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Sample records for horticulture

  1. Horticulture.

    ERIC Educational Resources Information Center

    Aitken, James

    This curriculum guide is intended to assist vocational instructors in preparing students for entry-level employment in the field of horticulture and getting them ready for advanced training in the workplace. The package contains a validated competency/skill and task list, an instructor's guide, and an annotated bibliography. The following…

  2. Basic Horticulture.

    ERIC Educational Resources Information Center

    Geer, Barbra Farabough

    This learning packet contains teaching suggestions and student learning materials for a course in basic horticulture aimed at preparing students for employment in a number of horticulture areas. The packet includes nine sections and twenty instructional units. Following the standard format established for Oklahoma vocational education materials in…

  3. Ornamental Horticulture.

    ERIC Educational Resources Information Center

    New York State Education Dept., Albany. Bureau of Occupational and Career Curriculum Development.

    Each of the 32 curriculum modules in this packet for ornamental horticulture instruction contains a brief description of the module content, a list of the major division or units, the overall objectives, objectives by units, content outline and suggested teaching methods, student application activities, and evaluation procedures. A listing of…

  4. Heartland Horticulture

    ERIC Educational Resources Information Center

    Poquette, Bonnie L.

    2009-01-01

    Midwestern gardeners are legendary for enduring and outwitting winter, with its heavy snowpack and recurring freezes and thaws. Most of them also reckon with a relatively short growing period. All of them find their horticultural plans complicated by hot, humid summers. In fact, the Midwest deals with four seasons dictating special considerations…

  5. SOEP: Horticulture.

    ERIC Educational Resources Information Center

    Townsend, Chris; And Others

    1984-01-01

    Theme articles on horticulture discuss how students develop basic skills in supervised occupational experience programs, how to develop a good program without additional funding, describe a program at a junior college, and outline a program preparing students for job entry or higher education. (JOW)

  6. Elderberry: Botany, Horticulture, Potential

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Horticultural Review allows extensive reviews of the state of the knowledge on certain topics or crops. Elderberry: Botany, Horticulture, Potential, is outlined with an Introduction, Botany, Horticulture, Propagation, Uses and Conclusion sections. This review compiles literature from around the w...

  7. Introduction to Horticulture. Teacher Edition. Horticulture Series.

    ERIC Educational Resources Information Center

    Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

    This publication is designed to provide a core of instruction for the many different fields in agricultural/horticultural education. This course contains 21 instructional units that cover the following topics: introduction to horticulture; beginning a career in horticulture; hand and power tools; introduction to safety; growing facilities;…

  8. Environmental Horticulture Program Guide.

    ERIC Educational Resources Information Center

    Georgia Univ., Athens. Dept. of Vocational Education.

    This program guide contains the standard environmental horticulture curriculum for technical institutes in Georgia. The curriculum encompasses the minimum competencies required for entry-level workers in the environmental horticulture field. The general information section contains the following: purpose and objectives; program description,…

  9. Environmental Horticulture Program Standards.

    ERIC Educational Resources Information Center

    Georgia Univ., Athens. Dept. of Vocational Education.

    This guide contains 45 program standards for the environmental horticulture program conducted in technical institutes in Georgia. The standards are divided into 12 categories: foundations (philosophy, purpose, goals, program objectives, availability, evaluation); admissions (admission requirements, provisional admission requirements, recruitment,…

  10. Horticulture/Floriculture.

    ERIC Educational Resources Information Center

    Lehigh County Area Vocational-Technical School, Schnecksville, PA.

    This brochure describes the philosophy and scope of a secondary-level course in floriculture and horticulture. Addressed in the individual units of the course are the following topics: the Future Farmers of America, floriculture, merchandising and selling, retail flower shop management, advertising, inventory, indentification of common floral…

  11. Competency-Based Horticulture: Floriculture.

    ERIC Educational Resources Information Center

    College of DuPage, Glen Ellyn, IL.

    This competency-based horticulture curriculum guide is designed to provide secondary and postsecondary horticulture teachers with a task-oriented program in floriculture. It contains a master resource list, a listing of floriculture resources available from various states, and 89 competency task sheets organized into nine competency areas. These…

  12. Competency-Based Horticulture. Floriculture.

    ERIC Educational Resources Information Center

    College of DuPage, Glen Ellyn, IL.

    One of two competency-based horticulture curriculum guides developed by an Illinois project, this Floriculture guide provides the classroom teacher with specific tasks determined by state industry personnel to be necessary for entry-level job placement. It is intended for horticulture education at the senior high school and two year college level.…

  13. Native Americans' Interest in Horticulture.

    ERIC Educational Resources Information Center

    Meyer, Mary Hockenberry

    1999-01-01

    Focus groups arranged by local Native American Master Gardeners on two Minnesota reservations determined community interest in extension-horticulture programs. Topics of interest included food preservation and historical Native-American uses of plants. (SK)

  14. Urban Horticulture: Scope and Sequence.

    ERIC Educational Resources Information Center

    Nashville - Davidson County Metropolitan Public Schools, TN.

    This guide, which was written as an initial step in the development of a systemwide articulated curriculum sequence for all vocational programs within the Metropolitan Nashville Public School System, outlines the suggested scope and sequence of a 4-year program in urban horticulture. The guide consists of a course description; general course…

  15. Horticulture Series. Duty Task List.

    ERIC Educational Resources Information Center

    Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

    This document contains the occupational duty/task lists for 9 occupations in the horticulture series. Each occupation is divided into a number of duties. A separate page for each duty in the occupation lists the tasks in that duty along with its code number and columns to indicate whether that particular duty has been taught and to provide space…

  16. Competency-Based Horticulture: Gardening--Groundskeeping.

    ERIC Educational Resources Information Center

    College of DuPage, Glen Ellyn, IL.

    This competency-based horticulture curriculum guide is designed to provide secondary and postsecondary horticulture teachers with a task-oriented program in gardening/groundskeeping. It contains a master resource list, a listing of gardening/groundskeeping resources available from various states, and 87 competency task sheets organized into 10…

  17. CVAE-VEH Horticulture Course Outline.

    ERIC Educational Resources Information Center

    Texas A and M Univ., College Station. Vocational Instructional Services.

    This curriculum guide consists of 14 units for use in teaching a high school level horticulture course. Covered in the individual units are the following topics: opportunities in horticultural occupations; plant classification and identification; structures and equipment used in producing greenhouse, ornamental, and nursery plants; greenhouse…

  18. Competencies Needed by Workers in Horticultural Occupations.

    ERIC Educational Resources Information Center

    Kaas, Duane; Kahler, Alan A.

    This study was undertaken to identify occupational areas in the horticultural industry and to identify, describe, and categorize the mental and physical skills needed by workers in horticultural occupations. Competency lists were developed for these occupational areas: arborist services, farm and garden supply centers, golf course management,…

  19. Marketing time predicts naturalization of horticultural plants

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Horticulture is an important source of naturalized plants, but little is known about naturalization frequencies and potential patterns of naturalization in horticultural plants. We analyzed a unique set of data derived from the detailed sales catalogs (1886-1930) of the most important early Florida ...

  20. Competency-Based Horticulture: Turfgrass Maintenance Worker.

    ERIC Educational Resources Information Center

    College of DuPage, Glen Ellyn, IL.

    This competency-based horticulture curriculum guide is designed to provide secondary and postsecondary horticulture teachers with a task-oriented program for training turfgrass maintenance workers. It contains a master resource list, a listing of turfgrass maintenance resources available from various states, and 59 competency task sheets organized…

  1. Horticulture Therapy Activities for Exceptional Students.

    ERIC Educational Resources Information Center

    Airhart, Douglas L.; And Others

    1988-01-01

    The Tennessee Technological University's Program of Special Education sponsors a "Super Saturday" of enrichment activities for gifted and talented students as well as students with learning disabilities. A session on horticulture was planned and arranged by students in a class on horticultural therapy who designed learning activities of two types:…

  2. Competency-Based Horticulture. Gardening/Groundskeeping.

    ERIC Educational Resources Information Center

    College of DuPage, Glen Ellyn, IL.

    One of two competency-based horticulture curriculum guides developed by an Illinois project, this Gardening/Groundskeeping guide provides the classroom teacher with specific tasks determined by state industry personnel to be necessary for entry-level job placement. It is intended for horticulture education at the senior high school and two-year…

  3. A Comprehensive Horticulture Curriculum Guide for New Jersey Schools.

    ERIC Educational Resources Information Center

    Rutgers, The State Univ., New Brunswick, NJ. Cook Coll.

    A horticultural core curriculum and draft copies of three horticultural cluster curricula are provided. Materials related to the curriculum development project appear first. The core curriculum is designed to provide broad initial instruction in horticulture for students in the first year of a secondary-level vocational horticulture program. The…

  4. Horticulture

    ERIC Educational Resources Information Center

    Murdock, Ashleigh Barbee, Ed.

    2011-01-01

    Secondary vocational-technical education programs in Mississippi are faced with many challenges resulting from sweeping educational reforms at the national and state levels. Schools and teachers are increasingly being held accountable for providing true learning activities to every student in the classroom. This accountability is measured through…

  5. Carotenoid metabolism and regulation in horticultural crops.

    PubMed

    Yuan, Hui; Zhang, Junxiang; Nageswaran, Divyashree; Li, Li

    2015-01-01

    Carotenoids are a diverse group of pigments widely distributed in nature. The vivid yellow, orange, and red colors of many horticultural crops are attributed to the overaccumulation of carotenoids, which contribute to a critical agronomic trait for flowers and an important quality trait for fruits and vegetables. Not only do carotenoids give horticultural crops their visual appeal, they also enhance nutritional value and health benefits for humans. As a result, carotenoid research in horticultural crops has grown exponentially over the last decade. These investigations have advanced our fundamental understanding of carotenoid metabolism and regulation in plants. In this review, we provide an overview of carotenoid biosynthesis, degradation, and accumulation in horticultural crops and highlight recent achievements in our understanding of carotenoid metabolic regulation in vegetables, fruits, and flowers. PMID:26504578

  6. Carotenoid metabolism and regulation in horticultural crops

    PubMed Central

    Yuan, Hui; Zhang, Junxiang; Nageswaran, Divyashree; Li, Li

    2015-01-01

    Carotenoids are a diverse group of pigments widely distributed in nature. The vivid yellow, orange, and red colors of many horticultural crops are attributed to the overaccumulation of carotenoids, which contribute to a critical agronomic trait for flowers and an important quality trait for fruits and vegetables. Not only do carotenoids give horticultural crops their visual appeal, they also enhance nutritional value and health benefits for humans. As a result, carotenoid research in horticultural crops has grown exponentially over the last decade. These investigations have advanced our fundamental understanding of carotenoid metabolism and regulation in plants. In this review, we provide an overview of carotenoid biosynthesis, degradation, and accumulation in horticultural crops and highlight recent achievements in our understanding of carotenoid metabolic regulation in vegetables, fruits, and flowers. PMID:26504578

  7. Horticulture Therapy Activities for Exceptional Children.

    ERIC Educational Resources Information Center

    Doutt, Kathleen M.; And Others

    1989-01-01

    The Tennessee Technological University offers an enrichment program (consisting of a summer session and three Saturdays) in which gifted children and children with learning disabilities are grouped together for activities. Horticulture is one of the few enrichment activities adaptable to both groups. Children are allowed to engage in the same…

  8. Ornamental Horticulture. A Curriculum Guide. Preliminary Draft.

    ERIC Educational Resources Information Center

    South Carolina State Dept. of Education, Columbia. Agricultural Education Section.

    Developed as part of a larger project to revise the total agricultural education curriculum in South Carolina, this curriculum guide for a 2-year ornamental horticulture course contains six functional units, each with several sub-units, and six horizontal supportive units. Each unit includes behavioral objectives, learning activities, topic…

  9. Horticulture-Agriculture Technologies. State Competency Profile.

    ERIC Educational Resources Information Center

    Ohio Board of Regents, Columbus.

    This document, which lists the horticultural-agricultural technologies competencies identified by representatives from business, industry, and labor as well as educators throughout Ohio, is intended to assist individuals and organizations in developing college tech prep programs that will prepare students from secondary through post-secondary…

  10. Carotenoid metabolism and regulation in horticultural crops

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Carotenoids are a diverse group of pigments widely distributed in nature. The vivid yellow, orange, and red colors in many horticultural crops attribute to overaccumulation of carotenoids, which contribute to a critical agronomic trait for flowers and an important quality trait for fruits and vegeta...

  11. Polyacrylamide Hydrogel Properties for Horticultural Applications

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Polyacrylamide (PAAm) hydrogels are commonly employed to ensure hydration of the growth media and minimize crop losses during the crop production and postproduction phases in horticulture. However, studies of the effect of these materials have shown that they have a minimal effect on crop life and q...

  12. Agriculture: Horticulture. Secondary Schools. Curriculum Guide.

    ERIC Educational Resources Information Center

    Trust Territory of the Pacific Islands Dept. of Education, Saipan.

    This agricultural curriculum guide on horticulture for secondary students is one of six developed for inservice teachers at Marianas High School in Saipan. The guide provides the rationale, description, goals, and objectives of the program; the program of studies and performance objectives by levels; samples of lesson plans for effective delivery…

  13. Marketing time predicts naturalization of horticultural plants.

    PubMed

    Pemberton, Robert W; Liu, Hong

    2009-01-01

    Horticulture is an important source of naturalized plants, but our knowledge about naturalization frequencies and potential patterns of naturalization in horticultural plants is limited. We analyzed a unique set of data derived from the detailed sales catalogs (1887-1930) of the most important early Florida, USA, plant nursery (Royal Palm Nursery) to detect naturalization patterns of these horticultural plants in the state. Of the 1903 nonnative species sold by the nursery, 15% naturalized. The probability of plants becoming naturalized increases significantly with the number of years the plants were marketed. Plants that became invasive and naturalized were sold for an average of 19.6 and 14.8 years, respectively, compared to 6.8 years for non-naturalized plants, and the naturalization of plants sold for 30 years or more is 70%. Unexpectedly, plants that were sold earlier were less likely to naturalize than those sold later. The nursery's inexperience, which caused them to grow and market many plants unsuited to Florida during their early period, may account for this pattern. Plants with pantropical distributions and those native to both Africa and Asia were more likely to naturalize (42%), than were plants native to other smaller regions, suggesting that plants with large native ranges were more likely to naturalize. Naturalization percentages also differed according to plant life form, with the most naturalization occurring in aquatic herbs (36.8%) and vines (30.8%). Plants belonging to the families Araceae, Apocynaceae, Convolvulaceae, Moraceae, Oleaceae, and Verbenaceae had higher than expected naturalization. Information theoretic model selection indicated that the number of years a plant was sold, alone or together with the first year a plant was sold, was the strongest predictor of naturalization. Because continued importation and marketing of nonnative horticultural plants will lead to additional plant naturalization and invasion, a comprehensive approach

  14. Temporal and spatial control of gene expression in horticultural crops

    PubMed Central

    Dutt, Manjul; Dhekney, Sadanand A; Soriano, Leonardo; Kandel, Raju; Grosser, Jude W

    2014-01-01

    Biotechnology provides plant breeders an additional tool to improve various traits desired by growers and consumers of horticultural crops. It also provides genetic solutions to major problems affecting horticultural crops and can be a means for rapid improvement of a cultivar. With the availability of a number of horticultural genome sequences, it has become relatively easier to utilize these resources to identify DNA sequences for both basic and applied research. Promoters play a key role in plant gene expression and the regulation of gene expression. In recent years, rapid progress has been made on the isolation and evaluation of plant-derived promoters and their use in horticultural crops, as more and more species become amenable to genetic transformation. Our understanding of the tools and techniques of horticultural plant biotechnology has now evolved from a discovery phase to an implementation phase. The availability of a large number of promoters derived from horticultural plants opens up the field for utilization of native sequences and improving crops using precision breeding. In this review, we look at the temporal and spatial control of gene expression in horticultural crops and the usage of a variety of promoters either isolated from horticultural crops or used in horticultural crop improvement. PMID:26504550

  15. Horticultural Related Occupations. VEH Horticulture Related. Curriculum Guide for Agribusiness 161.

    ERIC Educational Resources Information Center

    Texas A and M Univ., College Station. Dept. of Agricultural Education.

    This curriculum guide provides materials for teachers to use in developing a 1- or 2-year course in horticulture-related occupations for at-risk and special education students. It is one of 28 semester courses in agricultural science and technology for Texas high schools. The program prepares low-achieving students with employability skills that…

  16. Asia’s Indigenous Horticultural Crops: An Introduction

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Crop diversity is an urgent issue today in horticulture, which is faced with an erosion of crop variability as monoculture systems dominate crop production throughout the world, particularly in Europe and North America. At the same time there is great interest in indigenous horticultural crops aroun...

  17. Ornamental Horticulture. Course of Study Outlines. 1975 Edition. Volume XXX.

    ERIC Educational Resources Information Center

    Wilson, Aubry

    These courses of study in ornamental horticulture for secondary and adult technical education levels are based on a 1972 Rutgers University study and are designed to accomodate occupational needs in the field of ornamental horticulture. Job titles emphasized at the secondary level are caretaker, nurserymen, flower grower, and flower salesperson;…

  18. Healing, health, and horticulture: introduction to the workshop

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The present-day emphasis of horticulture and health is an extension of ancient and medieval traditions. The relationship of healing and the horticultural arts predates written history and relates to ancient wisdom, custom, and folklore. Plants and health have been of great concern for humankind cons...

  19. Environmental Horticulture. Project Report Phase I with Research Findings.

    ERIC Educational Resources Information Center

    Bachler, Mike; Sappe', Hoyt

    This report provides results of Phase I of a project that researched the occupational area of environmental horticulture, established appropriate committees, and conducted task verification. These results are intended to guide development of a program designed to address the needs of the horticulture field. Section 1 contains general information:…

  20. Kansas Vocational Agriculture Education. Basic Core Curriculum Project, Horticulture I.

    ERIC Educational Resources Information Center

    Albracht, James, Ed.

    This secondary horticulture curriculum guide is one of a set of three designated as the basic core of instruction for horticulture programs in Kansas. Units of instruction are presented in thirteen sections: (1) Orientation and Careers, (2) Leadership and Future Farmers of America, (3) Supervised Occupational Experience Program, (4) Plant…

  1. Status of global strategies for horticultural fruit crops

    Technology Transfer Automated Retrieval System (TEKTRAN)

    During the International Horticultural Congress of 2014, a workshop discussed the advances of the development of global conservation strategies for some of the horticultural crops mentioned in International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA) Annex 1. While global co...

  2. Kansas Vocational Agriculture Education. Basic Core Curriculum Project, Horticulture II.

    ERIC Educational Resources Information Center

    Albracht, James, Ed.

    This second horticulture guide is one of a set of three designated as the basic core of instruction for horticulture programs in Kansas. Units of instruction are presented in eight sections: (1) Leadership, (2) Supervised Occupational Experience, (3) Plant Propagation, (4) Soil and Plant Growth Media, (5) Fertilizers, (6) Greenhouse, (7) Plant…

  3. Workload composition of the organic horticulture.

    PubMed

    Abrahão, R F; Ribeiro, I A V; Tereso, M J A

    2012-01-01

    This project aimed the characterization of the physical workload of the organic horticulture by determining the frequency of exposure of operators to some activity categories. To do this, an adaptation of the PATH method (Posture, Activities, Tools and Handling) was done to be used in the context of agriculture work. The approach included an evaluation of physical effort demanded to perform the tasks in the work systems from an systematic sampling of work situations from a synchronized monitoring of the heart rate; a characterization of posture repertoire adopted by workers by adapting the OWAS method; an identification of pain body areas using the Corlett diagram; and a subjective evaluation of perceived effort using the RPE Borg scale. The results of the individual assessments were cross correlated and explained from an observation of the work activity. Postural demands were more significant than cardiovascular demands for the studied tasks, and correlated positively with the expressions of bodily discomfort. It is expected that, besides the knowledge obtained of the physical effort demanded by organic horticulture, this project will be useful for the development of new technologies directed to minimize the difficulties of the human work and to raise the work productivity.

  4. Air pollution and horticulture: an overview

    SciTech Connect

    MacLean, D.C.

    1983-10-01

    An overview is presented of some of the general effects of pollutants on plants, as well as an approach for assessing these effects. The nature of effects can range from no effects at low doses to a reduced growth or yield at higher atmospheric concentrations. In addition to the dose of the pollutant, the degree of response is governed by a number of internal and external factors. Relative number and size of stomata have marked effect on pollutant uptake by the plant; therefore, environmental conditions exert a strong influence on pollutant-induced responses. Future research should focus on determining if the pollutant doses that now occur in areas of horticultural production cause effects and, if so, whether the effects constitute injury.

  5. Perceptions of the Value of Extended Service in Horticulture.

    ERIC Educational Resources Information Center

    Watkins, Larae; Miller, Larry E.

    1983-01-01

    This study suggests the need for several improvements in the summer vocational horticulture education programs. Knowledge of the summer program, its aims, and the teacher's responsibilities appears to be lacking in the groups studied. (SSH)

  6. METHODS FOR EXCLUDING SLUGS AND SNAILS ON EXPORTED HORTICULTURAL COMMODITIES

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Increasingly, slugs and snails (mollusks) are recognized as important quarantine pests threatening agriculture, export markets and the environment. This increased awareness results from the rapid spread of damaging species concurrent with higher levels of international trade of horticultural commodi...

  7. How-to-Do-It: Green Jeans Horticulture.

    ERIC Educational Resources Information Center

    Menger, Richard A.

    1989-01-01

    Describes an outdoor classroom curriculum project which was devised to accommodate students of average and below-average academic ability and provide them with practical horticultural experiences. Discusses funding, plant facilities, program, and resultant products. (RT)

  8. Audio-Tutorial Horticulture Learning Units. Final Report.

    ERIC Educational Resources Information Center

    Gillespie, Robert J.

    The four units in this workbook (units 2, 3, 5, and 9) are part of a larger 14-unit course in horticulture. The topics are plant classification, the plant cell, complex compounds, and vegetative growth and development. Student learning in these fields is frequently low in the traditional lecture-laboratory setting. These materials are designed for…

  9. Implementing the Plan. Competency Based Teaching Materials in Horticulture.

    ERIC Educational Resources Information Center

    Legacy, Jim; And Others

    This competency-based curriculum unit on implementing the landscape plan is one of five developed for classroom use in teaching the landscape/nursery area of horticulture. The seven sections are each divided into teaching content (in a question-and-answer format) and student skills that outline steps and factors for consideration. Topics covered…

  10. Integrating Sunflower Oil Seed Crops into Florida Horticultural Production Systems

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Locally produced biodiesel feedstock plant oil creates a unique possibility to integrate multiple-goal oriented cover crops into Florida horticultural production systems. Typically, cover crops are planted to improve soil fertility and the natural suppression of soilborne pests at times when fields...

  11. Developing a national strategic plan for consumer horticulture

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Consumer Horticulture encompasses a wide-array of activities that are practiced by and of interest to the gardening public, garden-focused non-governmental organizations, and gardening-related industries. In a previous publication, we described the current lack of funding support for research, exten...

  12. An Analysis of the Horticulture Equipment and Services Occupation.

    ERIC Educational Resources Information Center

    Harbage, Monroe; Lechner, Donald L.

    The general purpose of the occupational analysis is to provide workable, basic information dealing with the many and varied duties performed in the horticulture equipment and services occupation. The document opens with a brief introduction followed by a job description. The bulk of the document is presented in table form. Fourteen duties are…

  13. Maintaining the Landscape. Competency Based Teaching Materials in Horticulture.

    ERIC Educational Resources Information Center

    Legacy, Jim; And Others

    This competency-based curriculum unit on maintaining the landscape is one of five developed for classroom use in teaching the landscape/nursery area of horticulture. The five sections are each divided into teaching content (in a question-and-answer format) and student skills that outline steps and factors for consideration. Topics covered include…

  14. Occupational Education for Students with Special Needs: Ornamental Horticulture.

    ERIC Educational Resources Information Center

    Nassau County Board of Cooperative Educational Services, Westbury, NY.

    This curriculum resource guide on ornamental horticulture is one of a series of seventeen specialized curriculum guides for occupational education of the marginal, handicapped, or special needs occupational education student. The guide begins with six behavior clusters that contain a series of forty-two instructional topics designed to teach…

  15. Soils and Fertilizers. Competency Based Teaching Materials in Horticulture.

    ERIC Educational Resources Information Center

    Legacy, Jim; And Others

    This competency-based curriculum unit on soils and fertilizers is one of four developed for classroom use in teaching the turf and lawn services area of horticulture. The four sections are each divided into teaching content (in a question-and-answer format) and student skills that outline taking soil samples, testing samples, preparing soil for…

  16. Ornamental Horticulture Technology; Suggested 2-Year Post High School Curriculums.

    ERIC Educational Resources Information Center

    Bureau of Adult, Vocational, and Technical Education (DHEW/OE), Washington, DC. Div. of Vocational and Technical Education.

    Developed by a technical education specialist, this guide is designed to aid school administrators in planning and developing 2-year post-high school programs or evaluating existing programs in ornamental horticulture technology. In addition to general information on the program, contents include course outlines with examples of tests and…

  17. Vocational Instructional Materials in Horticulture for Students with Special Needs.

    ERIC Educational Resources Information Center

    Ethridge, James I.

    This resource catalog of horticulture curriculum materials for students with special needs is divided into twenty-seven instructional areas: aboriculture; annuals; entomology; floral crops production; floral design and flower shop operations; garden center; greenhouse; ground covers and hedges; herbs; house plants; landscape construction and…

  18. Planting Turf. Competency Based Teaching Materials in Horticulture.

    ERIC Educational Resources Information Center

    Legacy, Jim; And Others

    This competency-based curriculum unit on planting turf is one of four developed for classroom use in teaching the turf and lawn services area of horticulture. The eight sections are each divided into teaching content (in a question-and-answer format) and student skills that outline steps and factors for consideration. Topics covered include…

  19. Effects of Horticulture Therapy on Engagement and Affect

    ERIC Educational Resources Information Center

    Gigliotti, Christina M.; Jarrott, Shannon E.

    2005-01-01

    Implementing generationally appropriate activities for persons with dementia is a challenging task. Horticulture therapy (HT) addresses this challenge through the use of plants to facilitate holistic outcomes. Utilizing the model of environmental press, the current study sought to analyse adult day service (ADS) participants' responses to HT as…

  20. Mississippi Curriculum Framework for Horticulture (Program CIP: 01.0601--Horticulture Serv. Op. & Mgmt., Gen.). Secondary Programs.

    ERIC Educational Resources Information Center

    Mississippi Research and Curriculum Unit for Vocational and Technical Education, State College.

    This document, which reflects Mississippi's statutory requirement that instructional programs be based on core curricula and performance-based assessment, contains outlines of the instructional units required in local instructional management plans and daily lesson plans for horticulture I and II. Presented first are a program description and…

  1. Efficiency, sufficiency, and recent change in Newfoundland subsistence horticulture

    SciTech Connect

    Omohundro, J.T.

    1986-09-01

    Traditional Newfoundland horticulture has been a subordinate and compensatory element of the subsistence sphere in a plural economy centered on fishing. Criticized as inefficient and ruinous to the land, this tuber-rootbrassica gardening has in fact been a valuable contribution to diet, is relatively efficient, and compensates for the inadequacies of land and weather. Field data from the Great Northern Peninsula, where some traditional practices persist, demonstrate that the practices conserve time and labor, and substitute massive applications of materials to assure a yield sufficient for household needs. The inefficiency in the tradition may be understood as a response to the constraints upon household labor and follows a kind of Leibig's law of the minimum. Recent changes in gardening practices reveal the dynamics of horticulture in the household's mixed economic strategy. As cash and land have become more common, they have been used to further reduce time while maintaining sufficiency.

  2. Accelerator radiocarbon dating of evidence for prehistoric horticulture in Illinois

    USGS Publications Warehouse

    Conard, N.; Asch, D.L.; Asch, N.B.; Elmore, D.; Gove, H.; Rubin, M.; Brown, J.A.; Wiant, M.D.; Farnsworth, K.B.; Cook, T.G.

    1984-01-01

    With the development of direct detection radiocarbon dating, which uses an accelerator as part of a highly selective mass spectrometer, it is now possible to determine the age of milligram samples of organic materials1-5. One application of accelerator dating is in evaluating scanty, sometimes controversial evidence for early horticulture throughout the world. We have now used the technique to date small samples of carbonized, cultivated plant remains from archaeological sites in Illinois. The results, reported here, establish (1) that squash was introduced by 7,000 yr ago, 2,500 yr before eastern North American records previously reported; (2) that horticulture involving indigenous plants had begun by 4,000 BP in eastern North America with domestication of Iva annua, a small-seeded annual; (3) that anomalous discoveries of Archaic period maize represent contaminants; and (4) that introduction of maize by initial Middle Woodland times (???2,000 BP) is questionable. ?? 1984 Nature Publishing Group.

  3. Experimental delayed-light-emission meter for horticultural crops

    NASA Astrophysics Data System (ADS)

    Forbus, W. R.; Hardigree, G. A.; Adams, J. H.

    1985-09-01

    Equipment for measuring the delayed light emission (DLE) from horticultural crops was developed for use in a long-range study to determine the feasibility of sorting different fruits and vegetables according to maturity by measuring the light emitted from them several seconds after illumination by a controlled light source. Preliminary tests with tomatoes showed that the magnitude of detector response to DLE decreased during apparent ripening as indicated by an increase in red color.

  4. Past and future climate patterns affecting temperate, sub-tropical and tropical horticultural crop production

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Perennial horticultural crop production will be impacted by climate change effects on temperature, water availability, solar radiation, air pollution, and carbon dioxide. Horticultural crop value is derived from both the quantity and the quality of the harvested product; both of which are affected ...

  5. 78 FR 11725 - WTO Dispute Settlement Proceeding Regarding Indonesia Importation of Horticultural Products...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-19

    ... Products, Animals and Animal Products AGENCY: Office of the United States Trade Representative. ACTION... horticultural products, animals and animal products. That request may be found at www.wto.org , contained in a... by Indonesia on the importation of horticultural products, animals and animal products into...

  6. 78 FR 27279 - WTO Dispute Settlement Proceeding Regarding Indonesia-Importation of Horticultural Products...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-09

    ... Horticultural Products, Animals, and Animal Products AGENCY: Office of the United States Trade Representative... products, animals, and animal products. In particular, Indonesia imposes non-automatic import licensing regimes for horticultural products and for animals and animal products pursuant to which an importer...

  7. Developing a High School Program in Ornamental Horticulture. Volume I, Nursery Management.

    ERIC Educational Resources Information Center

    Brown, Howard C.; And Others

    This manual is one of a 3-volume series prepared to guide the high school vocational agriculture teacher in teaching ornamental horticulture. Chapter I introduces the reader to ornamental horticulture and gives examples of how the subject can be integrated into an existing agriculture curriculum. Chapter II is devoted to the public relations…

  8. OPERATING, REPAIRING, AND MAINTAINING SMALL POWER EQUIPMENT. HORTICULTURE-SERVICE OCCUPATIONS, MODULE NO. 10.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center for Vocational and Technical Education.

    ONE OF A SERIES DESIGNED TO PREPARE HIGH SCHOOL STUDENTS FOR HORTICULTURE SERVICE OCCUPATIONS, THIS MODULE HAS AS ITS MAJOR OBJECTIVE TO DEVELOP A PROFICIENCY IN THE OPERATION, MAINTENANCE, AND REPAIR OF SMALL POWER EQUIPMENT USED IN HORTICULTURAL ENTERPRISES. IT WAS DEVELOPED BY A NATIONAL TASK FORCE ON THE BASIS OF DATA FROM STATE STUDIES.…

  9. 26 CFR 1.501(c)(5)-1 - Labor, agricultural, and horticultural organizations.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 26 Internal Revenue 7 2011-04-01 2009-04-01 true Labor, agricultural, and horticultural... Labor, agricultural, and horticultural organizations. (a) The organizations contemplated by section 501... those engaged in such pursuits, the improvement of the grade of their products, and the development of...

  10. 26 CFR 1.501(c)(5)-1 - Labor, agricultural, and horticultural organizations.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 26 Internal Revenue 7 2010-04-01 2010-04-01 true Labor, agricultural, and horticultural... Labor, agricultural, and horticultural organizations. (a) The organizations contemplated by section 501... those engaged in such pursuits, the improvement of the grade of their products, and the development of...

  11. Participation of Minority Youth in Urban Horticulture: A New York City High School Project.

    ERIC Educational Resources Information Center

    Gordon, Howard R. D.

    1987-01-01

    The author describes the experience-based urban Vocational Horticulture Project sponsored by the Central Diesel School of Brooklyn, New York, and involving the National Park Service and the Cornell Cooperative Extension Service. The program prepares minority youth for entry-level employment in ornamental horticulture or in forestry and wildlife…

  12. A Content Analysis of U.S. Botanical and Horticultural Library Web Sites.

    ERIC Educational Resources Information Center

    Meyers, Michele M.

    The purpose of this study was to provide an introductory analysis of the content of the Web sites of botanical and horticultural libraries in the United States to determine what types of resources and information is included, whether or not information is organized and accessible, and to what extent botanical and horticultural libraries are using…

  13. USING SOIL AND OTHER PLANT GROWING MEDIA EFFECTIVELY. HORTICULTURE-SERVICE OCCUPATIONS, MODULE NO. 5.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center for Vocational and Technical Education.

    ONE OF A SERIES DESIGNED TO PREPARE HIGH SCHOOL STUDENTS FOR HORTICULTURE SERVICE OCCUPATIONS, THIS MODULE HAS AS ITS MAJOR OBJECTIVE TO DEVELOP THE APPRECIATIONS, UNDERSTANDINGS, AND ABILITIES NEEDED TO USE PLANT GROWING MEDIA IN GROWING HORTICULTURAL PLANTS. IT WAS DEVELOPED BY A NATIONAL TASK FORCE ON THE BASIS OF DATA FROM STATE STUDIES.…

  14. Core I Materials for Metropolitan Agriculture/Horticulture Programs. Units G-J.

    ERIC Educational Resources Information Center

    Ethridge, Jim; And Others

    These units of instructional materials and teaching aids are the final four of a series of 10 designed for use in metropolitan agriculture/horticulture programs for students in grades 9 and 10. Covered in the unit on growing and managing horticultural crops are watering plants; pruning, pinching, and planting plants; using plant production…

  15. Orchard Management: Horticultural Practices for Peace Corps Volunteers. Appropriate Technologies for Development. Reprint R-31.

    ERIC Educational Resources Information Center

    Development and Resources Corp.

    This manual is intended for use by Peace Corps volunteers as a resource for gaining an understanding and knowledge of basic horticultural principles and practices of orchard management. Addressed in the individual units of instructional text are orchard soils; botany of horticultural plants; insect and disease control in orchards; pome, stone,…

  16. Geoinformation evaluation of soil resource potential for horticulture in Krasnodar region and the Republic of Adygea

    NASA Astrophysics Data System (ADS)

    Savin, I. Yu.; Dragavtseva, I. A.; Mironenko, N. Ya.; Sergeeva, N. N.; Domozhirova, V. V.; Morenets, A. S.; Ovechkin, S. V.

    2016-04-01

    A geoinformation database for assessing soil resource potential for horticulture in Krasnodar region and Adygea has been developed. The results of geoinformation analysis indicate that only 55-60% of soils in these regions are suitable for growing horticultural crops without limitations; about 35-40% of the total soil area is unsuitable for horticultural purposes. For plum trees, the area of unsuitable soils is somewhat lower than for other horticultural crops. Geographically, the areas of soils suitable and unsuitable for horticulture are close to one another. The thickness of the loose earthy soil material, the gravel content, the degree of salinization, the soil texture, and the degree of soil hydromorphism are the major soil properties imposing considerable limitations for the development of fruit-growing industry in the studied regions. The highest portions of soils suitable for horticulture are found in Eiskii, Kushchevskii, Krylovskii, Shcherbinovskii, and Novokubanskii districts of Krasnodar region. The development of horticulture in Tuapsinskii, Slavyanskii, and Primorsko-Akhtarskii districts is limited because of the unsuitability of soils for this purpose. About 8% of the existing orchards are found on soils recognized as unsuitable for horticulture, and only about 20% of the existing orchards are found on soils suitable for fruit growing without limitations. About 70% of the existing fruit orchards are located on degraded soils or on soils with certain limitations for horticulture. The profitability of fruit orchards on such soils is lower than that of the orchards planted on soils without limitations for horticulture. This information is necessary for the adequate economic evaluation of the degree of soil degradation.

  17. Physiological relaxation induced by horticultural activity: transplanting work using flowering plants

    PubMed Central

    2013-01-01

    Background Despite increasing attention and a growing volume of research data, little physiological evidence is available on the benefits of horticultural activity and the different effects on individuals. Therefore, the aim of the present study was to investigate the physiological effects of horticultural activity and to examine how differences in personality alter these effects. Results The effects of transplanting real flowers (horticultural activity) and handling artificial flowers (control activity) on human physiological activity were compared. On the first day, eight participants engaged in horticultural activity and another eight in the control activity. On the second day, participants switched roles. Participants’ physiological conditions during each activity were assessed by measuring the heart rate and heart rate variability (HRV). Psychological responses, which were measured using a semantic differential rating scale, showed that the horticultural activity promoted comfortable, soothed, and natural feelings, compared to the control activity. Analysis of physiological responses using two-way repeated measures analysis of variance (ANOVA) revealed that sympathetic nervous activity significantly decreased in the late time period (11 to 15 minutes) of horticultural activity only in the type A group. Conclusions This study supports the fact that the horticultural activity can enhance psychological and physiological relaxation effects, although these physiological effects can differ among individuals with different personalities. PMID:24112302

  18. Tribromophenol and pentachlorophenol uptake from sawdust to horticultural products.

    PubMed

    Mardones, C; Von Baer, D; Silva, J; Ruff, A; Gutierrez, L; Berg, A

    2009-10-01

    This paper presents a study of the uptake of 2,4,6-tribromophenol (TBP), pentachlorophenol (PCP), and its metabolite pentachloroanisole (PCA) from contaminated sawdust from the forest industry in horticultural products such as apples, raspberries, and fodder maize for cattle feed. The samples were obtained from Bio-Bio Province in South Chile between 2002 and 2006. The analytical parameters of the methodology applied to the different matrices are presented and discussed. The chromatographic method was applied to determine the residues in 413 horticultural product samples. Eleven per cent of fodder maize samples showed detectable or quantifiable levels of PCP, TBP or PCA, 3% of samples presented quantifiable levels, although the concentrations surpassed the maximum allowed concentrations for vegetables (>10 microg kg(-1)) in only two samples. Traces of TBP were detected in eight samples, PCA was detected in 15, and PCP in 14 samples. Based on these results, a risk analysis was performed, indicating a low probability, 0.4% for PCA, 1.6% for TBP and 1.9% for PCP, to find concentrations higher than the allowed maximum. For apples and raspberries, no residues of these compounds were detected. These results indicate that those cultivars directly exposed to sawdust, like fodder maize, could contain detectable residues in several samples. To confirm this observation, a field assay was performed on fodder maize cultivated in the presence of sawdust artificially contaminated with 30 mg of TBP and/or PCP under controlled conditions. The results showed that under the experimental conditions used in the study, TBP can be transferred from sawdust to the plant, with an uptake rate of 0.04% from the TBP applied initially with sawdust but not to the corn ear. Also, the degradation of PCP to PCA was observed in the soil.

  19. Evaluating and optimizing horticultural regimes in space plant growth facilities

    NASA Astrophysics Data System (ADS)

    Berkovich, Y.; Chetirkin, R.; Wheeler, R.; Sager, J.

    In designing innovative Space Plant Growth Facilities (SPGF) for long duration space f ightl various limitations must be addressed including onboard resources: volume, energy consumption, heat transfer and crew labor expenditure. The required accuracy in evaluating onboard resources by using the equivalent mass methodology and applying it to the design of such facilities is not precise. This is due to the uncertainty of the structure and not completely understanding of the properties of all associated hardware, including the technology in these systems. We present a simple criteria of optimization for horticultural regimes in SPGF: Qmax = max [M · (EBI) 2 / (V · E · T) ], where M is the crop harvest in terms of total dry biomass in the plant growth system; EBI is the edible biomass index (harvest index), V is a volume occupied by the crop; E is the crop light energy supply during growth; T is the crop growth duration. The criterion reflects directly on the consumption of onboard resources for crop production. We analyzed the efficiency of plant crops and the environmental parameters by examining the criteria for 15 salad and 12 wheat crops from the data in the ALS database at Kennedy Space Center. Some following conclusion have been established: 1. The technology involved in growing salad crops on a cylindrical type surface provides a more meaningful Q-criterion; 2. Wheat crops were less efficient than leafy greens (salad crops) when examining resource utilization; 3. By increasing light intensity of the crop the efficiency of the resource utilization could decrease. Using the existing databases and Q-criteria we have found that the criteria can be used in optimizing design and horticultural regimes in the SPGF.

  20. Genome-editing technologies and their potential application in horticultural crop breeding

    PubMed Central

    Xiong, Jin-Song; Ding, Jing; Li, Yi

    2015-01-01

    Plant breeding, one of the oldest agricultural activities, parallels human civilization. Many crops have been domesticated to satisfy human's food and aesthetical needs, including numerous specialty horticultural crops such as fruits, vegetables, ornamental flowers, shrubs, and trees. Crop varieties originated through selection during early human civilization. Other technologies, such as various forms of hybridization, mutation, and transgenics, have also been invented and applied to crop breeding over the past centuries. The progress made in these breeding technologies, especially the modern biotechnology-based breeding technologies, has had a great impact on crop breeding as well as on our lives. Here, we first review the developmental process and applications of these technologies in horticultural crop breeding. Then, we mainly describe the principles of the latest genome-editing technologies and discuss their potential applications in the genetic improvement of horticultural crops. The advantages and challenges of genome-editing technologies in horticultural crop breeding are also discussed. PMID:26504570

  1. Green chemistry in protected horticulture: the use of peroxyacetic acid as a sustainable strategy.

    PubMed

    Carrasco, Gilda; Urrestarazu, Miguel

    2010-01-01

    Global reduction of chemical deposition into the environment is necessary. In protected horticulture, different strategies with biodegradable products are used to control pathogens. This review presents the available tools, especially for the management of protected horticultural species, including vegetables and ornamental plants. An analysis of the potential for degradable products that control pathogens and also encourage other productive factors, such as oxygen in the root system, is presented. Biosecurity in fertigation management of protected horticulture is conducted by using peroxyacetic acid mixtures that serve three basic principles: first, the manufacture of these products does not involve polluting processes; second, they have the same function as other chemicals, and third, after use and management there is no toxic residue left in the environment. The sustainability of protected horticulture depends on the development and introduction of technologies for implementation in the field. PMID:20559497

  2. Green Chemistry in Protected Horticulture: The Use of Peroxyacetic Acid as a Sustainable Strategy

    PubMed Central

    Carrasco, Gilda; Urrestarazu, Miguel

    2010-01-01

    Global reduction of chemical deposition into the environment is necessary. In protected horticulture, different strategies with biodegradable products are used to control pathogens. This review presents the available tools, especially for the management of protected horticultural species, including vegetables and ornamental plants. An analysis of the potential for degradable products that control pathogens and also encourage other productive factors, such as oxygen in the root system, is presented. Biosecurity in fertigation management of protected horticulture is conducted by using peroxyacetic acid mixtures that serve three basic principles: first, the manufacture of these products does not involve polluting processes; second, they have the same function as other chemicals, and third, after use and management there is no toxic residue left in the environment. The sustainability of protected horticulture depends on the development and introduction of technologies for implementation in the field. PMID:20559497

  3. Genome-editing technologies and their potential application in horticultural crop breeding.

    PubMed

    Xiong, Jin-Song; Ding, Jing; Li, Yi

    2015-01-01

    Plant breeding, one of the oldest agricultural activities, parallels human civilization. Many crops have been domesticated to satisfy human's food and aesthetical needs, including numerous specialty horticultural crops such as fruits, vegetables, ornamental flowers, shrubs, and trees. Crop varieties originated through selection during early human civilization. Other technologies, such as various forms of hybridization, mutation, and transgenics, have also been invented and applied to crop breeding over the past centuries. The progress made in these breeding technologies, especially the modern biotechnology-based breeding technologies, has had a great impact on crop breeding as well as on our lives. Here, we first review the developmental process and applications of these technologies in horticultural crop breeding. Then, we mainly describe the principles of the latest genome-editing technologies and discuss their potential applications in the genetic improvement of horticultural crops. The advantages and challenges of genome-editing technologies in horticultural crop breeding are also discussed. PMID:26504570

  4. Biosynthesis and molecular actions of specialized 1,4-naphthoquinone natural products produced by horticultural plants.

    PubMed

    Widhalm, Joshua R; Rhodes, David

    2016-01-01

    The 1,4-naphthoquinones (1,4-NQs) are a diverse group of natural products found in every kingdom of life. Plants, including many horticultural species, collectively synthesize hundreds of specialized 1,4-NQs with ecological roles in plant-plant (allelopathy), plant-insect and plant-microbe interactions. Numerous horticultural plants producing 1,4-NQs have also served as sources of traditional medicines for hundreds of years. As a result, horticultural species have been at the forefront of many basic studies conducted to understand the metabolism and function of specialized plant 1,4-NQs. Several 1,4-NQ natural products derived from horticultural plants have also emerged as promising scaffolds for developing new drugs. In this review, the current understanding of the core metabolic pathways leading to plant 1,4-NQs is provided with additional emphasis on downstream natural products originating from horticultural species. An overview on the biochemical mechanisms of action, both from an ecological and pharmacological perspective, of 1,4-NQs derived from horticultural plants is also provided. In addition, future directions for improving basic knowledge about plant 1,4-NQ metabolism are discussed. PMID:27688890

  5. Biosynthesis and molecular actions of specialized 1,4-naphthoquinone natural products produced by horticultural plants.

    PubMed

    Widhalm, Joshua R; Rhodes, David

    2016-01-01

    The 1,4-naphthoquinones (1,4-NQs) are a diverse group of natural products found in every kingdom of life. Plants, including many horticultural species, collectively synthesize hundreds of specialized 1,4-NQs with ecological roles in plant-plant (allelopathy), plant-insect and plant-microbe interactions. Numerous horticultural plants producing 1,4-NQs have also served as sources of traditional medicines for hundreds of years. As a result, horticultural species have been at the forefront of many basic studies conducted to understand the metabolism and function of specialized plant 1,4-NQs. Several 1,4-NQ natural products derived from horticultural plants have also emerged as promising scaffolds for developing new drugs. In this review, the current understanding of the core metabolic pathways leading to plant 1,4-NQs is provided with additional emphasis on downstream natural products originating from horticultural species. An overview on the biochemical mechanisms of action, both from an ecological and pharmacological perspective, of 1,4-NQs derived from horticultural plants is also provided. In addition, future directions for improving basic knowledge about plant 1,4-NQ metabolism are discussed.

  6. Biosynthesis and molecular actions of specialized 1,4-naphthoquinone natural products produced by horticultural plants

    PubMed Central

    Widhalm, Joshua R; Rhodes, David

    2016-01-01

    The 1,4-naphthoquinones (1,4-NQs) are a diverse group of natural products found in every kingdom of life. Plants, including many horticultural species, collectively synthesize hundreds of specialized 1,4-NQs with ecological roles in plant–plant (allelopathy), plant–insect and plant–microbe interactions. Numerous horticultural plants producing 1,4-NQs have also served as sources of traditional medicines for hundreds of years. As a result, horticultural species have been at the forefront of many basic studies conducted to understand the metabolism and function of specialized plant 1,4-NQs. Several 1,4-NQ natural products derived from horticultural plants have also emerged as promising scaffolds for developing new drugs. In this review, the current understanding of the core metabolic pathways leading to plant 1,4-NQs is provided with additional emphasis on downstream natural products originating from horticultural species. An overview on the biochemical mechanisms of action, both from an ecological and pharmacological perspective, of 1,4-NQs derived from horticultural plants is also provided. In addition, future directions for improving basic knowledge about plant 1,4-NQ metabolism are discussed. PMID:27688890

  7. Biosynthesis and molecular actions of specialized 1,4-naphthoquinone natural products produced by horticultural plants

    PubMed Central

    Widhalm, Joshua R; Rhodes, David

    2016-01-01

    The 1,4-naphthoquinones (1,4-NQs) are a diverse group of natural products found in every kingdom of life. Plants, including many horticultural species, collectively synthesize hundreds of specialized 1,4-NQs with ecological roles in plant–plant (allelopathy), plant–insect and plant–microbe interactions. Numerous horticultural plants producing 1,4-NQs have also served as sources of traditional medicines for hundreds of years. As a result, horticultural species have been at the forefront of many basic studies conducted to understand the metabolism and function of specialized plant 1,4-NQs. Several 1,4-NQ natural products derived from horticultural plants have also emerged as promising scaffolds for developing new drugs. In this review, the current understanding of the core metabolic pathways leading to plant 1,4-NQs is provided with additional emphasis on downstream natural products originating from horticultural species. An overview on the biochemical mechanisms of action, both from an ecological and pharmacological perspective, of 1,4-NQs derived from horticultural plants is also provided. In addition, future directions for improving basic knowledge about plant 1,4-NQ metabolism are discussed.

  8. "A triumph of brains over brute": women and science at the Horticultural College, Swanley, 1890-1910.

    PubMed

    Opitz, Donald L

    2013-03-01

    The founding of Britain's first horticultural college in 1889 advanced a scientific and coeducational response to three troubling national concerns: a major agricultural depression; the economic distress of single, unemployed women; and imperatives to develop the colonies. Buoyed by the technical instruction and women's movements, the Horticultural College and Produce Company, Limited, at Swanley, Kent, crystallized a transformation in the horticultural profession in which new science-based, formalized study threatened an earlier emphasis on practical apprenticeship training, with the effect of opening male-dominated trades to women practitioners. By 1903, the college closed its doors to male students, and new pathways were forged for women students interested in pursuing further scientific study. Resistance to the Horticultural College's model of science-based women's horticultural education positioned science and women as contested subjects throughout this period of horticulture's expansion in the academy.

  9. Development of a Sensor Node for Precision Horticulture

    PubMed Central

    López, Juan A.; Soto, Fulgencio; Sánchez, Pedro; Iborra, Andrés; Suardiaz, Juan; Vera, Juan A.

    2009-01-01

    This paper presents the design of a new wireless sensor node (GAIA Soil-Mote) for precision horticulture applications which permits the use of precision agricultural instruments based on the SDI-12 standard. Wireless communication is achieved with a transceiver compliant with the IEEE 802.15.4 standard. The GAIA Soil-Mote software implementation is based on TinyOS. A two-phase methodology was devised to validate the design of this sensor node. The first phase consisted of laboratory validation of the proposed hardware and software solution, including a study on power consumption and autonomy. The second phase consisted of implementing a monitoring application in a real broccoli (Brassica oleracea L. var Marathon) crop in Campo de Cartagena in south-east Spain. In this way the sensor node was validated in real operating conditions. This type of application was chosen because there is a large potential market for it in the farming sector, especially for the development of precision agriculture applications. PMID:22412309

  10. Conflict and compliance: Christianity and the occult in horticultural exporting.

    PubMed

    Dolan, C S

    1999-03-01

    The introduction of export horticulture in Meru District, Kenya, brought about disadvantageous effects on female farmers. Their workload increased while their earnings did not. Women reacted by turning to Christianity for support, and resorted to traditional witchcraft to regain control. In this article, Christianity and witchcraft are presented as ways of expressing discontent with the prevailing social norms, and as means to reclaim autonomy and security within their households. Since Kenyan women are entailed to meet the standards of being a good Christian wife, in which women are submissive to their husbands, the church became a means of escaping the confinements of their marriage. In Meru, Christian conversion offers a means of coping with life and an opportunity to interact with other women who share the same experience. Another strategy adopted by women is witchcraft, a traditional relic wherein women give "potions" to their husbands to induce psychosis and eventually death, which would then leave control of the household to the woman. In conclusion, the case presented here demonstrates how failure to recognize cultural dynamics leads to gender inequity and worsens women's well being, as well as men's security. PMID:12295338

  11. Evaluating and optimizing horticultural regimes in space plant growth facilities

    NASA Technical Reports Server (NTRS)

    Berkovich, Y. A.; Chetirkin, P. V.; Wheeler, R. M.; Sager, J. C.

    2004-01-01

    In designing innovative space plant growth facilities (SPGF) for long duration space flight, various limitations must be addressed including onboard resources: volume, energy consumption, heat transfer and crew labor expenditure. The required accuracy in evaluating on board resources by using the equivalent mass methodology and applying it to the design of such facilities is not precise. This is due to the uncertainty of the structure and not completely understanding the properties of all associated hardware, including the technology in these systems. We present a simple criteria of optimization for horticultural regimes in SPGF: Qmax = max [M x (EBI)2/(V x E x T], where M is the crop harvest in terms of total dry biomass in the plant growth system; EBI is the edible biomass index (harvest index), V is volume occupied by the crop; E is the crop light energy supply during growth; T is the crop growth duration. The criterion reflects directly on the consumption of onboard resources for crop production. c2004 COSPAR. Published by Elsevier Ltd. All rights reserved.

  12. Evaluating and optimizing horticultural regimes in space plant growth facilities.

    PubMed

    Berkovich, Y A; Chetirkin, P V; Wheeler, R M; Sager, J C

    2004-01-01

    In designing innovative space plant growth facilities (SPGF) for long duration space flight, various limitations must be addressed including onboard resources: volume, energy consumption, heat transfer and crew labor expenditure. The required accuracy in evaluating on board resources by using the equivalent mass methodology and applying it to the design of such facilities is not precise. This is due to the uncertainty of the structure and not completely understanding the properties of all associated hardware, including the technology in these systems. We present a simple criteria of optimization for horticultural regimes in SPGF: Qmax = max [M x (EBI)2/(V x E x T], where M is the crop harvest in terms of total dry biomass in the plant growth system; EBI is the edible biomass index (harvest index), V is volume occupied by the crop; E is the crop light energy supply during growth; T is the crop growth duration. The criterion reflects directly on the consumption of onboard resources for crop production.

  13. Nutrient composition of strawberry genotypes cultivated in a horticulture farm.

    PubMed

    Hossain, Ashrafi; Begum, Parveen; Salma Zannat, M; Hafizur Rahman, Md; Ahsan, Monira; Islam, Sheikh Nazrul

    2016-05-15

    This article decribes the nutrient composition of four strawberry genotypes cultivated at the Sher-e-Bangla Agriculture University horticulture farm in Dhaka (Bangladesh). AOAC and standard validated methods were employed to analyse the nutrient composition. Protein, fat and ash contents were found to be vary significantly (LSD<0.05), while the variation in moisture (LSD<1.33), dietary fibre (LSD<0.15) and total sugar (LSD<0.09) were found to be insignificant among the genotypes. Vitamin C content ranged from 26.46 mg to 37.77 mg per 100g edible strawberries (LSD<0.060). Amount of carotenoids were found to be very low being in a range of 0.99-3.30 μg per 100g edible fruit. Analysis of mineral revealed that strawberry genotypes contained a wide array of minerals including Ca, Mg, Na, K, P, Mn, Zn, Cu and Fe; most of which varied significantly (LSD<0.05) among the genotypes. Strawberries could be a potential dietary supplement for vitamin C along with minerals, particularly for the children who do not like local fruits, but love to eat the colourful strawberries. PMID:26776020

  14. Grafting: A Technique to Modify Ion Accumulation in Horticultural Crops

    PubMed Central

    Nawaz, Muhammad A.; Imtiaz, Muhammad; Kong, Qiusheng; Cheng, Fei; Ahmed, Waqar; Huang, Yuan; Bie, Zhilong

    2016-01-01

    Grafting is a centuries-old technique used in plants to obtain economic benefits. Grafting increases nutrient uptake and utilization efficiency in a number of plant species, including fruits, vegetables, and ornamentals. Selected rootstocks of the same species or close relatives are utilized in grafting. Rootstocks absorb more water and ions than self-rooted plants and transport these water and ions to the aboveground scion. Ion uptake is regulated by a complex communication mechanism between the scion and rootstock. Sugars, hormones, and miRNAs function as long-distance signaling molecules and regulate ion uptake and ion homeostasis by affecting the activity of ion transporters. This review summarizes available information on the effect of rootstock on nutrient uptake and utilization and the mechanisms involved. Information on specific nutrient-efficient rootstocks for different crops of commercial importance is also provided. Several other important approaches, such as interstocking (during double grafting), inarching, use of plant-growth-promoting rhizobacteria, use of arbuscular mycorrhizal fungi, use of plant growth substances (e.g., auxin and melatonin), and use of genetically engineered rootstocks and scions (transgrafting), are highlighted; these approaches can be combined with grafting to enhance nutrient uptake and utilization in commercially important plant species. Whether the rootstock and scion affect each other's soil microbiota and their effect on the nutrient absorption of rootstocks remain largely unknown. Similarly, the physiological and molecular bases of grafting, crease formation, and incompatibility are not fully identified and require investigation. Grafting in horticultural crops can help reveal the basic biology of grafting, the reasons for incompatibility, sensing, and signaling of nutrients, ion uptake and transport, and the mechanism of heavy metal accumulation and restriction in rootstocks. Ion transporter and miRNA-regulated nutrient

  15. UNIVERSITY OF ILLINOIS SUMMER INSTITUTE FOR TEACHERS OF ORNAMENTAL HORTICULTURE IN THE MIDWESTERN SECTION OF THE UNITED STATES.

    ERIC Educational Resources Information Center

    HEMP, PAUL E.

    A RESEARCH AND DEVELOPMENT PROJECT, DESIGNED TO RETRAIN TEACHERS, DEVELOP ORNAMENTAL HORTICULTURE CURRICULUM MATERIALS, AND STIMULATE THE DEVELOPMENT OF VOCATIONAL ORNAMENTAL HORTICULTURE PROGRAMS IN THE MIDWESTERN UNITED STATES, INCLUDED TRAINING, SERVICE, AND EVALUATION ACTIVITIES. THIRTY TEACHERS SELECTED FROM 75 APPLICANTS ATTENDED A SUMMER…

  16. Agriculture--Horticulture. Kit No. 36. Instructor's Manual [and] Student Learning Activity Guide.

    ERIC Educational Resources Information Center

    Smith, Claudia

    An instructor's manual and student activity guide on horticulture are provided in this set of prevocational education materials which focus on the vocational area of agriculture. (This set of materials is one of ninety-two prevocational education sets arranged around a cluster of seven vocational offerings: agriculture, home economics,…

  17. Winter-injury following horticultural treatments to overcome juvenility in citrus seedlings

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Citrus seedling juvenility delays new hybrid evaluation, slows cultivar release, and slows introgression of new traits. A horticultural program reported to overcome citrus juvenility was tested at the Whitmore Citrus Research Foundation farm (Lake County), using replicated Hirado Buntan x Clementine...

  18. An Introduction to the Sexual Reproduction of Flowering Plants. Ornamental Horticulture I, Lesson Plan No. 5.

    ERIC Educational Resources Information Center

    Ideoka, Keith

    Developed as part of a 90-hour high school course in ornamental horticulture, this 50-minute lesson plan is designed to explain the process of pollination and fertilization of flowering plants. The lesson plan begins with information on the course for which the lesson was designed; equipment and audio-visual aids needed; required student…

  19. Treated sewage effluent (water) potential to be used for horticultural production in Botswana

    NASA Astrophysics Data System (ADS)

    Emongor, V. E.; Ramolemana, G. M.

    Botswana being semi-arid and arid country, the provision of drinking water and water for agricultural production is becoming increasingly scarce and expensive. Measures that can augment the available sources of water or measures that can reduce the demand on potable water should be given serious consideration. Horticulturists have incorporated new technology into many of their production programs, which has enabled them to grow more horticultural crops with less water; however, more effort is needed. Techniques such as drip irrigation, sensors, growing plants with low water requirements, timing and scheduling of irrigation to the growth needs of the plant, mulching, and establishing a minimum water quality standard for horticultural crops must be used to stretch agricultural water supplies. Recycling agricultural water and using treated municipal sewage effluent is a viable option for increasing horticultures’ future water supply in Botswana. Agriculture wastewater and sewage effluents often contain significant quantities of heavy metals and other substances that may be toxic to people but beneficial to horticultural crops. However, before sewage effluent can be used for commercial production of vegetables and fruits, research must be undertaken to determine whether there is accumulation of heavy metals and faecal coliforms in the edible portion of the horticultural produce which may be detrimental to human health 15-20 years later. Research must be undertaken to assess the impact of sewage effluent on soil physical, chemical properties and environment after continued use.

  20. Meeting the Needs of Students Who Plan Careers in Ornamental Horticulture Occupations

    ERIC Educational Resources Information Center

    Simmons, J. C.

    1977-01-01

    Due to increasing urbanization of the area, focus of the vocational agriculture department at Zachary High School, near Baton Rouge, Louisiana, has changed from production agriculture to ornamental horticulture. The area supervisor describes the facilities for student instruction and work experience in the school's greenhouses and grounds. (MF)

  1. Horticulture Mechanics Course Outline. Teacher Education Series, Vol. 15, No. 1t.

    ERIC Educational Resources Information Center

    Grant, Lee P.; And Others

    The document provides 17 outlines of brief instructional units in mechanics, which are intended for incorporation into an existing program of study in ornamental horticulture at the secondary or postsecondary level. To facilitate the flexible use of the outlines, a grid is presented on which seven occupational areas (such as aboriculture,…

  2. Horticulture Materials for Agricultural Education Programs. Core Agricultural Education Curriculum, Central Cluster.

    ERIC Educational Resources Information Center

    Illinois Univ., Urbana. Office of Agricultural Communications and Education.

    This curriculum guide contains five units with relevant problem areas for horticulture. These problem areas have been selected as suggested areas of study to be included in a core curriculum for secondary students enrolled in an agricultural education program. Each problem area includes some or all of the following components: related problem…

  3. Core II Materials for Metropolitan Agriculture/Horticulture Programs. Units G-L.

    ERIC Educational Resources Information Center

    Biondo, Ron; And Others

    This second volume of a 2-volume curriculum guide contains 12 problem areas selected as suggested areas of study to be included in a core curriculum for 10th-grade or second-year students enrolled in a metropolitan agriculture program. The 12 problem areas are divided into 5 units: Growing and Managing Horticultural Crops (4 problem areas),…

  4. ESTABLISHING AND CARING FOR LAWNS AND TURF. HORTICULTURE-SERVICE OCCUPATIONS, MODULE NO. 9.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center for Vocational and Technical Education.

    ONE OF A SERIES DESIGNED TO PREPARE HIGH SCHOOL STUDENTS FOR HORTICULTURE SERVICE OCCUPATIONS, THIS MODULE HAS AS ITS MAJOR OBJECTIVE TO DEVELOP THE ABILITY TO ESTABLISH AND MAINTAIN LAWNS AND TURF. IT WAS DEVELOPED ON THE BASIS OF DATA FROM STATE STUDIES BY A NATIONAL TASK FORCE. SUBJECT MATTER AREAS ARE NEW LAWN ESTABLISHMENT, LAWN MAINTENANCE,…

  5. COMPARISON OF CERTAIN ABILITIES NEEDED BY WORKERS IN LICENSED NURSERIES AND LICENSED ORNAMENTAL HORTICULTURE BUSINESSES.

    ERIC Educational Resources Information Center

    DILLON, ROY D.

    THIS STUDY WAS CONDUCTED TO DETERMINE THE EXTENT TO WHICH WORKERS WITH THE JOB TITLES OF GENERAL DIRECTORS, SALESMEN, SUPERVISORS, AND FIELD WORKERS IN LICENSED NURSERIES NEEDED AGRICULTURALLY ORIENTED KNOWLEDGE OF THE SAME KIND AND LEVEL AS WORKERS IN COMPARABLE JOB TITLES IN ORNAMENTAL HORTICULTURE BUSINESSES. DATA WERE COLLECTED BY PERSONAL…

  6. The Power of Peer Reviewing to Enhance Writing in Horticulture: Greenhouse Management

    ERIC Educational Resources Information Center

    Anderson, Neil O.; Flash, Pamela

    2014-01-01

    Peer review is not included in undergraduate horticultural curricula. Our research objectives in an 8- year study, which ranged from 2000 to 2007 in two sections (2000-2002 non-peer reviewed and 2003-2007 peer-reviewed) of Greenhouse Management students at the University of Minnesota were to determine whether iterative peer reviews would result in…

  7. Second International Symposium on Plant Genetic Resources of Horticultural Crops - Volume I

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The Second International Society for Horticultural Science (ISHS) Symposium on Plant Genetic Resources was sponsored by the Commission on Plant Genetic Resources (PGR), Plant Genebank Management Working Group, and co-sponsored by broad coverage of additional ISHS Sections of Fruits, Vegetables, Orna...

  8. Second International Symposium on Plant Genetic Resources of Horticultural Crops - Volume 2

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The Second International Society for Horticultural Science (ISHS) Symposium on Plant Genetic Resources was sponsored by the Commission on Plant Genetic Resources (PGR), Plant Genebank Management Working Group, and co-sponsored by broad coverage of additional ISHS Sections of Fruits, Vegetables, Orna...

  9. 4-H Horticulture Project Activity Guides. Leader's Guide and Units 1-3.

    ERIC Educational Resources Information Center

    Illinois Univ., Urbana. Cooperative Extension Service.

    This document, concerning the 4-H horticulture project, includes a leader's guide and three youth activity guides. The leader's guide can be used to plan group project meetings that are both fun and educational. Activities can be adapted to various age groups. The leader's guide includes basic information for growing plants indoors and outdoors,…

  10. Larvae of five horticulturally important species of Chrysopodes (Neuroptera, Chrysopidae): shared generic features, descriptions and keys

    PubMed Central

    Silva, Patrícia S.; Tauber, Catherine A.; Albuquerque, Gilberto S.; Tauber, Maurice J.

    2013-01-01

    Abstract An expanded list of generic level larval characteristics is presented for Chrysopodes; it includes a reinterpretation of the mesothoracic and metathoracic structure and setation. Keys, descriptions and images of Semaphoront A (first instar) and Semaphoront B (second and third instars) are offered for identifying five species of Chrysopodes (Chrysopodes) that are commonly reported from horticultural habitats in the Neotropical region. PMID:23653514

  11. Evaluation of Resistance of Horticultural Plants to Destabilizing Effects Based on Analysis of Leaf Reflection Spectra

    NASA Astrophysics Data System (ADS)

    Yushkov, A. N.; Borzykh, N. V.; Butenko, A. I.

    2016-05-01

    The influences of thermal effects and salinization on visible and near-IR reflection spectra of horticultural plant leaves with different drought and salt resistance are examined. An integral criterion for evaluating the susceptibility of the plants to stressors is based on measuring the distance between reflectance curves.

  12. An Analysis of Agriculture and Horticulture Programs at Illinois Public Community Colleges. Accountability Report.

    ERIC Educational Resources Information Center

    Illinois Community Coll. Board, Springfield.

    Prepared as part of a state program review, this report presents results from a review undertaken of all agriculture and horticulture programs at Illinois public community colleges for fiscal year 1995. The first part focuses on the four agricultural programs reviewed: Agricultural Business and Management; Agricultural Production, Workers, and…

  13. Nebraska Vocational Agribusiness Curriculum for City Schools. Horticulture. Agricultural Mechanics. A Curriculum Guide. 11th Grade.

    ERIC Educational Resources Information Center

    Nebraska Univ., Lincoln. Dept. of Agricultural Education.

    Designed for use with high school juniors, this agribusiness curriculum for city schools contains thirty-two units of instruction in the areas of horticulture and agricultural mechanics. Among the units included in the curriculum are (1) Planting Media, (2) Fertilizer, (3) Plant Classification, (4) Turf Grass Management, (5) Landscape Design, (6)…

  14. Primary-care based participatory rehabilitation: users’ views of a horticultural and arts project

    PubMed Central

    Barley, Elizabeth A; Robinson, Susan; Sikorski, Jim

    2012-01-01

    Background Participation in horticulture and arts may improve wellbeing in those with mental and physical illness. Aim To conduct an in-depth exploration of the views and experience of participants of a primary-care-based horticultural and participatory arts rehabilitation project (Sydenham Garden). Design and setting Qualitative interview study of a primary-care-based horticultural and participatory arts rehabilitation project in South London. Method Semi-structured interviews were conducted with 16 participants (referred to as ‘coworkers’) of Sydenham Garden. Seven were female. Participants were aged between 38 and 91 years and had a range of severe mental and physical health problems; most had depression. The interviews were analysed using constant comparison and thematic analysis. Results Data were overwhelmingly positive concerning participation. Coworkers considered participation in the project to promote wellbeing by providing purposeful and enjoyable activity and interest, improving mood and self-perceptions, and providing an escape from life’s pressures. Being outdoors was considered therapeutic. The most-valued aspect of participation was the social contact derived as a result of it. Many of the coworkers who were interviewed developed transferable skills, including nationally recognised qualifications, which they valued highly. Conclusion Delivery of horticultural therapy and participatory arts is a feasible model for improving wellbeing in patients in primary care who have serious illness. Longer-term studies are needed to address what happens to people after leaving such projects. PMID:22520790

  15. Effects of Horticultural Therapy on Psychosocial Health in Older Nursing Home Residents: A Preliminary Study.

    PubMed

    Chen, Yuh-Min; Ji, Jeng-Yi

    2015-09-01

    This preliminary study examined the effect of horticultural therapy on psychosocial health in older nursing home residents. A combined quantitative and qualitative design was adopted. Convenience sampling was used to recruit 10 older residents from a nursing home in Taichung, Taiwan. Participants joined a 10-week indoor horticultural program once a week, with each session lasting for about 1.5 hours. A single-group design with multiple measurements was adopted for the quantitative component of this study. Interviews held 1-2 days before the intervention (T0) were used to collect baseline data. The two outcome variables of this study, depression and loneliness, were reassessed during the 5th (T1) and 10th (T2) weeks of the intervention. Generalized estimating equations were used to test the mean differences among T0, T1, and T2 measures. After the 10-week program, qualitative data were collected by asking participants to share their program participation experiences. The results of generalized estimating equation showed significant improvements in depression and loneliness. Four categories emerged from the qualitative data content analysis: social connection, anticipation and hope, sense of achievement, and companionship. Given the beneficial effects of the horticulture therapy, the inclusion of horticultural activities in nursing home activity programs is recommended. PMID:25534575

  16. Evaluation of biochar-anaerobic potato digestate mixtures as renewable components of horticultural potting media

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Various formulations are used in horticultural potting media, with sphagnum peat moss, vermiculite and perlite currently among the most common components. We are examining a dried anaerobic digestate remaining after the fermentation of potato processing wastes to replace organic components such as p...

  17. The risk of cryptorchidism among sons of women working in horticulture in Denmark: a cohort study

    PubMed Central

    2011-01-01

    Background Androgens are crucial for normal testicular descent. Studies show that some pesticides have estrogenic or antiandrogenic effects, and that female workers exposed to pesticides have increased risk of having a boy with cryptorchidism. The main objective of the present study was to investigate whether pregnant women exposed to pesticides due to their work in horticulture experience excess risk of having sons with cryptorchidism. Methods We conducted a cohort study of pregnant women working in horticulture using four cohorts including one cohort established with data from the departments of occupational medicine in Jutland and Funen and three existing mother-child cohorts (n = 1,468). A reference group was established from the entire Danish population of boys born in the period of 1986-2007 (n = 783,817). Nationwide Danish health registers provided information on birth outcome, cryptorchidism diagnosis and orchiopexy. The level of occupational exposure to pesticides was assessed by expert judgment blinded towards outcome status. Risk of cryptorchidism among exposed horticulture workers compared to the background population and to unexposed horticulture workers was assessed by Cox regression models. Results Pesticide exposed women employed in horticulture had a hazard ratio (HR) of having cryptorchid sons of 1.39 (95% CI 0.84; 2.31) and a HR of orchiopexy of 1.34 (0.72; 2.49) compared to the background population. Analysis divided into separate cohorts revealed a significantly increased risk of cryptorchidism in cohort 2: HR 2.58 (1.07;6.20) and increased risk of orchiopexy in cohort 4: HR 2.76 (1.03;7.35), but no significant associations in the other cohorts. Compared to unexposed women working in horticulture, pesticide exposed women had a risk of having sons with cryptorchidism of 1.34 (0.30; 5.96) and of orchiopexy of 1.93 (0.24;15.4). Conclusions The data are compatible with a slightly increased risk of cryptorchidism in sons of women exposed to

  18. Reduction of energy usage in postharvest horticulture through management of ethylene.

    PubMed

    Wills, Ron B H; Golding, John B

    2015-05-01

    Cool chain management is the preferred technology to extend the postharvest life of horticultural produce, but with rising energy costs and community pressure to reduce greenhouse gas emissions, there is a need to use less energy-intensive technologies. Minimising the level of ethylene around horticultural produce inhibits ripening and senescence and therefore has the potential to reduce the use of refrigeration. The long-distance transport of bananas within Australia and from Central America to Europe is used as a case study to show that the need for refrigeration could be reduced if the appropriate concentrations of ethylene were maintained around fruit during transit. Data are also presented to show a similar benefit of ethylene control with green beans, as well as another study showing that apples treated with the ethylene action inhibitor 1-methylcyclopropene could be stored at a higher temperature without loss of quality to the consumer. The range of technologies available to manage ethylene levels is discussed. PMID:25257862

  19. Soil microbial community analysis of between no-till and tillage in a controlled horticultural field.

    PubMed

    Yang, Seung Koo; Kim, Min Keun; Seo, Youn Won; Choi, Kyung Ju; Lee, Seong Tae; Kwak, Youn-Sig; Lee, Young Han

    2012-04-01

    The present study evaluated the changes of soil microbial communities that were subjected to no-till and compared the results to those subject to tillage for organic farming in a controlled horticultural field by fatty acid methyl ester. Fungi (P < 0.001), gram-positive bacteria (P < 0.001), arbuscular mycorrhizal fungi (P < 0.01), and actinomycetes (P < 0.01) in the no-till soils were significantly larger than those in the tillage soils. The no-till in the subsoil had a significantly lower ratio of cy17:0 to 16:1ω7c compared to that of tillage, indicating that microbial stress decreased because the soils were not disturbed (P < 0.05). Fungi should be considered as a potential factor responsible for the obvious microbial community differentiation that was observed between the no-till and tillage areas in a controlled horticultural field.

  20. Kasza: design of a closed water system for the greenhouse horticulture.

    PubMed

    van der Velde, Raphaël T; Voogt, Wim; Pickhardt, Pieter W

    2008-01-01

    The need for a closed and sustainable water system in greenhouse areas is stimulated by the implementation in the Netherlands of the European Framework Directive. The Dutch national project Kasza: Design of a Closed Water System for the Greenhouse Horticulture will provide information how the water system in a greenhouse horticulture area can be closed. In this paper the conceptual design of two systems to close the water cycle in a greenhouse area is described. The first system with reverse osmosis system can be used in areas where desalination is required in order to be able to use the recycle water for irrigation of all crops. The second system with advanced oxidation using UV and peroxide can be applied in areas with more salt tolerant crops and good (low sodium) water sources for irrigation. Both systems are financially feasible in new greenhouse areas with substantial available recycle water.

  1. Reduction of energy usage in postharvest horticulture through management of ethylene.

    PubMed

    Wills, Ron B H; Golding, John B

    2015-05-01

    Cool chain management is the preferred technology to extend the postharvest life of horticultural produce, but with rising energy costs and community pressure to reduce greenhouse gas emissions, there is a need to use less energy-intensive technologies. Minimising the level of ethylene around horticultural produce inhibits ripening and senescence and therefore has the potential to reduce the use of refrigeration. The long-distance transport of bananas within Australia and from Central America to Europe is used as a case study to show that the need for refrigeration could be reduced if the appropriate concentrations of ethylene were maintained around fruit during transit. Data are also presented to show a similar benefit of ethylene control with green beans, as well as another study showing that apples treated with the ethylene action inhibitor 1-methylcyclopropene could be stored at a higher temperature without loss of quality to the consumer. The range of technologies available to manage ethylene levels is discussed.

  2. Current and potential trade in horticultural products irradiated for phytosanitary purposes

    NASA Astrophysics Data System (ADS)

    Bustos-Griffin, Emilia; Hallman, Guy J.; Griffin, Robert L.

    2012-08-01

    The current status of trade in horticultural products irradiated for phytosanitary purposes is examined, including trends, strengths and weaknesses. A strategy is proposed to take advantage of the best future opportunities for increasing trade in irradiated horticultural products by identifying best possibilities for expanding both the number and volume of commodities for irradiation and then applying appropriate business criteria in a general analysis of the commodities, commercial scenarios, and geographic regions where the greatest potential exists for expansion. The results show that fresh fruits such as mango, papaya, citrus, grapes, and vegetables such as tomatoes, onions, asparagus, garlic, and peppers from Asia and the Americas show the greatest potential. Substantial opportunities for additional growth exist, especially as regulatory conditions become more favorable.

  3. Characterization and evaluation of five jaboticaba accessions at the subtropical horticulture research station in Miami, Florida

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Fruit of five Jaboticaba (Myrciaria caulifloria) cultivars ‘MC-05-06’, ‘MC-05-14’, ‘MC-05-12’, ‘MC-06-15,’ and ‘MC-06-14’ were evaluated and characterized at the National Germplasm Repository, Subtropical horticulture Research Station (SHRS) Miami, Florida. Thirty fruits were harvested from clona...

  4. Investigation of 10 herbicides in surface waters of a horticultural production catchment in southeastern Australia.

    PubMed

    Allinson, Graeme; Bui, AnhDuyen; Zhang, Pei; Rose, Gavin; Wightwick, Adam M; Allinson, Mayumi; Pettigrove, Vincent

    2014-10-01

    Herbicides are regularly applied in horticultural production systems and may migrate off-site, potentially posing an ecological risk to surface waterways. However, few studies have investigated the levels and potential ecotoxicological impact of herbicides in horticultural catchments in southern Australia. This study investigated the presence of 10 herbicides at 18 sites during a 5-month period in horticulturally important areas of the Yarra Valley in southeastern Australia. Seven of the 10 herbicides were detected in the streams, in 39 % of spot water samples, in 25 % of surface sediment samples, and in >70 % of the passive sampler systems deployed. Few samples contained residues of ≥2 herbicides. Simazine was the herbicide most frequently detected in water, sediment, and passive sampler samples and had the highest concentrations in water (0.67 μg/L) and sediment (260 μg/kg dry weight). Generally the concentrations of the herbicides detected were several orders of magnitude lower than reported ecotoxicological effect values, including those for aquatic plants and algae, suggesting that concentrations of individual chemicals in the catchment were unlikely to pose an ecological risk. However, little is known about the combined effects of simultaneous, low-level exposure of multiple herbicides of the same mode of action on Australian aquatic organisms nor their contribution when found in mixtures with other pesticides. Further research is required to adequately assess the risk of pesticides in Victorian aquatic environments. PMID:24935816

  5. Wastewater treatment by a modular, domestic-scale reedbed system for safe horticultural irrigation.

    PubMed

    Derry, Chris; Maheshwari, Basant

    2015-12-15

    The aim of the study was to assess the sequential treatment performance of a commercial, domestic-scale modular reedbed system intended to provide safe horticultural irrigation water. Previously only mechanical treatment systems involving forced aeration with subsequent disinfection, usually by tablet-chlorination, had been accredited in Australia. The modular design of the hybrid, subsurface-flow reedbed system offered 5 control points where monitoring and management of the treatment train could be carried out. Ten chemical parameters (chemical and biochemical oxygen demand, total organic carbon, total Kjeldahl nitrogen, ammonia nitrogen, nitrite nitrogen, nitrate nitrogen, total nitrogen, dissolved oxygen percentage saturation and suspended solids) and 4 microbial parameters (total coliform, Escherichia coli, enterococci and Clostridium perfringens) reached satisfactory levels as a result of the treatment process. Health requirements for safe horticultural irrigation were met by the outlet of the second reedbed, providing a high level of treatment-backup capacity in terms of the remaining 2 reedbeds. This suggested that chlorination was a redundant backup precaution in treating irrigation water to the acceptable regional guideline level for all horticultural uses, including the spray irrigation of salad crops eaten raw.

  6. Co-composting of horticultural waste with fruit peels, food waste, and soybean residues.

    PubMed

    Choy, Sing Ying; Wang, Ke; Qi, Wei; Wang, Ben; Chen, Chia-Lung; Wang, Jing-Yuan

    2015-01-01

    Horticultural waste was co-composted with fruit peels, food waste, and soybean residues individually to evaluate the effects of these easily available organic wastes in Singapore on the composting process and product quality. Each co-composting material was mixed with horticultural waste in the wet weight ratio of 1:1 and composted for 46 days. Results showed that all co-composting materials accelerated the degradation of total carbon and resulted in higher nutrients of nitrogen (N), phosphorous (P), and potassium (K) in the final product compared with horticultural waste alone. Mixture with fruit peels achieved the fastest total carbon loss; however, did not reach the minimum required temperature for pathogen destruction. The end product was found to be the best source for K and had a higher pH that could be used for the remediation of acidic soil. Food waste resulted in the highest available nitrate (NO3-N) content in the end product, but caused high salt content, total coliforms, and slower total carbon loss initially. Soybean residues were found to be the best co-composting material to produce compost with high N, P, and K when compared with other materials due to the highest temperature, fastest total carbon loss, fastest reduction in C/N ratio, and best conservation of nutrients.

  7. Co-composting of horticultural waste with fruit peels, food waste, and soybean residues.

    PubMed

    Choy, Sing Ying; Wang, Ke; Qi, Wei; Wang, Ben; Chen, Chia-Lung; Wang, Jing-Yuan

    2015-01-01

    Horticultural waste was co-composted with fruit peels, food waste, and soybean residues individually to evaluate the effects of these easily available organic wastes in Singapore on the composting process and product quality. Each co-composting material was mixed with horticultural waste in the wet weight ratio of 1:1 and composted for 46 days. Results showed that all co-composting materials accelerated the degradation of total carbon and resulted in higher nutrients of nitrogen (N), phosphorous (P), and potassium (K) in the final product compared with horticultural waste alone. Mixture with fruit peels achieved the fastest total carbon loss; however, did not reach the minimum required temperature for pathogen destruction. The end product was found to be the best source for K and had a higher pH that could be used for the remediation of acidic soil. Food waste resulted in the highest available nitrate (NO3-N) content in the end product, but caused high salt content, total coliforms, and slower total carbon loss initially. Soybean residues were found to be the best co-composting material to produce compost with high N, P, and K when compared with other materials due to the highest temperature, fastest total carbon loss, fastest reduction in C/N ratio, and best conservation of nutrients. PMID:25650141

  8. Polyethylene film incorporation into the horticultural soil of small periurban production units in Argentina.

    PubMed

    Ramos, Laura; Berenstein, Giselle; Hughes, Enrique A; Zalts, Anita; Montserrat, Javier M

    2015-08-01

    Horticulture makes intensive use of soil and extensive use of polyethylene (PE) sheeting and pesticides, producing an environment where the dynamics between soil and plastics can affect pesticide fate. We have determined that the presence of plastic residues in the horticultural soil of small production units equals 10% of the soil area, being meso and macro-sections the predominant fragment sizes. All soil samples were taken from different plots located in Cuartel V, Moreno district, in the suburbs of Buenos Aires city, Argentina. Laboratory experiments were conducted to see the relations among pesticide, soil and PE film. Endosulfan recovery from LDPE films (25μm and 100μm) was studied, observing evidence that indicated migration to the inside of the plastic matrix. To further analyze the dynamics of pesticide migration to soil and atmosphere, experiments using chlorpyrifos, procymidone and trifluralin were performed in soil-plastic-atmosphere microenvironments, showing that up to 24h significant amounts of pesticides moved away from the PE film. To determine whether PE residues could act as potential pesticide collector in soil, column elution experiments were done using chlorpyrifos, procymidone and trifluralin. Results showed an important pesticide accumulation in the mulch film (584μg-2284μg pesticide/g plastic) compared to soil (13μg-32μg pesticide/g soil). Finally, chemical and photochemical degradation of deltamethrin adsorbed in PE film was studied, finding a protective effect on hydrolysis but no protective effect on photodegradation. We believe that a deeper understanding of the dynamics among soil, plastic and pesticides in horticultural productive systems may contribute to alert for the implications of PE use for plastic sheeting.

  9. Japanese plums (Prunus salicina Lindl.) and phytochemicals--breeding, horticultural practice, postharvest storage, processing and bioactivity.

    PubMed

    Fanning, Kent J; Topp, Bruce; Russell, Dougal; Stanley, Roger; Netzel, Michael

    2014-08-01

    Previous reviews of plum phytochemical content and health benefits have concentrated on the European plum, Prunus domestica L. However, the potential bioactivity of red- and dark red-fleshed Japanese plums, Prunus salicina Lindl., so-called blood plums, appears to warrant a significant increase in exposure, as indicated in a recent review of the whole Prunus genus. Furthermore, Japanese plums are the predominant plum produced on an international basis. In this review the nutrient and phytochemical content, breeding, horticultural practice, postharvest treatment and processing as well as bioactivity (emphasising in vivo studies) of Japanese plum are considered, with a focus on the anthocyanin content that distinguishes the blood plums.

  10. Light-emitting diode technology status and directions: Opportunities for horticultural lighting

    DOE PAGES

    Tsao, Jeffrey Y.; Pattison, P. Morgan; Krames, Michael R.

    2016-01-01

    Here, light-emitting diode (LED) technology has advanced rapidly over the last decade, primarily driven by display and general illumination applications ("solid-state lighting (SSL) for humans"). These advancements have made LED lighting technically and economically advantageous not only for these applications, but also, as an indirect benefit, for adjacent applications such as horticultural lighting ("SSL for plants"). Moreover, LED technology has much room for continued improvement. In the near-term, these improvements will continue to be driven by SSL for humans (with indirect benefit to SSL for plants), the most important of which can be anticipated.

  11. Nitrification of leachates from manure composting under field conditions and their use in horticulture.

    PubMed

    Cáceres, Rafaela; Magrí, Albert; Marfà, Oriol

    2015-10-01

    This work aimed to demonstrate the feasibility of nitrification applied to the treatment of leachates formed during composting of cattle and pig manure in order to promote their further use as liquid fertilizer in horticulture. Nitrification trials were successfully conducted in summer and winter seasons under Mediterranean climate conditions. Subsequently, effect of using the nitrified effluents as nutritive solution in the fertigation of lettuce (Lactuca sativa L.) was assessed in terms of productivity and nutrient uptake. Similar productivities were obtained when using the nitrified effluents and a standard nutritive solution. However, results also evidenced high nutrient uptake, which indicates that dosage should be adjusted to culture requirements. PMID:26239938

  12. Nitrification of leachates from manure composting under field conditions and their use in horticulture.

    PubMed

    Cáceres, Rafaela; Magrí, Albert; Marfà, Oriol

    2015-10-01

    This work aimed to demonstrate the feasibility of nitrification applied to the treatment of leachates formed during composting of cattle and pig manure in order to promote their further use as liquid fertilizer in horticulture. Nitrification trials were successfully conducted in summer and winter seasons under Mediterranean climate conditions. Subsequently, effect of using the nitrified effluents as nutritive solution in the fertigation of lettuce (Lactuca sativa L.) was assessed in terms of productivity and nutrient uptake. Similar productivities were obtained when using the nitrified effluents and a standard nutritive solution. However, results also evidenced high nutrient uptake, which indicates that dosage should be adjusted to culture requirements.

  13. Object oriented classification of high resolution data for inventory of horticultural crops

    NASA Astrophysics Data System (ADS)

    Hebbar, R.; Ravishankar, H. M.; Trivedi, S.; Subramoniam, S. R.; Uday, R.; Dadhwal, V. K.

    2014-11-01

    High resolution satellite images are associated with large variance and thus, per pixel classifiers often result in poor accuracy especially in delineation of horticultural crops. In this context, object oriented techniques are powerful and promising methods for classification. In the present study, a semi-automatic object oriented feature extraction model has been used for delineation of horticultural fruit and plantation crops using Erdas Objective Imagine. Multi-resolution data from Resourcesat LISS-IV and Cartosat-1 have been used as source data in the feature extraction model. Spectral and textural information along with NDVI were used as inputs for generation of Spectral Feature Probability (SFP) layers using sample training pixels. The SFP layers were then converted into raster objects using threshold and clump function resulting in pixel probability layer. A set of raster and vector operators was employed in the subsequent steps for generating thematic layer in the vector format. This semi-automatic feature extraction model was employed for classification of major fruit and plantations crops viz., mango, banana, citrus, coffee and coconut grown under different agro-climatic conditions. In general, the classification accuracy of about 75-80 per cent was achieved for these crops using object based classification alone and the same was further improved using minimal visual editing of misclassified areas. A comparison of on-screen visual interpretation with object oriented approach showed good agreement. It was observed that old and mature plantations were classified more accurately while young and recently planted ones (3 years or less) showed poor classification accuracy due to mixed spectral signature, wider spacing and poor stands of plantations. The results indicated the potential use of object oriented approach for classification of high resolution data for delineation of horticultural fruit and plantation crops. The present methodology is applicable at

  14. Determinants of recycling common types of plastic product waste in environmental horticulture industry: The case of Georgia.

    PubMed

    Meng, Ting; Klepacka, Anna M; Florkowski, Wojciech J; Braman, Kristine

    2016-02-01

    Environmental horticulture firms provide a variety of commercial/residential landscape products and services encompassing ornamental plant production, design, installation, and maintenance. The companies generate tons of waste including plastic containers, trays, and greenhouse/field covers, creating the need to reduce and utilize plastic waste. Based on survey data collected in Georgia in 2013, this paper investigates determinants of the environmental horticulture firms' recycling decision (plastic containers, flats, and greenhouse poly). Our findings indicate that the decision to discard vs. recycle plastic containers, flats, and greenhouse poly is significantly influenced by firm scope, size, location, and partnership with recycling providers, as well as whether recycling providers offer additional waste pickup services. Insights from this study are of use to local governments and environmental organizations interested in increasing horticultural firm participation in recycling programs and lowering the volume of plastic destined for landfills.

  15. Determinants of recycling common types of plastic product waste in environmental horticulture industry: The case of Georgia.

    PubMed

    Meng, Ting; Klepacka, Anna M; Florkowski, Wojciech J; Braman, Kristine

    2016-02-01

    Environmental horticulture firms provide a variety of commercial/residential landscape products and services encompassing ornamental plant production, design, installation, and maintenance. The companies generate tons of waste including plastic containers, trays, and greenhouse/field covers, creating the need to reduce and utilize plastic waste. Based on survey data collected in Georgia in 2013, this paper investigates determinants of the environmental horticulture firms' recycling decision (plastic containers, flats, and greenhouse poly). Our findings indicate that the decision to discard vs. recycle plastic containers, flats, and greenhouse poly is significantly influenced by firm scope, size, location, and partnership with recycling providers, as well as whether recycling providers offer additional waste pickup services. Insights from this study are of use to local governments and environmental organizations interested in increasing horticultural firm participation in recycling programs and lowering the volume of plastic destined for landfills. PMID:26626810

  16. Development of Procedures for Assessing the Impact of Vocational Education Research and Development on Vocational Education (Project IMPACT). Volume 4--A Case Study of Illinois Projects in Horticulture.

    ERIC Educational Resources Information Center

    Hook, Colin; Ethridge, James

    As part of Project IMPACT's efforts to identify and develop procedures for complying with the impact requirements of Public Law 94-482, a case study was made of Illinois Projects in Horticulture. Fourteen horticulture projects in high schools and junior colleges were discovered through a previous study, personal interviews with two University of…

  17. Growing media constituents determine the microbial nitrogen conversions in organic growing media for horticulture.

    PubMed

    Grunert, Oliver; Reheul, Dirk; Van Labeke, Marie-Christine; Perneel, Maaike; Hernandez-Sanabria, Emma; Vlaeminck, Siegfried E; Boon, Nico

    2016-05-01

    Vegetables and fruits are an important part of a healthy food diet, however, the eco-sustainability of the production of these can still be significantly improved. European farmers and consumers spend an estimated €15.5 billion per year on inorganic fertilizers and the production of N-fertilizers results in a high carbon footprint. We investigated if fertilizer type and medium constituents determine microbial nitrogen conversions in organic growing media and can be used as a next step towards a more sustainable horticulture. We demonstrated that growing media constituents showed differences in urea hydrolysis, ammonia and nitrite oxidation and in carbon dioxide respiration rate. Interestingly, mixing of the growing media constituents resulted in a stimulation of the function of the microorganisms. The use of organic fertilizer resulted in an increase in amoA gene copy number by factor 100 compared to inorganic fertilizers. Our results support our hypothesis that the activity of the functional microbial community with respect to nitrogen turnover in an organic growing medium can be improved by selecting and mixing the appropriate growing media components with each other. These findings contribute to the understanding of the functional microbial community in growing media and its potential role towards a more responsible horticulture. PMID:27005434

  18. CmMDb: a versatile database for Cucumis melo microsatellite markers and other horticulture crop research.

    PubMed

    Bhawna; Chaduvula, Pavan K; Bonthala, Venkata S; Manjusha, Verma; Siddiq, Ebrahimali A; Polumetla, Ananda K; Prasad, Gajula M N V

    2015-01-01

    Cucumis melo L. that belongs to Cucurbitaceae family ranks among one of the highest valued horticulture crops being cultivated across the globe. Besides its economical and medicinal importance, Cucumis melo L. is a valuable resource and model system for the evolutionary studies of cucurbit family. However, very limited numbers of molecular markers were reported for Cucumis melo L. so far that limits the pace of functional genomic research in melon and other similar horticulture crops. We developed the first whole genome based microsatellite DNA marker database of Cucumis melo L. and comprehensive web resource that aids in variety identification and physical mapping of Cucurbitaceae family. The Cucumis melo L. microsatellite database (CmMDb: http://65.181.125.102/cmmdb2/index.html) encompasses 39,072 SSR markers along with its motif repeat, motif length, motif sequence, marker ID, motif type and chromosomal locations. The database is featured with novel automated primer designing facility to meet the needs of wet lab researchers. CmMDb is a freely available web resource that facilitates the researchers to select the most appropriate markers for marker-assisted selection in melons and to improve breeding strategies. PMID:25885062

  19. Impact of intensive horticulture practices on groundwater content of nitrates, sodium, potassium, and pesticides.

    PubMed

    Melo, Armindo; Pinto, Edgar; Aguiar, Ana; Mansilha, Catarina; Pinho, Olívia; Ferreira, Isabel M P L V O

    2012-07-01

    A monitoring program of nitrate, nitrite, potassium, sodium, and pesticides was carried out in water samples from an intensive horticulture area in a vulnerable zone from north of Portugal. Eight collecting points were selected and water-analyzed in five sampling campaigns, during 1 year. Chemometric techniques, such as cluster analysis, principal component analysis (PCA), and discriminant analysis, were used in order to understand the impact of intensive horticulture practices on dug and drilled wells groundwater and to study variations in the hydrochemistry of groundwater. PCA performed on pesticide data matrix yielded seven significant PCs explaining 77.67% of the data variance. Although PCA rendered considerable data reduction, it could not clearly group and distinguish the sample types. However, a visible differentiation between the water samples was obtained. Cluster and discriminant analysis grouped the eight collecting points into three clusters of similar characteristics pertaining to water contamination, indicating that it is necessary to improve the use of water, fertilizers, and pesticides. Inorganic fertilizers such as potassium nitrate were suspected to be the most important factors for nitrate contamination since highly significant Pearson correlation (r = 0.691, P < 0.01) was obtained between groundwater nitrate and potassium contents. Water from dug wells is especially prone to contamination from the grower and their closer neighbor's practices. Water from drilled wells is also contaminated from distant practices.

  20. Windrow composting as horticultural waste management strategy - A case study in Ecuador.

    PubMed

    Gavilanes-Terán, Irene; Jara-Samaniego, Janneth; Idrovo-Novillo, Julio; Bustamante, Ma Angeles; Moral, Raúl; Paredes, Concepción

    2016-02-01

    In Ecuador, enormous quantities of vegetable wastes are produced annually from the horticultural industries. Composting can be a feasible treatment to stabilise horticultural wastes and, thus, to improve their properties for use as organic fertilisers. In this study, two different piles were prepared, using laying hen manure and sawdust mixed with broccoli or tomato waste, respectively, and composted by the turned windrow composting system. Throughout the composting process, the temperature of the mixtures was monitored and physico-chemical and chemical properties and the degree of maturity were determined. Also, principal component analysis was used to interpret the data set of compost characteristics. In both piles, the temperature exceeded 55°C for more than 2weeks, which ensured maximum pathogen reduction. Organic matter (OM) losses followed a first-order kinetic equation in both piles. The final composts showed a suitable degree of stability and maturity and an absence of phytotoxins, as observed in the evolution and final values of the total organic carbon/total nitrogen ratio (Corg/NT<20), water-soluble organic carbon (Cw<1.7%), germination index (GI>50%) and cation exchange capacity (CEC>67meq (100g OM)(-1)). As well, the evolution of different humification indexes during composting was a good indicator of the OM humification process. The type of vegetable waste used influenced OM and NT mineralisation and the final properties of the composts, showing the mixture with tomato waste a higher fertilising capacity and less environmental problems.

  1. Extending the uses of bioplastic granules for the application of Trichoderma biocontrol isolates in flori/horticulture and turf grass.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Bioplastic materials are gaining increasing interest in a variety of different industrial and domestic applications. Beside its usage as mulching films and plant clips in horticulture, no other agricultural applications have been proposed. In 2009 we demonstrated that granules made of the bioplastic...

  2. Extending the Use of Bioplastic Granules for the Application of Trichoderma Biocontrol Isolates in Flori/Horticulture and Turfgrass

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Bioplastic materials are gaining increasing interest in a variety of different industrial and domestic applications. Beside its usage as mulching films and plant clips in horticulture, no other agricultural applications have been proposed. In 2009 we demonstrated that granules made of the bioplastic...

  3. The Melwood Manual: A Planning and Operations Manual for Horticultural Training and Work Co-op Programs.

    ERIC Educational Resources Information Center

    Melwood Horticultural Training Center, Inc., Upper Marlboro, MD.

    This manual is intended as a resource for anyone involved in planning, developing, and/or operating a horticultural training or work co-op program for the handicapped. Following an introductory chapter, the manual is divided into three parts with the greatest weight given to the second part. Part I elaborates on development of the horticulture…

  4. Field Testing of the Greenhouse Production Section of a Horticulture Laboratory Record Book for Pennsylvania. Final Report.

    ERIC Educational Resources Information Center

    Rhodes, Kenneth B.

    A study was conducted to develop and field test a greenhouse production record book and unit of instruction for growing potted chrysanthemums. Twenty high schools in Pennsylvania with horticulture departments formed the population for the study. The twenty schools were randomly assigned to four treatment levels: (1) five classes received the…

  5. Physical and chemical characterization of biochars produced from coppiced wood of thirteen tree species for use in horticultural substrates

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Seven-year-old coppiced shoots from thirteen species of native and non-native trees and shrubs were harvested, dried, and were pyrolyzed to produce biochars for potential use in horticultural substrates. Several chemical and physical characteristics of the biochars were determined. There were slight...

  6. The Effects of Task Instruction Sheets on the Performance of Vocational Horticulture Students. Summary of Research, 29.

    ERIC Educational Resources Information Center

    Scanlon, Dennis C.; Newcomb, L. H.

    A study investigated the effect that task instruction sheets had on the performance of vocational horticulture students when being taught a unit on poinsettia production. Using a post-test only control group design, researchers administered a 35-item multiple choice test on poinsettia production to 207 students in 12 randomly selected eleventh…

  7. The CAP Approach to Modifying Vocational Programs for Handicapped Students. Vol. 1: Agriculture with an Example in Horticulture.

    ERIC Educational Resources Information Center

    Tindall, Lloyd W.; Morehouse, Nancy

    This combination teaching guide and student workbook, the first in a five-volume series (see note), presents an approach to teaching horticulture for handicapped students. The guide discusses a functional approach to modifying agriculture programs to accomodate cognitive, affective, and psychomotor (CAP) domain handicaps. The discussion centers on…

  8. Agriculture--Ornamental Horticulture. Building Model Greenhouse and Growing Plants. Kit No. 41. Instructor's Manual [and] Student Learning Activity Guide.

    ERIC Educational Resources Information Center

    Carter, Wesley

    An instructor's manual and student activity guide on building a model greenhouse and growing plants are provided in this set of prevocational education materials which focuses on the vocational area of agriculture (ornamental horticulture). (This set of materials is one of ninety-two prevocational education sets arranged around a cluster of seven…

  9. Morphological and physio-chemical characterization of five Canistel accessions at the subtropical horticulture research station in Miami Florida

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Fruit of five canistel cultivars, 'Fairchild','E11', 'Keisau', 'TREC#3' and 'TREC 3680' were evaluated and characterized at the National Germplasm Repository, Subtropical horticulture Research Station (SHRS) Miami, Florida. Thirty fruits were harvested from clonal accessions during July and August, ...

  10. USING AND CARING FOR ORNAMENTAL PLANT MATERIALS AND LANDSCAPE STRUCTURES. HORTICULTURE-SERVICE OCCUPATIONS, MODULE NO. 11.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center for Vocational and Technical Education.

    ONE OF A SERIES DESIGNED TO PREPARE HIGH SCHOOL STUDENTS FOR HORTICULTURE-SERVICE OCCUPATIONS, THIS MODULE HAS AS ITS MAJOR OBJECTIVE TO DEVELOP THE ABILITIES NEEDED TO USE, CARE FOR, AND MAINTAIN ORNAMENTAL PLANT MATERIALS AND LANDSCAPE STRUCTURES. IT WAS DEVELOPED ON THE BASIS OF DATA FROM STATE STUDIES BY A NATIONAL TASK FORCE. SUBJECT MATTER…

  11. Institutional Effectiveness Assessment Process, 1993-94 Executive Summary. Hospitality and Service Occupations Division, Landscape and Environmental Horticulture Department.

    ERIC Educational Resources Information Center

    South Seattle Community Coll., Washington.

    A study was conducted to determine current and former students' and local employers' satisfaction with South Seattle Community College's (SSCC's) Landscape and Environmental Horticulture Department. Specifically, the study gathered data on four outcomes: that students receive an education allowing them to meet goals; that students be satisfied…

  12. The influence of contextual teaching with the problem solving method on students' knowledge and attitudes toward horticulture, science, and school

    NASA Astrophysics Data System (ADS)

    Whitcher, Carrie Lynn

    2005-08-01

    Adolescence is marked with many changes in the development of higher order thinking skills. As students enter high school they are expected to utilize these skills to solve problems, become abstract thinkers, and contribute to society. The goal of this study was to assess horticultural science knowledge achievement and attitude toward horticulture, science, and school in high school agriculture students. There were approximately 240 high school students in the sample including both experimental and control groups from California and Washington. Students in the experimental group participated in an educational program called "Hands-On Hortscience" which emphasized problem solving in investigation and experimentation activities with greenhouse plants, soilless media, and fertilizers. Students in the control group were taught by the subject matter method. The activities included in the Hands-On Hortscience curriculum were created to reinforce teaching the scientific method through the context of horticulture. The objectives included evaluating whether the students participating in the Hands-On Hortscience experimental group benefited in the areas of science literacy, data acquisition and analysis, and attitude toward horticulture, science, and school. Pre-tests were administered in both the experimental and control groups prior to the research activities and post-tests were administered after completion. The survey questionnaire included a biographical section and attitude survey. Significant increases in hortscience achievement were found from pre-test to post-test in both control and experimental study groups. The experimental treatment group had statistically higher achievement scores than the control group in the two areas tested: scientific method (p=0.0016) and horticulture plant nutrition (p=0.0004). In addition, the students participating in the Hands-On Hortscience activities had more positive attitudes toward horticulture, science, and school (p=0

  13. Advantages of diffuse light for horticultural production and perspectives for further research

    PubMed Central

    Li, Tao; Yang, Qichang

    2015-01-01

    Plants use diffuse light more efficiently than direct light, which is well established due to diffuse light penetrates deeper into the canopy and photosynthetic rate of a single leaf shows a non-linear response to the light flux density. Diffuse light also results in a more even horizontal and temporal light distribution in the canopy, which plays substantial role for crop photosynthesis enhancement as well as production improvement. Here we show some of the recent findings about the effect of diffuse light on light distribution over the canopy and its direct and indirect effects on crop photosynthesis and plant growth, and suggest some perspectives for further research which could strengthen the scientific understanding of diffuse light modulate plant processes and its application in horticultural production. PMID:26388890

  14. GiNA, an Efficient and High-Throughput Software for Horticultural Phenotyping

    PubMed Central

    Diaz-Garcia, Luis; Covarrubias-Pazaran, Giovanny; Schlautman, Brandon; Zalapa, Juan

    2016-01-01

    Traditional methods for trait phenotyping have been a bottleneck for research in many crop species due to their intensive labor, high cost, complex implementation, lack of reproducibility and propensity to subjective bias. Recently, multiple high-throughput phenotyping platforms have been developed, but most of them are expensive, species-dependent, complex to use, and available only for major crops. To overcome such limitations, we present the open-source software GiNA, which is a simple and free tool for measuring horticultural traits such as shape- and color-related parameters of fruits, vegetables, and seeds. GiNA is multiplatform software available in both R and MATLAB® programming languages and uses conventional images from digital cameras with minimal requirements. It can process up to 11 different horticultural morphological traits such as length, width, two-dimensional area, volume, projected skin, surface area, RGB color, among other parameters. Different validation tests produced highly consistent results under different lighting conditions and camera setups making GiNA a very reliable platform for high-throughput phenotyping. In addition, five-fold cross validation between manually generated and GiNA measurements for length and width in cranberry fruits were 0.97 and 0.92. In addition, the same strategy yielded prediction accuracies above 0.83 for color estimates produced from images of cranberries analyzed with GiNA compared to total anthocyanin content (TAcy) of the same fruits measured with the standard methodology of the industry. Our platform provides a scalable, easy-to-use and affordable tool for massive acquisition of phenotypic data of fruits, seeds, and vegetables. PMID:27529547

  15. GiNA, an Efficient and High-Throughput Software for Horticultural Phenotyping.

    PubMed

    Diaz-Garcia, Luis; Covarrubias-Pazaran, Giovanny; Schlautman, Brandon; Zalapa, Juan

    2016-01-01

    Traditional methods for trait phenotyping have been a bottleneck for research in many crop species due to their intensive labor, high cost, complex implementation, lack of reproducibility and propensity to subjective bias. Recently, multiple high-throughput phenotyping platforms have been developed, but most of them are expensive, species-dependent, complex to use, and available only for major crops. To overcome such limitations, we present the open-source software GiNA, which is a simple and free tool for measuring horticultural traits such as shape- and color-related parameters of fruits, vegetables, and seeds. GiNA is multiplatform software available in both R and MATLAB® programming languages and uses conventional images from digital cameras with minimal requirements. It can process up to 11 different horticultural morphological traits such as length, width, two-dimensional area, volume, projected skin, surface area, RGB color, among other parameters. Different validation tests produced highly consistent results under different lighting conditions and camera setups making GiNA a very reliable platform for high-throughput phenotyping. In addition, five-fold cross validation between manually generated and GiNA measurements for length and width in cranberry fruits were 0.97 and 0.92. In addition, the same strategy yielded prediction accuracies above 0.83 for color estimates produced from images of cranberries analyzed with GiNA compared to total anthocyanin content (TAcy) of the same fruits measured with the standard methodology of the industry. Our platform provides a scalable, easy-to-use and affordable tool for massive acquisition of phenotypic data of fruits, seeds, and vegetables. PMID:27529547

  16. Co-composting of invasive Acacia longifolia with pine bark for horticultural use.

    PubMed

    Brito, Luis Miguel; Mourão, Isabel; Coutinho, João; Smith, Stephen R

    2015-01-01

    The feasibility of commercial-scale co-composting of waste biomass from the control of invasive Acacia species with pine bark waste from the lumber industry, in a blend ratio of 60:40 (v:v), was investigated and compared with previous research on the composting of Acacia without additional feedstock, to determine the potential process and end-product quality benefits of co-composting with bark. Pile temperatures rose rapidly to >70 °C and were maintained at >60 °C for several months. Acacia and bark biomass contained a large fraction of mineralizable organic matter (OM) equivalent to approximately 600 g kg(-1) of initial OM. Bark was more recalcitrant to biodegradation compared with Acacia, which degraded at twice the rate of bark. Therefore, incorporating the bark increased the final amount of compost produced compared with composting Acacia residues without bark. The relatively high C/N ratio of the composting matrix (C/N=56) and NH3 volatilization explained the limited increases in NH4+-N content, whereas concentrations of conservative nutrient elements (e.g. P, K, Ca, Mg, Fe) increased in proportion to OM mineralization, enriching the compost as a nutrient source for horticultural use. Nitrogen concentrations also increased to a small extent, but were much more dynamic and losses, probably associated with N volatilization mechanisms, were difficult to actively control. The physicochemical characteristics of the stabilized end-product, such as pH, electrical conductivity and OM content, were improved with the addition of bark to Acacia biomass, and the final compost characteristics were suitable for use for soil improvement and also as horticultural substrate components. PMID:25559143

  17. Co-composting of invasive Acacia longifolia with pine bark for horticultural use.

    PubMed

    Brito, Luis Miguel; Mourão, Isabel; Coutinho, João; Smith, Stephen R

    2015-01-01

    The feasibility of commercial-scale co-composting of waste biomass from the control of invasive Acacia species with pine bark waste from the lumber industry, in a blend ratio of 60:40 (v:v), was investigated and compared with previous research on the composting of Acacia without additional feedstock, to determine the potential process and end-product quality benefits of co-composting with bark. Pile temperatures rose rapidly to >70 °C and were maintained at >60 °C for several months. Acacia and bark biomass contained a large fraction of mineralizable organic matter (OM) equivalent to approximately 600 g kg(-1) of initial OM. Bark was more recalcitrant to biodegradation compared with Acacia, which degraded at twice the rate of bark. Therefore, incorporating the bark increased the final amount of compost produced compared with composting Acacia residues without bark. The relatively high C/N ratio of the composting matrix (C/N=56) and NH3 volatilization explained the limited increases in NH4+-N content, whereas concentrations of conservative nutrient elements (e.g. P, K, Ca, Mg, Fe) increased in proportion to OM mineralization, enriching the compost as a nutrient source for horticultural use. Nitrogen concentrations also increased to a small extent, but were much more dynamic and losses, probably associated with N volatilization mechanisms, were difficult to actively control. The physicochemical characteristics of the stabilized end-product, such as pH, electrical conductivity and OM content, were improved with the addition of bark to Acacia biomass, and the final compost characteristics were suitable for use for soil improvement and also as horticultural substrate components.

  18. Strategies for biological system management of nematodes in horticultural crops: fumigate, confuse or ignore them.

    PubMed

    Sikora, Richard A

    2002-01-01

    Integrated management of nematodes as well as other soil-borne pests and diseases in horticultural crops in the tropics and subtropics as well as in protected cultivation in temperate climates is often a lopsided approach based on soil fumigation. With the upcoming loss of methyl bromide (Mbr), because of its effects on the ozone layer of the atmosphere, growers will have to make changes in the way they look at the problem of controlling soil-borne nematodes, fungi, insects and weeds. They can no longer rely on eradication of all pest problems with a one-stroke fumigation process. This is a severe problem that requires sound scientific solutions. New control technologies need to be developed and established methods urgently refined that are acceptable to the growers. Alternative fumigants and systemic nematicides still on the market will not provide broad spectrum control equal to Mbr. More disturbing is a provocative statement made by an economist that due to pesticides nematologists have neglected developing suitable alternative IPM measures of control. Some people may agree with this statement, especially if they are not involved in soil-ecosystem research. If you are a nematologist, this thought-provoking statement is at first upsetting but it is not valid. My talk will concentrate on the biological and cultural control methodologies that have been developed by nematologist around the world for use in management systems. These are technologies that can compensate for the loss of methyl bromide to horticultural crops in many countries. Alternatives are available and new methodologies are being developed for restructuring IPM strategies in many crops. The compatibility of these new approaches with general farming practices needs to be assessed on a country by country basis. Mutually interacting technology packages are needed, that are logically structured in "biological system management" programs that stress biocontrol aspects of control and not pesticides as is

  19. A real-time PCR assay for the quantitative detection of Ralstonia solanacearum in the horticultural soil and plant tissues.

    PubMed

    Chen, Yun; Zhang, Wen-Zhi; Liu, Xin; Ma, Zhong-Hua; Li, Bo; Allen, Caitilyn; Guo, Jian-Hua

    2010-01-01

    A specific and rapid real-time PCR assay for detecting Ralstonia solanacearum in the horticultural soil and plant tissues was developed in this study. The specific primers RSF/RSR were designed based on the upstream region of UDP-3-O-acyl-GlcNAc deacetylase gene from R. solanacearum, and a PCR product of 159 bp was amplified specifically from 28 strains of R. solanacearum, which represent all genetically diverse AluI types and all 6 biovars, but not from any other nontarget species. The detection limit of 102 CFU/g tomato stem and horticultural soil was achieved in this real-time PCR assay. The high sensitivity and specificity observed with filed samples as well as with artificially infected samples suggested that this method might be a useful tool for detection and quantification of R. solanacearum in precise forecast and diagnosis.

  20. An ultra-high-density bin map facilitates high-throughput QTL mapping of horticultural traits in pepper (Capsicum annuum)

    PubMed Central

    Han, Koeun; Jeong, Hee-Jin; Yang, Hee-Bum; Kang, Sung-Min; Kwon, Jin-Kyung; Kim, Seungill; Choi, Doil; Kang, Byoung-Cheorl

    2016-01-01

    Most agricultural traits are controlled by quantitative trait loci (QTLs); however, there are few studies on QTL mapping of horticultural traits in pepper (Capsicum spp.) due to the lack of high-density molecular maps and the sequence information. In this study, an ultra-high-density map and 120 recombinant inbred lines (RILs) derived from a cross between C. annuum ‘Perennial’ and C. annuum ‘Dempsey’ were used for QTL mapping of horticultural traits. Parental lines and RILs were resequenced at 18× and 1× coverage, respectively. Using a sliding window approach, an ultra-high-density bin map containing 2,578 bins was constructed. The total map length of the map was 1,372 cM, and the average interval between bins was 0.53 cM. A total of 86 significant QTLs controlling 17 horticultural traits were detected. Among these, 32 QTLs controlling 13 traits were major QTLs. Our research shows that the construction of bin maps using low-coverage sequence is a powerful method for QTL mapping, and that the short intervals between bins are helpful for fine-mapping of QTLs. Furthermore, bin maps can be used to improve the quality of reference genomes by elucidating the genetic order of unordered regions and anchoring unassigned scaffolds to linkage groups. PMID:26744365

  1. Co-composting of solid and liquid olive mill wastes: management aspects and the horticultural value of the resulting composts.

    PubMed

    Aviani, I; Laor, Y; Medina, Sh; Krassnovsky, A; Raviv, M

    2010-09-01

    Successful co-composting of solid and liquid olive mill wastes (OMW) and obtaining a product of horticultural value may increase the viability of this recycling approach. Two composting cycles were performed, in which olive mill solid wastes (OMSW) were used to form five mixtures, wetted either with fresh water or with olive mill wastewater (OMWW). Up to approximately 0.3m(3) of OMWW could be applied to each m(3) of the raw materials without negatively affecting the chemical, physical and horticultural properties of the resulted composts. A growing media composed of perlite amended with 25-33% OMW-composts showed higher suppressiveness against Fusarium oxysporum f. sp. melonis as compared to equivalent perlite:peat moss mixtures. The yields of tomato plants grown in peat moss amended with 20% (v:v) of OMW-composts were not significantly different than plants grown in unamended peat. The viability of co-composting as a treatment approach for OMWW is discussed in the context of management aspects and the horticultural value of the final product. PMID:20399644

  2. Asymmetric introgression in the horticultural living fossil cycas sect. Asiorientales using a genome-wide scanning approach.

    PubMed

    Chiang, Yu-Chung; Huang, Bing-Hong; Chang, Chun-Wen; Wan, Yu-Ting; Lai, Shih-Jie; Huang, Shong; Liao, Pei-Chun

    2013-01-01

    The Asian cycads are mostly allopatric, distributed in small population sizes. Hybridization between allopatric species provides clues in determining the mechanism of species divergence. Horticultural introduction provides the chance of interspecific gene flow between allopatric species. Two allopatrically eastern Asian Cycas sect. Asiorientales species, C. revoluta and C. taitungensis, which are widely distributed in Ryukyus and Fujian Province and endemic to Taiwan, respectively, were planted in eastern Taiwan for horticultural reason. Higher degrees of genetic admixture in cultivated samples than wild populations in both cycad species were detected based on multilocus scans by neutral AFLP markers. Furthermore, bidirectional but asymmetric introgression by horticultural introduction of C. revoluta is evidenced by the reanalyses of species associated loci, which are assumed to be diverged after species divergence. Partial loci introgressed from native cycad to the invaders were also detected at the loci of strong species association. Consistent results tested by all neutral loci, and the species-associated loci, specify the recent introgression from the paradox of sharing of ancestral polymorphisms. Phenomenon of introgression of cultivated cycads implies niche conservation among two geographic-isolated cycads, even though the habitats of the extant wild populations of two species are distinct. PMID:23591840

  3. Asymmetric introgression in the horticultural living fossil cycas sect. Asiorientales using a genome-wide scanning approach.

    PubMed

    Chiang, Yu-Chung; Huang, Bing-Hong; Chang, Chun-Wen; Wan, Yu-Ting; Lai, Shih-Jie; Huang, Shong; Liao, Pei-Chun

    2013-04-15

    The Asian cycads are mostly allopatric, distributed in small population sizes. Hybridization between allopatric species provides clues in determining the mechanism of species divergence. Horticultural introduction provides the chance of interspecific gene flow between allopatric species. Two allopatrically eastern Asian Cycas sect. Asiorientales species, C. revoluta and C. taitungensis, which are widely distributed in Ryukyus and Fujian Province and endemic to Taiwan, respectively, were planted in eastern Taiwan for horticultural reason. Higher degrees of genetic admixture in cultivated samples than wild populations in both cycad species were detected based on multilocus scans by neutral AFLP markers. Furthermore, bidirectional but asymmetric introgression by horticultural introduction of C. revoluta is evidenced by the reanalyses of species associated loci, which are assumed to be diverged after species divergence. Partial loci introgressed from native cycad to the invaders were also detected at the loci of strong species association. Consistent results tested by all neutral loci, and the species-associated loci, specify the recent introgression from the paradox of sharing of ancestral polymorphisms. Phenomenon of introgression of cultivated cycads implies niche conservation among two geographic-isolated cycads, even though the habitats of the extant wild populations of two species are distinct.

  4. Plastid genomics in horticultural species: importance and applications for plant population genetics, evolution, and biotechnology

    PubMed Central

    Rogalski, Marcelo; do Nascimento Vieira, Leila; Fraga, Hugo P.; Guerra, Miguel P.

    2015-01-01

    During the evolution of the eukaryotic cell, plastids, and mitochondria arose from an endosymbiotic process, which determined the presence of three genetic compartments into the incipient plant cell. After that, these three genetic materials from host and symbiont suffered several rearrangements, bringing on a complex interaction between nuclear and organellar gene products. Nowadays, plastids harbor a small genome with ∼130 genes in a 100–220 kb sequence in higher plants. Plastid genes are mostly highly conserved between plant species, being useful for phylogenetic analysis in higher taxa. However, intergenic spacers have a relatively higher mutation rate and are important markers to phylogeographical and plant population genetics analyses. The predominant uniparental inheritance of plastids is like a highly desirable feature for phylogeny studies. Moreover, the gene content and genome rearrangements are efficient tools to capture and understand evolutionary events between different plant species. Currently, genetic engineering of the plastid genome (plastome) offers a number of attractive advantages as high-level of foreign protein expression, marker gene excision, gene expression in operon and transgene containment because of maternal inheritance of plastid genome in most crops. Therefore, plastid genome can be used for adding new characteristics related to synthesis of metabolic compounds, biopharmaceutical, and tolerance to biotic and abiotic stresses. Here, we describe the importance and applications of plastid genome as tools for genetic and evolutionary studies, and plastid transformation focusing on increasing the performance of horticultural species in the field. PMID:26284102

  5. Assessment of Primary Production of Horticultural Safety Management Systems of Mushroom Farms in South Africa.

    PubMed

    Dzingirayi, Garikayi; Korsten, Lise

    2016-07-01

    Growing global consumer concern over food safety in the fresh produce industry requires producers to implement necessary quality assurance systems. Varying effectiveness has been noted in how countries and food companies interpret and implement food safety standards. A diagnostic instrument (DI) for global fresh produce industries was developed to measure the compliancy of companies with implemented food safety standards. The DI is made up of indicators and descriptive grids for context factors and control and assurance activities to measure food safety output. The instrument can be used in primary production to assess food safety performance. This study applied the DI to measure food safety standard compliancy of mushroom farming in South Africa. Ten farms representing almost half of the industry farms and more than 80% of production were independently assessed for their horticultural safety management system (HSMS) compliance via in-depth interviews with each farm's quality assurance personnel. The data were processed using Microsoft Office Excel 2010 and are represented in frequency tables. The diagnosis revealed that the mushroom farming industry had an average food safety output. The farms were implementing an average-toadvanced HSMS and operating in a medium-risk context. Insufficient performance areas in HSMSs included inadequate hazard analysis and analysis of control points, low specificity of pesticide assessment, and inadequate control of suppliers and incoming materials. Recommendations to the industry and current shortcomings are suggested for realization of an improved industry-wide food safety assurance system.

  6. Starch grains reveal early root crop horticulture in the Panamanian tropical forest.

    PubMed

    Piperno, D R; Ranere, A J; Holst, I; Hansell, P

    2000-10-19

    Native American populations are known to have cultivated a large number of plants and domesticated them for their starch-rich underground organs. Suggestions that the likely source of many of these crops, the tropical forest, was an early and influential centre of plant husbandry have long been controversial because the organic remains of roots and tubers are poorly preserved in archaeological sediments from the humid tropics. Here we report the occurrence of starch grains identifiable as manioc (Manihot esculenta Crantz), yams (Dioscorea sp.) and arrowroot (Maranta arundinacea L.) on assemblages of plant milling stones from preceramic horizons at the Aguadulce Shelter, Panama, dated between 7,000 and 5,000 years before present (BP). The artefacts also contain maize starch (Zea mays L.), indicating that early horticultural systems in this region were mixtures of root and seed crops. The data provide the earliest direct evidence for root crop cultivation in the Americas, and support an ancient and independent emergence of plant domestication in the lowland Neotropical forest. PMID:11057665

  7. Horticultural characteristics of transgenic tobacco expressing the rolC gene from Agrobacterium rhizogenes

    SciTech Connect

    Scorza, R.; Zimmerman, T.W.; Cordts, J.M.; Footen, K.J. ); Ravelonandro, M. . Station de Pathologie Vegetale)

    1994-09-01

    Wisconsin 38 tobacco (Nicotiana tabacum L.) leaf discs were transformed with the disarmed Agrobacterium tumefaciens strain EHA 101 carrying the rolC gene from A. rhizogenes and NPT II and GUS genes. Shoots that regenerated on kanamycin-containing medium were confirmed as transgenic through GUS assays, polymerase chain reaction (PCR), Southern blot analyses, and transmission of the foreign genes through the sexual cycle. Transgenic plants were as short as half the height of control plants; were earlier flowering by up to 35 days; and had smaller leaves, shorter internodes, smaller seed capsules, fewer seeds, smaller flowers, and reduced pollen viability. The number of seed capsules, leaf number, and specific root length were similar between transgenic and control plants. Transgenic clones varied in the expression of the rolC-induced growth alterations as did the first generation of seedlings from these clones. Such differences suggested the potential for selecting for different levels of expression. Transformation with the rolC gene presents a potentially useful method of genetically modifying horticultural crops, particularly for flowering date, height, and leaf and flower size. Chemical names used: neomycin phosphotransferase (NPTII), [beta]-glucuronidase (GUS).

  8. Cultivations...and potting on a strategic plan for a social and horticultural therapy program.

    PubMed

    Smilski, Andrea

    2008-01-01

    This research endeavored to develop a strategic growth plan for St. Ann's Garden Club (SAGC), a Non-Profit Social and Horticultural Therapy program, located at Providence Farm in Duncan, British Columbia. SAGC is a day program for older adults with mental illness and/or drug/alcohol addiction. The aim of the program is to be sustainable within the context of stakeholders needs, preferences, and resources and therefore they sought a strategic analysis prior to launching a growth strategy. SAGC has valuable intangible resources that contribute to strong core competencies and effectiveness despite facing many program issues requiring change in order for them to be sustainable. These same issues are shared by many public and non-profit health and wellness programs as they struggle to remain relevant in today's changing healthscape. To adequately focus the study and provide sound direction, the strategic analysis highlighted SAGC's environment, opportunities, issues, priorities, and requirements and was conducted through multiple iterations of the action research cycle. Data was gathered using surveys, interviews, and a focus group. The findings supported a capital campaign to build as new larger clubhouse and establish a more diverse sustainable funding base. Using a resource based perspective, a three year strategic plan was formulated for SAGC to help them cultivate growth and sustainability.

  9. Starch grains reveal early root crop horticulture in the Panamanian tropical forest.

    PubMed

    Piperno, D R; Ranere, A J; Holst, I; Hansell, P

    2000-10-19

    Native American populations are known to have cultivated a large number of plants and domesticated them for their starch-rich underground organs. Suggestions that the likely source of many of these crops, the tropical forest, was an early and influential centre of plant husbandry have long been controversial because the organic remains of roots and tubers are poorly preserved in archaeological sediments from the humid tropics. Here we report the occurrence of starch grains identifiable as manioc (Manihot esculenta Crantz), yams (Dioscorea sp.) and arrowroot (Maranta arundinacea L.) on assemblages of plant milling stones from preceramic horizons at the Aguadulce Shelter, Panama, dated between 7,000 and 5,000 years before present (BP). The artefacts also contain maize starch (Zea mays L.), indicating that early horticultural systems in this region were mixtures of root and seed crops. The data provide the earliest direct evidence for root crop cultivation in the Americas, and support an ancient and independent emergence of plant domestication in the lowland Neotropical forest.

  10. Plastid genomics in horticultural species: importance and applications for plant population genetics, evolution, and biotechnology.

    PubMed

    Rogalski, Marcelo; do Nascimento Vieira, Leila; Fraga, Hugo P; Guerra, Miguel P

    2015-01-01

    During the evolution of the eukaryotic cell, plastids, and mitochondria arose from an endosymbiotic process, which determined the presence of three genetic compartments into the incipient plant cell. After that, these three genetic materials from host and symbiont suffered several rearrangements, bringing on a complex interaction between nuclear and organellar gene products. Nowadays, plastids harbor a small genome with ∼130 genes in a 100-220 kb sequence in higher plants. Plastid genes are mostly highly conserved between plant species, being useful for phylogenetic analysis in higher taxa. However, intergenic spacers have a relatively higher mutation rate and are important markers to phylogeographical and plant population genetics analyses. The predominant uniparental inheritance of plastids is like a highly desirable feature for phylogeny studies. Moreover, the gene content and genome rearrangements are efficient tools to capture and understand evolutionary events between different plant species. Currently, genetic engineering of the plastid genome (plastome) offers a number of attractive advantages as high-level of foreign protein expression, marker gene excision, gene expression in operon and transgene containment because of maternal inheritance of plastid genome in most crops. Therefore, plastid genome can be used for adding new characteristics related to synthesis of metabolic compounds, biopharmaceutical, and tolerance to biotic and abiotic stresses. Here, we describe the importance and applications of plastid genome as tools for genetic and evolutionary studies, and plastid transformation focusing on increasing the performance of horticultural species in the field.

  11. Assessment of Primary Production of Horticultural Safety Management Systems of Mushroom Farms in South Africa.

    PubMed

    Dzingirayi, Garikayi; Korsten, Lise

    2016-07-01

    Growing global consumer concern over food safety in the fresh produce industry requires producers to implement necessary quality assurance systems. Varying effectiveness has been noted in how countries and food companies interpret and implement food safety standards. A diagnostic instrument (DI) for global fresh produce industries was developed to measure the compliancy of companies with implemented food safety standards. The DI is made up of indicators and descriptive grids for context factors and control and assurance activities to measure food safety output. The instrument can be used in primary production to assess food safety performance. This study applied the DI to measure food safety standard compliancy of mushroom farming in South Africa. Ten farms representing almost half of the industry farms and more than 80% of production were independently assessed for their horticultural safety management system (HSMS) compliance via in-depth interviews with each farm's quality assurance personnel. The data were processed using Microsoft Office Excel 2010 and are represented in frequency tables. The diagnosis revealed that the mushroom farming industry had an average food safety output. The farms were implementing an average-toadvanced HSMS and operating in a medium-risk context. Insufficient performance areas in HSMSs included inadequate hazard analysis and analysis of control points, low specificity of pesticide assessment, and inadequate control of suppliers and incoming materials. Recommendations to the industry and current shortcomings are suggested for realization of an improved industry-wide food safety assurance system. PMID:27357039

  12. Survey of organochlorine pesticides in horticultural soils and there grown Cucurbitaceae.

    PubMed

    Hilber, Isabel; Mäder, Paul; Schulin, Rainer; Wyss, Gabriela S

    2008-10-01

    Organochlorine pesticides (OCP) are still found in food and feed crops although they were applied about 40 years ago. There is a considerable knowledge gap concerning the extent of soil and crop contamination by OCP. We performed two surveys in 2002 and 2005 to assess the loads of OCP in 41 Swiss horticultural fields under organic and conventional production and corresponding Cucurbitaceae fruits (cucumbers, zucchini, and pumpkin), whereas these fields stay for intensive agricultural production in Europe. In addition, soil organic carbon, texture, and pH were measured also. OCP were detected in 27 out of 41 fields (65.9%). The farming practice had no influence on the contamination or level of OCP in soil. The sum of OCP-loads per field ranged from <0.01 to 1.3mgkg(-1) dry soil and pentachloroaniline (PCA, 2.1mgkg(-1)), p,p'-DDT (0.5mgkg(-1)), and p,p'-DDE and dieldrin (0.4mgkg(-1)) were the most detected pesticides over all investigated soils. PCA (up to 0.02mgkg(-1)), dieldrin (up to 0.04mgkg(-1)), alpha-chlordane and cis-heptachloroepoxide (<0.01mgkg(-1)) were detected in five cucumber samples out of 41 Cucurbitaceae samples. Statistical analysis revealed no significant influence of the measured soil properties on the OCP-load of soils and cucumbers, although there is evidence that the bioavailability of OCP in soils to Cucurbitaceae plants was influenced by the sorption of the compounds to soil organic matter and by the polarity of the pesticide molecules. It is suggested, that OCP contamination is widespread in all European regions with intensive plant production and associated pesticide use, and deserves more attention with respect to save food production.

  13. Strigolactone pathway genes and plant architecture: association analysis and QTL detection for horticultural traits in chrysanthemum.

    PubMed

    Klie, Maik; Menz, Ina; Linde, Marcus; Debener, Thomas

    2016-04-01

    Chrysanthemums are important ornamental plants with abundant phenotypic diversity. Especially in cut-flower breeding, shoot branching is important for the success of new varieties. To assess the genetic regulation of shoot branching and other horticultural important traits, we phenotyped and genotyped two types of chrysanthemum populations: a genotype collection of 86 varieties and a biparental F1-population (MK11/3) of 160 individuals. Using two different statistical approaches, a genome-wide association analysis and a single marker ANOVA, with AFLP marker data and candidate gene markers for shoot branching, we tried to identify markers correlated to the traits of interest. As expected for the outcrossing hexasomic chrysanthemums most of the phenotypic traits showed a continuous variation in both populations. With the candidate gene approach we identified 11 significantly associated marker alleles for all 4 strigolactone pathway genes BRC1, CCD7, CCD8 and MAX2 regulating shoot branching in the genotype collection. In the MK11/3 we detected seven markers for all candidate genes except MAX2 explaining a large proportion of the variation. Using anonymous AFLP markers in the GWA with the 86 genotypes and the single locus analysis with the F1-population we could detect 15 and 17 additional marker-trait associations, respectively. Our analyses indicate a polygenic inheritance of the shoot branching in the chrysanthemum, with a fundamental role of the strigolactone pathway genes BRC1, CCD7, CCD8 and MAX2 and we identified 50 associated markers to all traits under study. These markers could be used in the selection of the parental plants for breeding chrysanthemums to enrich them for positive alleles influencing plant architecture traits. PMID:26780913

  14. Phenotypic plasticity of stem water potential correlates with crop load in horticultural trees.

    PubMed

    Sadras, Victor O; Trentacoste, Eduardo R

    2011-05-01

    Conceptual models accounting for the influence of source:sink ratio on water relations of trees are theoretically relevant from a physiological perspective and practically important for irrigation scheduling. Midday stem water potential of horticultural trees often declines with increasing crop load but the actual response depends on environmental, management and plant factors. Here we advance a quantitative synthesis of the response of stem water potential to crop load from the perspective of phenotypic plasticity, defined as 'the amount by which the expression of individual characteristics of a genotype are changed by different environments'. Data sets of stem water potential for contrasting crop loads were compiled for apple (Malus domestica L. Borkh.), olive (Olea europea L.), peach (Prunus persica L.), pear (Pyrus communis L.) and plum (Prunus domestica L.). Phenotypic plasticity of stem water potential was calculated as the slope of the linear regression between stem water potential for each crop load and the environmental mean of stem water potential across crop loads. Regression lines for trees with different crop load diverged with decreasing environmental mean stem water potential. For the pooled data, plasticity of stem water potential was a linear function of relative crop load. This represents a significant shift in perspective: the effect of crop load on the trait per se (stem water potential) is environmentally contingent, but the effect of crop load on the plasticity of the trait is not. We conclude that research on the effects of crop load on tree water relations would return more robust results if plant traits are considered from the dual perspective of the trait per se and its plasticity.

  15. Effects of ozone treatment on Botrytis cinerea and Sclerotinia sclerotiorum in relation to horticultural product quality.

    PubMed

    Sharpe, Deana; Fan, Lihua; McRae, Ken; Walker, Brad; MacKay, Ron; Doucette, Craig

    2009-08-01

    Botrytis cinerea and Sclerotinia sclerotiorum are fungal pathogens that cause the decay of many fruits and vegetables. Ozone may be used as an antimicrobial agent to control the decay. The effect of gaseous ozone on spore viability of B. cinerea and mycelial growth of B. cinerea and S. sclerotiorum were investigated. Spore viability of B. cinerea was reduced by over 99.5% (P < 0.01) and height of the aerial mycelium was reduced from 4.7 mm in the control to less than 1 mm after exposure to 450 or 600 ppb ozone for 48 h at 20 degrees C. Sporulation of B. cinerea was also substantially inhibited by ozone treatments. However, ozone had no significant effect on mycelial growth of S. sclerotiorum in vitro. Decay and quality parameters including color, chlorophyll fluorescence (CF), and ozone injury were further assessed for various horticultural commodities (apple, grape, highbush blueberry, and carrot) treated with 450 ppb of ozone for 48 h at 20 degrees C over a period of 12 d. Lesion size and height of the aerial mycelium were significantly reduced by the ozone treatment on carrots inoculated with mycelial agar plugs of B. cinerea or S. sclerotiorum. Lesion size was also reduced on treated apples inoculated with 5 x 10(6) spores/mL of B. cinerea, and decay incidence of treated grapes was reduced. The 450 ppb ozone for 48 h treatment had no significant effect on color of carrots and apples or on CF of apples and grapes. Ozone, an environmentally sound antimicrobial agent, inactivates microorganisms through oxidization and residual ozone spontaneously decomposes to nontoxic products. It may be applied to fruits and vegetables to reduce decay and extend shelf life. PMID:19723209

  16. How healthy is urban horticulture in high traffic areas? Trace metal concentrations in vegetable crops from plantings within inner city neighbourhoods in Berlin, Germany.

    PubMed

    Säumel, Ina; Kotsyuk, Iryna; Hölscher, Marie; Lenkereit, Claudia; Weber, Frauke; Kowarik, Ingo

    2012-06-01

    Food production by urban dwellers is of growing importance in developing and developed countries. Urban horticulture is associated with health risks as crops in urban settings are generally exposed to higher levels of pollutants than those in rural areas. We determined the concentration of trace metals in the biomass of different horticultural crops grown in the inner city of Berlin, Germany, and analysed how the local setting shaped the concentration patterns. We revealed significant differences in trace metal concentrations depending on local traffic, crop species, planting style and building structures, but not on vegetable type. Higher overall traffic burden increased trace metal content in the biomass. The presence of buildings and large masses of vegetation as barriers between crops and roads reduced trace metal content in the biomass. Based on this we discuss consequences for urban horticulture, risk assessment, and planting and monitoring guidelines for cultivation and consumption of crops.

  17. Genomic variants of genes associated with three horticultural traits in apple revealed by genome re-sequencing

    PubMed Central

    Zhang, Shijie; Chen, Weiping; Xin, Lu; Gao, Zhihong; Hou, Yingjun; Yu, Xinyi; Zhang, Zhen; Qu, Shenchun

    2014-01-01

    The apple (Malus × domestica Borkh.) cultivar ‘Su Shuai’ exhibits greater disease resistance, shorter internodes and lighter fruit flavor compared with its parents ‘Golden Delicious’ and ‘Indo’. To obtain a comprehensive overview of the sequence variation in these three horticultural traits, the genomes of ‘Su Shuai’ and ‘Indo’ were resequenced using next-generation sequencing and compared to the genome of ‘Golden Delicious’. A wide range of genetic variations were detected, including 2 454 406 and 18 749 349 single nucleotide polymorphism (SNP) and 59 547 and 50 143 structural variants (SVs) in the ‘Indo’ and ‘Su Shuai’ genomes, respectively. Among the SVs in ‘Su Shuai’, 17 genes related to disease resistance, 10 genes related to Gibberellin (GA) and 19 genes associated with fruit flavor were identified. The expression patterns of eight of the SV genes were examined using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The results of this study illustrate the genomic variation in these cultivars and provide evidence for a genetic basis for the horticultural traits of disease resistance, short internodes and lighter flavor exhibited in these cultivars. These results provide a genetic basis for the phenotypic characteristics of ‘Su Shuai’ and, as such, these SVs could serve as gene-specific molecular markers in maker-assisted breeding of apples. PMID:26504548

  18. Assessment of the tung tree (Vernicia fordii) germplasm collection and latest cultivar release at the USDA-ARS Southern Horticultural Research Unit in Poplarville, MS

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Tung trees (Vernicia fordii, syn Aleurites fordii) and tung oil production have a long history in the gulf coast region. The Thad Cochran Southern Horticultural Laboratory (TCSHL) in Poplarville, MS was formerly the USDA Tung Oil Research Station in the 1940s, 50s and 60s and still maintains an exte...

  19. Chemical constituents with anti-allergic activity from the root of Edulis Superba, a horticultural cultivar of Paeonia lactiflora.

    PubMed

    Shi, Yan-Hong; Zhu, Shu; Tamura, Takayuki; Kadowaki, Makoto; Wang, Zhengtao; Yoshimatsu, Kayo; Komatsu, Katsuko

    2016-04-01

    The methanolic extract and its subfractions from the dried root of Edulis Superba, a horticultural cultivar of Paeonia lactiflora Pallas, showed potent anti-allergic effect as inhibition of immunoglobulin E (IgE)-mediated degranulation in rat basophil leukemia (RBL)-2H3 cells. Bioassay-guided fractionation led to the isolation of 26 compounds, including a new norneolignan glycoside, paeonibenzofuran (1), together with 25 known ones (2-26). The chemical structure of the new compound was elucidated on the basis of spectroscopic and chemical evidences. Among the isolated compounds, mudanpioside E (5) with paeoniflorin-type skeleton and quercetin (16) showed potent inhibitory activity against a degranulation marker, β-hexosaminidase release with IC50 values of 40.34 and 25.05 μM, respectively. A primary structure-activity relationship of these components was discussed.

  20. Chemical constituents with anti-allergic activity from the root of Edulis Superba, a horticultural cultivar of Paeonia lactiflora.

    PubMed

    Shi, Yan-Hong; Zhu, Shu; Tamura, Takayuki; Kadowaki, Makoto; Wang, Zhengtao; Yoshimatsu, Kayo; Komatsu, Katsuko

    2016-04-01

    The methanolic extract and its subfractions from the dried root of Edulis Superba, a horticultural cultivar of Paeonia lactiflora Pallas, showed potent anti-allergic effect as inhibition of immunoglobulin E (IgE)-mediated degranulation in rat basophil leukemia (RBL)-2H3 cells. Bioassay-guided fractionation led to the isolation of 26 compounds, including a new norneolignan glycoside, paeonibenzofuran (1), together with 25 known ones (2-26). The chemical structure of the new compound was elucidated on the basis of spectroscopic and chemical evidences. Among the isolated compounds, mudanpioside E (5) with paeoniflorin-type skeleton and quercetin (16) showed potent inhibitory activity against a degranulation marker, β-hexosaminidase release with IC50 values of 40.34 and 25.05 μM, respectively. A primary structure-activity relationship of these components was discussed. PMID:26833191

  1. Comparative assessment of migrant farm worker health in conventional and organic horticultural systems in the United Kingdom.

    PubMed

    Cross, Paul; Edwards, Rhiannon T; Hounsome, Barry; Edwards-Jones, Gareth

    2008-02-25

    This study describes the self-reported health and well-being status of field and packhouse workers in UK vegetable horticulture, and tests the null hypothesis that there is no difference in the self-reported health of workers on organic and conventional horticultural farms. The majority of those sampled were migrant workers (93%) from Bulgaria, Latvia, Lithuania, Poland, Russia and the Ukraine. More than 95% of the respondents were aged 18-34 and recruited through university agricultural faculties in East European or employed via UK agencies. The health of 605 farm workers (395 males and 210 females) was measured through the use of four standard health instruments. Farm workers' health was significantly poorer than published national norms for three different health instruments (Short Form 36, EuroQol EQ-5D and the Visual Analogue Scale). There were no significant differences in the health status of farm workers between conventional and organic farms for any of these three instruments. However, organic farm workers scored higher on a fourth health instrument the Short Depression Happiness Scale (SDHS) indicating that workers on organic farms were happier than their counterparts working on conventional farms. Multiple regression analysis suggested that the difference in the SDHS score for organic and conventional farms is closely related to the range and number of tasks the workers performed each day. These findings suggest that a great deal of improvement in the self-reported health of farmers will need to occur before organic farms meet the requirements of the 'Principle of Health' as described by IFOAM. Ensuring that farm workers have a varied range of tasks could be a cost effective means of improving self-reported health status in both organic and conventional farming systems.

  2. Comparative assessment of migrant farm worker health in conventional and organic horticultural systems in the United Kingdom.

    PubMed

    Cross, Paul; Edwards, Rhiannon T; Hounsome, Barry; Edwards-Jones, Gareth

    2008-02-25

    This study describes the self-reported health and well-being status of field and packhouse workers in UK vegetable horticulture, and tests the null hypothesis that there is no difference in the self-reported health of workers on organic and conventional horticultural farms. The majority of those sampled were migrant workers (93%) from Bulgaria, Latvia, Lithuania, Poland, Russia and the Ukraine. More than 95% of the respondents were aged 18-34 and recruited through university agricultural faculties in East European or employed via UK agencies. The health of 605 farm workers (395 males and 210 females) was measured through the use of four standard health instruments. Farm workers' health was significantly poorer than published national norms for three different health instruments (Short Form 36, EuroQol EQ-5D and the Visual Analogue Scale). There were no significant differences in the health status of farm workers between conventional and organic farms for any of these three instruments. However, organic farm workers scored higher on a fourth health instrument the Short Depression Happiness Scale (SDHS) indicating that workers on organic farms were happier than their counterparts working on conventional farms. Multiple regression analysis suggested that the difference in the SDHS score for organic and conventional farms is closely related to the range and number of tasks the workers performed each day. These findings suggest that a great deal of improvement in the self-reported health of farmers will need to occur before organic farms meet the requirements of the 'Principle of Health' as described by IFOAM. Ensuring that farm workers have a varied range of tasks could be a cost effective means of improving self-reported health status in both organic and conventional farming systems. PMID:18063013

  3. Phenology, natural enemies, and efficacy of horticultural oil for control of Chionaspis heterophyllae (Homoptera: Diaspididae) on Christmas tree plantations.

    PubMed

    Fondren, Kirsten M; McCullough, Deborah G

    2005-10-01

    Pine needle scale, Chionaspis pinifoliae (Fitch), and Chionaspis heterophyllae Cooley are important pests of Scots pine, Pinus sylvestris L., and other conifers in much of North America. On Christmas tree plantations, these insects are typically controlled by spraying broad-spectrum insecticides when the vulnerable immature stages are present. However, effective control of bivoltine populations can be difficult to achieve due to asynchronous hatch and development of the second generation. Our objectives were to 1) determine the phenology of the second generation of C. heterophyllae in Michigan; 2) characterize the natural enemy complex; and 3) assess the effectiveness of horticultural oil for control of C. heterophyllae on P. sylvestris Christmas tree plantations. We monitored scale populations in three counties in lower Michigan for 3 yr. Scale phenology was consistently associated with cumulative degree-days base 10 degrees C (DD(10 degrees C)). Second-generation egg hatch began at approximately 1230-1300 DD(10 degrees C), and continued for approximately 3 wk. The peak of the second instar coincided with 1500-1600 DD(10 degrees C). Common predators included the coccinellids Chilocorus stigma (Say) and Microweisia misella (LeConte). On average, 70% of the C. heterophyllae population in unsprayed fields was killed by predators in 1999. Two endoparasitic wasps, Encarsia bella Gahan and Marietta mexicana Howard (Hymenoptera: Aphelinidae), also were recovered. In 2000 and 2001, we applied a highly refined horticultural spray oil with a backpack mist blower at 1500-1600 DD(10 degrees). Scale mortality on trees treated with oil ranged from 66 to 80% and was similar to control achieved using conventional insecticides in both years.

  4. Pesticide potential dermal exposure during the manipulation of concentrated mixtures at small horticultural and floricultural production units in Argentina: the formulation effect.

    PubMed

    Berenstein, Giselle A; Hughes, Enrique A; March, Hugo; Rojic, Guillermo; Zalts, Anita; Montserrat, Javier M

    2014-02-15

    Potential dermal exposure measurements of horticultural and floricultural field operators that handled concentrated pesticides showed a correlation with the types of formulations used (liquid or solid) during the mix and load stage. For liquid formulations, hand exposure was 22-62 times greater than that for solid ones. The dermal exposure mechanism was studied for this formulation under laboratory conditions, finding that the rupture of the aluminum seal of the pesticide container and the color of the liquid formulation are important factors. Additionally, significant external surface contamination of pesticide containers collected at horticultural farms was found. This could partially account for the differences between the exposure levels of field and laboratory experiments for liquid formulations.

  5. Hyperspectral imaging-based spatially-resolved technique for accurate measurement of the optical properties of horticultural products

    NASA Astrophysics Data System (ADS)

    Cen, Haiyan

    Hyperspectral imaging-based spatially-resolved technique is promising for determining the optical properties and quality attributes of horticultural and food products. However, considerable challenges still exist for accurate determination of spectral absorption and scattering properties from intact horticultural products. The objective of this research was, therefore, to develop and optimize hyperspectral imaging-based spatially-resolved technique for accurate measurement of the optical properties of horticultural products. Monte Carlo simulations and experiments for model samples of known optical properties were performed to optimize the inverse algorithm of a single-layer diffusion model and the optical designs, for extracting the absorption (micro a) and reduced scattering (micros') coefficients from spatially-resolved reflectance profiles. The logarithm and integral data transformation and the relative weighting methods were found to greatly improve the parameter estimation accuracy with the relative errors of 10.4%, 10.7%, and 11.4% for micro a, and 6.6%, 7.0%, and 7.1% for micros', respectively. More accurate measurements of optical properties were obtained when the light beam was of Gaussian type with the diameter of less than 1 mm, and the minimum and maximum source-detector distances were 1.5 mm and 10--20 transport mean free paths, respectively. An optical property measuring prototype was built, based on the optimization results, and evaluated for automatic measurement of absorption and reduced scattering coefficients for the wavelengths of 500--1,000 nm. The instrument was used to measure the optical properties, and assess quality/maturity, of 500 'Redstar' peaches and 1039 'Golden Delicious' (GD) and 1040 'Delicious' (RD) apples. A separate study was also conducted on confocal laser scanning and scanning electron microscopic image analysis and compression test of fruit tissue specimens to measure the structural and mechanical properties of 'Golden

  6. A synthesis of AOT40-based response functions and critical levels of ozone for agricultural and horticultural crops

    NASA Astrophysics Data System (ADS)

    Mills, G.; Buse, A.; Gimeno, B.; Bermejo, V.; Holland, M.; Emberson, L.; Pleijel, H.

    Crop-response data from over 700 published papers and conference proceedings have been analysed with the aim of establishing ozone dose-response functions for a wide range of European agricultural and horticultural crops. Data that met rigorous selection criteria (e.g. field-based, ozone concentrations within European range, full season exposure period) were used to derive AOT40-yield response functions for 19 crops by first converting the published ozone concentration data into AOT40 (AOT40 is the hourly mean ozone concentration accumulated over a threshold ozone concentration of 40 ppb during daylight hours, units ppm h). For any individual crop, there were no significant differences in the linear response functions derived for experiments conducted in the USA or Europe, or for individual cultivars. Three statistically independent groups were identified: ozone sensitive crops (wheat, water melon, pulses, cotton, turnip, tomato, onion, soybean and lettuce); moderately sensitive crops (sugar beet, potato, oilseed rape, tobacco, rice, maize, grape and broccoli) and ozone resistant (barley and fruit represented by plum and strawberry). Critical levels of a 3 month AOT40 of 3 ppm h and a 3.5 month AOT40 of 6 ppm h were derived from the functions for wheat and tomato, respectively.

  7. Efficacy of several insecticides alone and with horticultural mineral oils on light brown apple moth (Lepidoptera: Tortricidae) eggs.

    PubMed

    Taverner, Peter D; Sutton, Clay; Cunningham, Nancy M; Dyson, Chris; Lucas, Nola; Myers, Scott W

    2011-02-01

    The aim of the research was to identify efficacious and less environmentally harmful treatments than the standard chlorpyrifos sprays used for the control light brown apple moth, Epiphyas postvittana (Walker) (Lepidoptera: Tortricidae), eggs on nursery stock. A series of dip experiments showed a range of responses when comparing the efficacy of insecticides on egg hatch of E. postvittana. The insecticides that compared most favorably with chlorpyrifos were lamda-cyhalothrin and gamma-cyhalothrin, and thiacloprid. Indoxacarb, novaluron, and spinosad caused significant mortality only when combined with All Seasons mineral oil. All Seasons, showed ovicidal properties when evaluated alone and demonstrated adjuvant properties when combined with the above-mentioned insecticides, except gamma-cyhalothrin and thiacloprid. Several other horticultural mineral oils performed similarly, except the efficacy of spinosad varied with the oil product used, suggesting that the oil type selected is important for some insecticide and oil combinations. Several insecticides evaluated in this study are likely candidates for further work to develop treatments against E. postvittana eggs on nursery plants. Mineral oils are ovicidal and combinations with insecticides are likely to be advantageous.

  8. An exploration of spousal separation and adaptation to long-term disability: six elderly couples engaged in a horticultural programme.

    PubMed

    Martin, Linda; Miranda, Baldwin; Bean, Michelle

    2008-01-01

    The main objective of the present study was to explore the impact of separation on couples where one spouse lives in a skilled nursing facility and the other spouse lives alone in the community. Six couples participated in a 10-week gardening group. Semi-structured interviews were conducted at the beginning of the study and observations were made and discussions engaged through the 10-week horticultural programme. Thematic analysis of interviews and discussions revealed reduced social participation of community-dwelling spouses in an effort to maintain their marital role. In one or more cases the non-institutionalized spouse adapted to separation by developing social roles and relationships within the skilled nursing facility and continuing as a caregiver to their spouse. Occupational therapists are encouraged to include spouses in programmes to nurture healthy spousal roles. Further research is needed to explore how elderly couples may support each other through purposeful occupation while one spouse is in a long-term care facility.

  9. [In vitro tests of the antagonistic behavior of Trichoderma spp. against pathogenic species of the horticultural region of La Plata, Argentina].

    PubMed

    Mónaco, C; Perelló, A; Rollán, M C

    1994-12-01

    The antagonistic properties of seven Trichoderma species in front of the pathogens Fusarium oxysporum, F. equiseti, F. solani, Sclerotinia sclerotiorum, S. minor, Rhizoctonia sp. and Sclerotium rolfsii was evaluated in vitro. Those microorganisms were isolated from horticultural soils of La Plata in order to test the antagonistic-pathogenic relationship. Dual cultures on PDA 2% were used. All the species of Trichoderma grew in the culture medium with a colonization value higher than 50%. Differences in the antagonistic behaviour of the pathogens were observed depending on the species with which they interacted. The presence of diffusible metabolites to the medium was demonstrated in almost 80% of the pathogens antagonists tested. PMID:7772296

  10. Pig manure vermicompost as a component of a horticultural bedding plant medium: effects on physicochemical properties and plant growth.

    PubMed

    Atiyeh, R M; Edwards, C A; Subler, S; Metzger, J D

    2001-05-01

    This experiment was designed to characterize the physical, chemical and microbial properties of a standard commercial horticultural, greenhouse container, bedding plant medium (Metro-Mix 360), that had been substituted with a range of increasing concentrations (0%, 5%, 10%, 25%, 50% and 100% by volume) of pig manure vermicompost and to relate these properties to plant growth responses. The growth trials used tomatoes (Lycopersicon esculentum Mill.), grown in the substituted media for 31 days under glasshouse conditions, with seedling growth recorded in 20 pots for each treatment. Half of the tomato seedlings (10 pots per treatment) were watered daily with liquid inorganic fertilizer while the other half received water only. The percentage total porosity, percentage air space, pH and ammonium concentrations of the container medium all decreased significantly, after substitution of Metro-Mix 360 with equivalent amounts of pig manure vermicompost; whereas bulk density, container capacity, electrical conductivity, overall microbial activity and nitrate concentrations, all increased with increasing substitutions of vermicompost. The growth of tomato seedlings in the potting mixtures containing 100% pig manure vermicompost was reduced, possibly as a result of high soluble salt concentrations in the vermicompost and poorer porosity and aeration. The growth of tomato seedlings was greatest after substitution of Metro-Mix 360 with between 25% and 50% pig manure vermicompost, with more growth occurring in combinations of pig manure vermicompost treated regularly with a liquid fertilizer solution than in those with no fertilizer applied. Some of the growth enhancement in these mixtures seemed to be related to the combined effects of improved porosity, aeration and water retention in the medium and the high nitrate content of the substrate, which produced an increased uptake of nitrogen by the plant tissues, resulting in increased plant growth. When the tomato seedlings were

  11. A Meta-Analysis of the Impact of Anaerobic Soil Disinfestation on Pest Suppression and Yield of Horticultural Crops

    PubMed Central

    Shrestha, Utsala; Augé, Robert M.; Butler, David M.

    2016-01-01

    Anaerobic soil disinfestation (ASD) is a proven but relatively new strategy to control soil borne pests of horticultural crops through anaerobic decomposition of organic soil amendments. The ASD technique has primarily been used to control soil borne pathogens; however, this technique has also shown potential to control plant parasitic nematodes and weeds. ASD can utilize a broad range of carbon (C) amendments and optimization may improve efficacy across environments. In this context, a meta-analysis using a random-effects model was conducted to determine effect sizes of the ASD effect on soil borne pathogens (533 studies), plant parasitic nematodes (91 studies), and weeds (88 studies) compared with unamended controls. Yield response to ASD was evaluated (123 studies) compared to unamended and fumigated controls. We also examined moderator variables for environmental conditions and amendments to explore the impact of these moderators on ASD effectiveness on pests and yield. Across all pathogen types with the exception of Sclerotinia spp., ASD studies show suppression of bacterial, oomycete and fungal pathogens (59 to 94%). Pathogen suppression was effective under all environmental conditions (50 to 94%) and amendment types (53 to 97%), except when amendments were applied at rates less than 0.3 kg m-2. The ASD effect ranged from 15 to 56% for nematode suppression and 32 to 81% for weed suppression, but these differences were not significant. Significant nematode moderators included study type, soil type, sampling depth, incubation period, and use of mixed amendments. Weed suppression due to ASD showed significant heterogeneity for all environmental conditions, confirming that these studies do not share a common effect size. Total crop yield was not reduced by ASD when compared to a fumigant control and yield was significantly higher (30%) compared to an unamended control, suggesting ASD as a feasible option to maintain yield without chemical soil fumigants. We

  12. A Meta-Analysis of the Impact of Anaerobic Soil Disinfestation on Pest Suppression and Yield of Horticultural Crops.

    PubMed

    Shrestha, Utsala; Augé, Robert M; Butler, David M

    2016-01-01

    Anaerobic soil disinfestation (ASD) is a proven but relatively new strategy to control soil borne pests of horticultural crops through anaerobic decomposition of organic soil amendments. The ASD technique has primarily been used to control soil borne pathogens; however, this technique has also shown potential to control plant parasitic nematodes and weeds. ASD can utilize a broad range of carbon (C) amendments and optimization may improve efficacy across environments. In this context, a meta-analysis using a random-effects model was conducted to determine effect sizes of the ASD effect on soil borne pathogens (533 studies), plant parasitic nematodes (91 studies), and weeds (88 studies) compared with unamended controls. Yield response to ASD was evaluated (123 studies) compared to unamended and fumigated controls. We also examined moderator variables for environmental conditions and amendments to explore the impact of these moderators on ASD effectiveness on pests and yield. Across all pathogen types with the exception of Sclerotinia spp., ASD studies show suppression of bacterial, oomycete and fungal pathogens (59 to 94%). Pathogen suppression was effective under all environmental conditions (50 to 94%) and amendment types (53 to 97%), except when amendments were applied at rates less than 0.3 kg m(-2). The ASD effect ranged from 15 to 56% for nematode suppression and 32 to 81% for weed suppression, but these differences were not significant. Significant nematode moderators included study type, soil type, sampling depth, incubation period, and use of mixed amendments. Weed suppression due to ASD showed significant heterogeneity for all environmental conditions, confirming that these studies do not share a common effect size. Total crop yield was not reduced by ASD when compared to a fumigant control and yield was significantly higher (30%) compared to an unamended control, suggesting ASD as a feasible option to maintain yield without chemical soil fumigants. We

  13. Pig manure vermicompost as a component of a horticultural bedding plant medium: effects on physicochemical properties and plant growth.

    PubMed

    Atiyeh, R M; Edwards, C A; Subler, S; Metzger, J D

    2001-05-01

    This experiment was designed to characterize the physical, chemical and microbial properties of a standard commercial horticultural, greenhouse container, bedding plant medium (Metro-Mix 360), that had been substituted with a range of increasing concentrations (0%, 5%, 10%, 25%, 50% and 100% by volume) of pig manure vermicompost and to relate these properties to plant growth responses. The growth trials used tomatoes (Lycopersicon esculentum Mill.), grown in the substituted media for 31 days under glasshouse conditions, with seedling growth recorded in 20 pots for each treatment. Half of the tomato seedlings (10 pots per treatment) were watered daily with liquid inorganic fertilizer while the other half received water only. The percentage total porosity, percentage air space, pH and ammonium concentrations of the container medium all decreased significantly, after substitution of Metro-Mix 360 with equivalent amounts of pig manure vermicompost; whereas bulk density, container capacity, electrical conductivity, overall microbial activity and nitrate concentrations, all increased with increasing substitutions of vermicompost. The growth of tomato seedlings in the potting mixtures containing 100% pig manure vermicompost was reduced, possibly as a result of high soluble salt concentrations in the vermicompost and poorer porosity and aeration. The growth of tomato seedlings was greatest after substitution of Metro-Mix 360 with between 25% and 50% pig manure vermicompost, with more growth occurring in combinations of pig manure vermicompost treated regularly with a liquid fertilizer solution than in those with no fertilizer applied. Some of the growth enhancement in these mixtures seemed to be related to the combined effects of improved porosity, aeration and water retention in the medium and the high nitrate content of the substrate, which produced an increased uptake of nitrogen by the plant tissues, resulting in increased plant growth. When the tomato seedlings were

  14. A Meta-Analysis of the Impact of Anaerobic Soil Disinfestation on Pest Suppression and Yield of Horticultural Crops.

    PubMed

    Shrestha, Utsala; Augé, Robert M; Butler, David M

    2016-01-01

    Anaerobic soil disinfestation (ASD) is a proven but relatively new strategy to control soil borne pests of horticultural crops through anaerobic decomposition of organic soil amendments. The ASD technique has primarily been used to control soil borne pathogens; however, this technique has also shown potential to control plant parasitic nematodes and weeds. ASD can utilize a broad range of carbon (C) amendments and optimization may improve efficacy across environments. In this context, a meta-analysis using a random-effects model was conducted to determine effect sizes of the ASD effect on soil borne pathogens (533 studies), plant parasitic nematodes (91 studies), and weeds (88 studies) compared with unamended controls. Yield response to ASD was evaluated (123 studies) compared to unamended and fumigated controls. We also examined moderator variables for environmental conditions and amendments to explore the impact of these moderators on ASD effectiveness on pests and yield. Across all pathogen types with the exception of Sclerotinia spp., ASD studies show suppression of bacterial, oomycete and fungal pathogens (59 to 94%). Pathogen suppression was effective under all environmental conditions (50 to 94%) and amendment types (53 to 97%), except when amendments were applied at rates less than 0.3 kg m(-2). The ASD effect ranged from 15 to 56% for nematode suppression and 32 to 81% for weed suppression, but these differences were not significant. Significant nematode moderators included study type, soil type, sampling depth, incubation period, and use of mixed amendments. Weed suppression due to ASD showed significant heterogeneity for all environmental conditions, confirming that these studies do not share a common effect size. Total crop yield was not reduced by ASD when compared to a fumigant control and yield was significantly higher (30%) compared to an unamended control, suggesting ASD as a feasible option to maintain yield without chemical soil fumigants. We

  15. A Meta-Analysis of the Impact of Anaerobic Soil Disinfestation on Pest Suppression and Yield of Horticultural Crops

    PubMed Central

    Shrestha, Utsala; Augé, Robert M.; Butler, David M.

    2016-01-01

    Anaerobic soil disinfestation (ASD) is a proven but relatively new strategy to control soil borne pests of horticultural crops through anaerobic decomposition of organic soil amendments. The ASD technique has primarily been used to control soil borne pathogens; however, this technique has also shown potential to control plant parasitic nematodes and weeds. ASD can utilize a broad range of carbon (C) amendments and optimization may improve efficacy across environments. In this context, a meta-analysis using a random-effects model was conducted to determine effect sizes of the ASD effect on soil borne pathogens (533 studies), plant parasitic nematodes (91 studies), and weeds (88 studies) compared with unamended controls. Yield response to ASD was evaluated (123 studies) compared to unamended and fumigated controls. We also examined moderator variables for environmental conditions and amendments to explore the impact of these moderators on ASD effectiveness on pests and yield. Across all pathogen types with the exception of Sclerotinia spp., ASD studies show suppression of bacterial, oomycete and fungal pathogens (59 to 94%). Pathogen suppression was effective under all environmental conditions (50 to 94%) and amendment types (53 to 97%), except when amendments were applied at rates less than 0.3 kg m-2. The ASD effect ranged from 15 to 56% for nematode suppression and 32 to 81% for weed suppression, but these differences were not significant. Significant nematode moderators included study type, soil type, sampling depth, incubation period, and use of mixed amendments. Weed suppression due to ASD showed significant heterogeneity for all environmental conditions, confirming that these studies do not share a common effect size. Total crop yield was not reduced by ASD when compared to a fumigant control and yield was significantly higher (30%) compared to an unamended control, suggesting ASD as a feasible option to maintain yield without chemical soil fumigants. We

  16. Nutrient removal from horticultural wastewater by benthic filamentous algae Klebsormidium sp., Stigeoclonium spp. and their communities: From laboratory flask to outdoor Algal Turf Scrubber (ATS).

    PubMed

    Liu, Junzhuo; Danneels, Bram; Vanormelingen, Pieter; Vyverman, Wim

    2016-04-01

    Benthic filamentous algae have evident advantages in wastewater treatment over unicellular microalgae, including the ease in harvesting and resistance to predation. To assess the potentials of benthic filamentous algae in treating horticultural wastewater under natural conditions in Belgium, three strains and their mixture with naturally wastewater-borne microalgae were cultivated in 250 ml Erlenmeyer flasks in laboratory as well as in 1 m(2) scale outdoor Algal Turf Scrubber (ATS) with different flow rates. Stigeoclonium competed well with the natural wastewater-borne microalgae and contributed to most of the biomass production both in Erlenmeyer flasks and outdoor ATS at flow rates of 2-6 L min(-1) (water velocity 3-9 cm s(-1)), while Klebsormidium was not suitable for growing in horticultural wastewater under the tested conditions. Flow rate had great effects on biomass production and nitrogen removal, while phosphorus removal was less influenced by flow rate due to other mechanisms than assimilation by algae. PMID:26841229

  17. Analysis of the Fungicide Boscalid in Horticultural Crops Using an Enzyme-Linked Immunosorbent Assay and an Immunosensor Based on Surface Plasmon Resonance.

    PubMed

    Hirakawa, Yuki; Yamasaki, Tomomi; Harada, Ayako; Ohtake, Toshiya; Adachi, Kayo; Iwasa, Seiji; Narita, Hiroshi; Miyake, Shiro

    2015-09-16

    A direct competitive enzyme-linked immunosorbent assay (dc-ELISA) and an immunosensor based on surface plasmon resonance (SPR-sensor) were developed for fungicide boscalid determination in horticultural crops. To produce antiboscalid monoclonal antibodies (MoAb BSC7 and MoAb BSC72) for these assays, a hapten of boscalid was synthesized and conjugated to keyhole limpet hemocyanin for Balb/c mouse immunization. The working range of the dc-ELISA was 0.8-16 ng/mL with MoAb BSC7 and 2.5-120 ng/mL with MoAb BSC72, and that of the SPR-sensor was 17-80 ng/mL with MoAb BSC7. The dc-ELISA and SPR-sensor were compared for their sensitivity in determining boscalid residues at the maximum residue limit of 1-40 mg/kg for horticultural crops in Japan. Recovery of the spiked boscalid was 85-109% by the SPR-sensor and 100-124% by the dc-ELISA. On real tomato samples, the results obtained by both of these immunoassays correlated well with the results obtained by high-performance liquid chromatography. PMID:26340386

  18. Nutrient removal from horticultural wastewater by benthic filamentous algae Klebsormidium sp., Stigeoclonium spp. and their communities: From laboratory flask to outdoor Algal Turf Scrubber (ATS).

    PubMed

    Liu, Junzhuo; Danneels, Bram; Vanormelingen, Pieter; Vyverman, Wim

    2016-04-01

    Benthic filamentous algae have evident advantages in wastewater treatment over unicellular microalgae, including the ease in harvesting and resistance to predation. To assess the potentials of benthic filamentous algae in treating horticultural wastewater under natural conditions in Belgium, three strains and their mixture with naturally wastewater-borne microalgae were cultivated in 250 ml Erlenmeyer flasks in laboratory as well as in 1 m(2) scale outdoor Algal Turf Scrubber (ATS) with different flow rates. Stigeoclonium competed well with the natural wastewater-borne microalgae and contributed to most of the biomass production both in Erlenmeyer flasks and outdoor ATS at flow rates of 2-6 L min(-1) (water velocity 3-9 cm s(-1)), while Klebsormidium was not suitable for growing in horticultural wastewater under the tested conditions. Flow rate had great effects on biomass production and nitrogen removal, while phosphorus removal was less influenced by flow rate due to other mechanisms than assimilation by algae.

  19. Heavy metals in the irrigation water, soils and vegetables in the Philippi horticultural area in the Western Cape Province of South Africa.

    PubMed

    Malan, M; Müller, F; Cyster, L; Raitt, L; Aalbers, J

    2015-01-01

    The aims of this study were to investigate the extent of heavy metal contamination in the Philippi horticultural area in the Western Cape Province, South Africa. Concentrations of Cd, Cr, Cu, Mn, Ni, Pb and Zn were determined in the irrigation water, soils and vegetables in both winter and summer cropping seasons with an ICP-AES and tested against certified standards. Differences were found in heavy metal concentrations between the winter and summer cropping seasons in the irrigation water, soils and vegetables. Certain heavy metals exceeded the maximum permissible concentrations in the irrigation water, soils and vegetables produced in South Africa. These toxic concentrations were predominantly found in the summer cropping season for the soils and in the crops produced in winter. It is thus suggested that further studies are carried out in the Philippi horticultural area to determine the sources of the heavy metals to try and mitigate the inputs thereof and therefore reduce the amount of heavy metals entering the human food chain.

  20. CLUSTERS OF TASKS PERFORMED BY WASHINGTON STATE FARM OPERATORS ENGAGED IN SEVEN TYPES OF AGRICULTURAL PRODUCTION--GRAIN, DAIRY, FORESTRY, LIVESTOCK, POULTRY, HORTICULTURE, AND GENERAL FARMING. REPORT NO. 27.

    ERIC Educational Resources Information Center

    LONG, GILBERT A.

    THE OBJECTIVE OF THIS STUDY WAS TO OBTAIN UP-TO-DATE FACTS ABOUT CLUSTERS OF TASKS PERFORMED BY WASHINGTON STATE FARM OPERATORS ENGAGED PRIMARILY IN PRODUCING GRAIN, LIVESTOCK, DAIRY COMMODITIES, POULTRY, FOREST PRODUCTS, HORTICULTURAL COMMODITIES, AND GENERAL FARMING COMMODITIES. FROM A RANDOM SAMPLE OF 267 FARMERS REPRESENTING THOSE CATEGORIES…

  1. Experiments in Horticultural Science.

    ERIC Educational Resources Information Center

    Arbel, Illil

    1992-01-01

    Investigates the use of temperature and light to change the usual intervals for plant germinating, sprouting, and flowering. Provides simple experimental procedures and discussions regarding photoperiodism, forced branching before spring, and various types of seed dormancy, including physical dormancy, physiological dormancy, and double dormancy.…

  2. Horticulture: Grounds Maintenance Employee.

    ERIC Educational Resources Information Center

    Sims, James; And Others

    The unit of individualized learning activities is designed to provide training in grounds maintenance. The materials in the unit are divided into two sections. The developmental or preliminary phase (15 pages) is for use by the instructor and includes brief descriptions of the job and of the student population, along with listings of the specific…

  3. Dissolved Organic Matter (DOM) From Different Composts: Comparative Study Of Properties And Allelochemical Effects On Horticultural Plants

    NASA Astrophysics Data System (ADS)

    Traversa, A.; Loffredo, E.; Gattullo, C. E.; Senesi, N.

    2009-04-01

    Dissolved organic matter (DOM) from compost has a major role in numerous chemical and biological processes occurring in the bulk substrate or compost amended soil, and can exert allelochemical effects on plant germination and growth. The objectives of this study were: (i) to investigate comparatively the main properties of three DOM fractions isolated from a green compost (DOMGC), a mixed compost (DOMMC) and a green coffee compost (DOMGCC), and (ii) to evaluate their allelochemical effects on the germination and early growth of two horticultural plants of worldwide interest such as tomato and lettuce. The DOM was extracted from each compost with distilled water (1/10 w/v) under mechanical shaking for 15 min. The suspension was then centrifuged at 6000 rpm for 15 min and filtered sequentially through filters with decreasing particle size retention (from 11 to 0.45 μm). Each DOM sample was characterized by means of pH, electrical conductivity, total organic carbon (TOC), E4/E6 ratio, fluorescence and FT IR spectroscopies and HPLC analysis. Comparative evaluation of the three DOM samples indicated the occurrence of significant differences among them. In particular, the pH value was similar and close to neutrality for DOMMC and DOMGC, whereas it resulted alkaline (pH 8.3) for DOMGCC. The EC values were also similar (about 3.2 mS/cm) for DOMMC and DOMGC and almost half value for DOMGCC. The TOC content, the E4/E6 ratio, the ɛ280 value and the humification index followed the same order: DOMGCC>DOMMC>DOMGC. The fluorescence analysis of the three DOM samples showed the presence of a common fluorophore unit associated to simple aromatic units such as phenolic-like, hydroxy-substituted benzoic and cinnamic acid derivatives. The peak wavelengths observed in the fluorescence emission, excitation and synchronous scan spectra of DOMGCC were generally higher than those of the two other DOM samples, which can be ascribed to a more extended aromatic system of the former. The FT

  4. Impacts of Horticultural Mineral Oils and Two Insecticide Practices on Population Fluctuation of Diaphorina citri and Spread of Huanglongbing in a Citrus Orchard in Sarawak

    PubMed Central

    Leong, Stephen Chan Teck; Abang, Fatimah; Beattie, Andrew; Kueh, Roland Jui Heng; Wong, Sing King

    2012-01-01

    Aspects of the incidence and spread of the citrus disease huanglongbing (HLB) in relation to the vector Diaphorina citri population fluctuation were studied from January 1999 to December 2001 seasons in a 0.8 ha citrus orchard at Jemukan (1° 33′N, 110° 41′E), Southwest Sarawak in Malaysia. In relation to insecticide and horticultural mineral oils (HMOs) use, levels of HLB infection rose quite rapidly over the next 3 years in the unsprayed control and less rapidly in the other treatments such as imidacloprid, nC24HMO, and triazophos/cypermethrin/chlorpyrifos. Levels of HLB as determined by Polymerase Chain Reaction (PCR) were 42.2%, 9.4%, 11.4%, and 22.7%, respectively. The effects of nC24HMO and conventional pesticides on the citrus psyllid population and parasitoids in citrus orchard were also determined. PMID:22629178

  5. An outbreak of Pontiac fever due to Legionella longbeachae serogroup 2 found in potting mix in a horticultural nursery in New Zealand.

    PubMed

    Cramp, G J; Harte, D; Douglas, N M; Graham, F; Schousboe, M; Sykes, K

    2010-01-01

    Previous outbreaks of Pontiac fever have invariably been associated with water droplet spread of Legionella spp. In January 2007 three workers from a horticultural nursery were admitted to hospital with non-pneumonic legionellosis. Investigations showed that a working party of ten people had been exposed to aerosolized potting mix; nine of these workers met the case definition for Pontiac fever. The presence of genetically indistinguishable Legionella longbeachae serogroup 2 was demonstrated in clinical specimens from two hospitalized workers and in the potting mix to which they had been exposed. A further seven cases were diagnosed by serological tests. This is the first documented outbreak of Pontiac fever from L. longbeachae serogroup 2 confirmed from inhalation of potting mix. Pontiac fever is likely to be under-diagnosed. We advocate the introduction of an industry standard that ensures the use of face masks when handling potting mix and attaching masks and warning labels to potting mix bags sold to the public.

  6. Impacts of horticultural mineral oils and two insecticide practices on population fluctuation of Diaphorina citri and spread of Huanglongbing in a citrus orchard in Sarawak.

    PubMed

    Leong, Stephen Chan Teck; Abang, Fatimah; Beattie, Andrew; Kueh, Roland Jui Heng; Wong, Sing King

    2012-01-01

    Aspects of the incidence and spread of the citrus disease huanglongbing (HLB) in relation to the vector Diaphorina citri population fluctuation were studied from January 1999 to December 2001 seasons in a 0.8 ha citrus orchard at Jemukan (1° 33'N, 110° 41'E), Southwest Sarawak in Malaysia. In relation to insecticide and horticultural mineral oils (HMOs) use, levels of HLB infection rose quite rapidly over the next 3 years in the unsprayed control and less rapidly in the other treatments such as imidacloprid, nC24HMO, and triazophos/cypermethrin/chlorpyrifos. Levels of HLB as determined by Polymerase Chain Reaction (PCR) were 42.2%, 9.4%, 11.4%, and 22.7%, respectively. The effects of nC(24)HMO and conventional pesticides on the citrus psyllid population and parasitoids in citrus orchard were also determined.

  7. An outbreak of Pontiac fever due to Legionella longbeachae serogroup 2 found in potting mix in a horticultural nursery in New Zealand.

    PubMed

    Cramp, G J; Harte, D; Douglas, N M; Graham, F; Schousboe, M; Sykes, K

    2010-01-01

    Previous outbreaks of Pontiac fever have invariably been associated with water droplet spread of Legionella spp. In January 2007 three workers from a horticultural nursery were admitted to hospital with non-pneumonic legionellosis. Investigations showed that a working party of ten people had been exposed to aerosolized potting mix; nine of these workers met the case definition for Pontiac fever. The presence of genetically indistinguishable Legionella longbeachae serogroup 2 was demonstrated in clinical specimens from two hospitalized workers and in the potting mix to which they had been exposed. A further seven cases were diagnosed by serological tests. This is the first documented outbreak of Pontiac fever from L. longbeachae serogroup 2 confirmed from inhalation of potting mix. Pontiac fever is likely to be under-diagnosed. We advocate the introduction of an industry standard that ensures the use of face masks when handling potting mix and attaching masks and warning labels to potting mix bags sold to the public. PMID:19781115

  8. Horticultural therapy as a measure for recovery support of regional community in the disaster area: a preliminary experiment for forty five women who living certain region in the coastal area of Miyagi Prefecture.

    PubMed

    Kotozaki, Yuka

    2014-01-01

    Three years have passed since the earthquake, in the coastal areas in the disaster area, by population transfer or the like from the temporary housing, the importance of the regeneration and revitalization of the local community has been pointed out. This study performed a preliminary study to aim at the psychological inspection about an effect of the horticultural therapy as the means of the local community reproduction support of the disaster area. Forty five women who are living in the coastal area of Miyagi Prefecture participated in this study. They experienced the Great East Japan earthquake in 2011 and suffered some kind of damage caused by the earthquake. The participants were assigned to two groups, the intervention group and the control group, via a random draw using a computer. The HI group attended the horticultural therapy intervention (HT intervention) sessions for 16 weeks. The HT intervention was designed in collaboration with a horticultural therapist and clinical psychologists. This intervention comprised a total of 16 weekly sessions (120 min each) at the community center and 15 minutes per day at participants' homes. We used five psychological measures for an intervention evaluation. The HI group showed a significant increase in post- intervention SCI-2 total scores, post- intervention SCI-2 membership scores, post-intervention SCI-2 influence scores, post- intervention SCI-2 meeting needs scores, post- intervention SCI-2 shared emotional connection scores, and post- intervention RSES score. We believe that these results suggest the effectiveness of the horticultural therapy as the means of the local community reproduction.

  9. Tri-Tek (Petroleum Horticultural Oil) and Beauveria bassiana: Use in Eradication Strategies for Bemisia tabaci Mediterranean Species in UK Glasshouses

    PubMed Central

    Cuthbertson, Andrew G. S.; Collins, Debbie A.

    2015-01-01

    The sweetpotato whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is a pest of global importance on both outdoor and glasshouse crops. To date, B. tabaci has not become established in the UK. The UK holds Protected Zone status against this pest and, as a result, B. tabaci entering on plant material is subjected to a policy of eradication. Mediterranean species is now the most prevalent Bemisia species entering the UK. Increasing neonicotinoid resistance is becoming increasingly widespread and problematic with this species. As a result, this continues to pose problems for eradication strategies. The current study investigates the efficacy of Tri-Tek (a petroleum horticultural oil awaiting UK registration) and the fungus Beauveria bassiana to act as control agents against Mediterranean species in UK glasshouses. Tri-Tek provided 100% egg mortality compared to 74% for B. bassiana. When tested against second instar larvae, mortalities of 69% and 65% respectively were achieved. Both products can be successfully “tank-mixed”. A tank-mix application provided 95.5% mortality of second instar larvae under glasshouse conditions. The potential integration of both products into current Bemisia eradication strategies in UK glasshouses is discussed. PMID:26463071

  10. Farmyard manures: the major agronomic sources of heavy metals in the Philippi Horticultural Area in the Western Cape Province of South Africa.

    PubMed

    Malan, Marÿke; Müller, Francuois; Raitt, Lincoln; Aalbers, Johannes; Cyster, Lilburne; Brendonck, Luc

    2015-11-01

    Heavy metal toxicity in agro-ecosystems is a global problem. Recently, it has been indicated that the soils used for agriculture and the fresh produce grown on these soils in the Philippi Horticultural Area (PHA) contains heavy metals exceeding the maximum permissible concentrations thereof in South Africa. This study was therefore aimed at evaluating the concentrations of heavy metals in the soils and vegetables produced in the PHA, as well as to determine the major agronomic sources of these metals in this area. Cu, Pb, and Zn concentrations in the soils exceeded the maximum permissible concentrations of 6.6, 6.6, and 46 mg/kg, respectively. Cd, Pb, and Zn concentrations in the vegetables also exceeded the maximum permissible concentrations of 0.1, 0.5, and 40 mg/kg, respectively. The biggest agronomic contributors of these heavy metals to the soils in the PHA were found to be the farmyard manures. Knowing what the major sources of these heavy metals are, it is important to determine ways to mitigate the inputs thereof, as well as to remove existing concentrations from the soils without contaminating the groundwater resources in the area.

  11. Farmyard manures: the major agronomic sources of heavy metals in the Philippi Horticultural Area in the Western Cape Province of South Africa.

    PubMed

    Malan, Marÿke; Müller, Francuois; Raitt, Lincoln; Aalbers, Johannes; Cyster, Lilburne; Brendonck, Luc

    2015-11-01

    Heavy metal toxicity in agro-ecosystems is a global problem. Recently, it has been indicated that the soils used for agriculture and the fresh produce grown on these soils in the Philippi Horticultural Area (PHA) contains heavy metals exceeding the maximum permissible concentrations thereof in South Africa. This study was therefore aimed at evaluating the concentrations of heavy metals in the soils and vegetables produced in the PHA, as well as to determine the major agronomic sources of these metals in this area. Cu, Pb, and Zn concentrations in the soils exceeded the maximum permissible concentrations of 6.6, 6.6, and 46 mg/kg, respectively. Cd, Pb, and Zn concentrations in the vegetables also exceeded the maximum permissible concentrations of 0.1, 0.5, and 40 mg/kg, respectively. The biggest agronomic contributors of these heavy metals to the soils in the PHA were found to be the farmyard manures. Knowing what the major sources of these heavy metals are, it is important to determine ways to mitigate the inputs thereof, as well as to remove existing concentrations from the soils without contaminating the groundwater resources in the area. PMID:26508018

  12. Genome-Wide Differentiation of Various Melon Horticultural Groups for Use in GWAS for Fruit Firmness and Construction of a High Resolution Genetic Map

    PubMed Central

    Nimmakayala, Padma; Tomason, Yan R.; Abburi, Venkata L.; Alvarado, Alejandra; Saminathan, Thangasamy; Vajja, Venkata G.; Salazar, Germania; Panicker, Girish K.; Levi, Amnon; Wechter, William P.; McCreight, James D.; Korol, Abraham B.; Ronin, Yefim; Garcia-Mas, Jordi; Reddy, Umesh K.

    2016-01-01

    Melon (Cucumis melo L.) is a phenotypically diverse eudicot diploid (2n = 2x = 24) has climacteric and non-climacteric morphotypes and show wide variation for fruit firmness, an important trait for transportation and shelf life. We generated 13,789 SNP markers using genotyping-by-sequencing (GBS) and anchored them to chromosomes to understand genome-wide fixation indices (Fst) between various melon morphotypes and genomewide linkage disequilibrium (LD) decay. The FST between accessions of cantalupensis and inodorus was 0.23. The FST between cantalupensis and various agrestis accessions was in a range of 0.19–0.53 and between inodorus and agrestis accessions was in a range of 0.21–0.59 indicating sporadic to wide ranging introgression. The EM (Expectation Maximization) algorithm was used for estimation of 1436 haplotypes. Average genome-wide LD decay for the melon genome was noted to be 9.27 Kb. In the current research, we focused on the genome-wide divergence underlying diverse melon horticultural groups. A high-resolution genetic map with 7153 loci was constructed. Genome-wide segregation distortion and recombination rate across various chromosomes were characterized. Melon has climacteric and non-climacteric morphotypes and wide variation for fruit firmness, a very important trait for transportation and shelf life. Various levels of QTLs were identified with high to moderate stringency and linked to fruit firmness using both genome-wide association study (GWAS) and biparental mapping. Gene annotation revealed some of the SNPs are located in β-D-xylosidase, glyoxysomal malate synthase, chloroplastic anthranilate phosphoribosyltransferase, and histidine kinase, the genes that were previously characterized for fruit ripening and softening in other crops. PMID:27713759

  13. Evolution of water repellency of organic growing media used in Horticulture and consequences on hysteretic behaviours of the water retention curve

    NASA Astrophysics Data System (ADS)

    Michel, Jean-Charles; Qi, Guifang; Charpentier, Sylvain; Boivin, Pascal

    2010-05-01

    Most of growing media used in horticulture (particularly peat substrates) shows hysteresis phenomena during desiccation and rehydration cycles, which greatly affects their hydraulic properties. The origins of these properties have often been related to one or several of the specific mechanisms such as the non-geometrical uniformity of the pores (also called ‘ink bottle' effect), presence of trapped air, shrinkage-swelling phenomena, and changes in water repellency. However, recent results showed that changes in wettability during desiccation and rehydration could be considered as one of the main factors leading to hysteretic behaviour in these materials with high organic matter contents (Naasz et al., 2008). The general objective was to estimate the evolutions of changes in water repellency on the water retention properties and associated hysteresis phenomena in relation to the intensity and the number of drying/wetting cycles. For this, simultaneous shrinkage/swelling and water retention curves were obtained using method previously developed for soil shrinkage analysis by Boivin (2006) that we have adapted for growing media and to their physical behaviours during rewetting. The experiment was performed in a climatic chamber at 20°C. A cylinder with the growing medium tested was placed on a porous ceramic disk which is used to control the pressure and to full/empty water of the sample. The whole of the device was then placed on a balance to record the water loss/storage with time; whereas linear displacement transducers were used to measure the changes in sample height and diameter upon drying and wetting in the axial and radial directions. Ceramic cups (2 cm long and 0.21 cm diameter) connected to pressure transducers were inserted in the middle of the samples to record the water pressure head. In parallell, contact angles were measured by direct droplet method at different steps during the drying/rewetting cycles. First results obtained on weakly decomposed

  14. Transgenic horticultural crops in Asia

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Modern biotechnology applications, including genetic engineering, are a powerful tool to complement the conventional methods of crop improvement. Asia currently has three countries cultivating biotech/transgenic crops – China, India, and the Philippines, but only China commercially grows a transgen...

  15. Horticulture. Tech Prep Competency Profile.

    ERIC Educational Resources Information Center

    Ohio State Univ., Wooster. Agricultural Technical Inst.

    This tech prep competency profile (TCP), which was developed by a consortium of Ohio educators and business/industry representatives, lists the competencies that have been identified as necessary for employment in the following occupations: nursery technician; golf course superintendent; landscape designer/manager; lawn care specialist; tree care…

  16. Bitter Gourd: Botany, Horticulture, Breeding

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Bitter gourd fruits are a good source of carbohydrates, proteins, vitamins, and minerals and have the highest nutritive value among cucurbits. Moreover, the crude protein content (11.4-20.9 g.kg-1) of bitter gourd fruits is higher than that of tomato and cucumber. This book chapter focuses on the ...

  17. 2005 Mississippi Curriculum Framework: Secondary Horticulture. (Program CIP: 01.0601 - Applied Horticulture/Horticultural Operations, General)

    ERIC Educational Resources Information Center

    Research and Curriculum Unit, 2005

    2005-01-01

    Secondary vocational-technical education programs in Mississippi are faced with many challenges resulting from sweeping educational reforms at the national and state levels. Schools and teachers are increasingly being held accountable for providing true learning activities to every student in the classroom. This accountability is measured through…

  18. Organic Horticulture in the Secondary School

    ERIC Educational Resources Information Center

    Marrocco, Aldo

    2009-01-01

    This report is based on five years experience working with primary and secondary school teachers in Italy to develop organic farming as an activity for students. The tasks involved were intended to develop our students' environmental awareness, allow them to produce food organically and show that market gardening could be a productive hobby. In…

  19. Competence Development of Entrepreneurs in Innovative Horticulture

    ERIC Educational Resources Information Center

    Mulder, Martin; Lans, Thomas; Verstegen, Jos; Biemans, Harm; Meijer, Ypie

    2007-01-01

    Purpose: The purpose of this paper is to study the learning of entrepreneurs in authentic learning environments. The research questions are: How do entrepreneurs assess their compentencies, and how do employees and external consultants assess the compentencies of these entrepreneurs? What are the competence strengths and weaknesses of…

  20. Florigen unmasked - exciting prospects for horticulture

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The pioneer work of Garner and Allard, who coined the term “photoperiod” to describe the dramatic effects of day length on flowering of many plants, led to the widespread commercial use of photoperiod modification to control flowering in plants, particularly ornamentals. M.K. Chailakhyan suggested t...

  1. COURSE OUTLINE FOR HORTICULTURE-SERVICE OCCUPATIONS.

    ERIC Educational Resources Information Center

    Ohio State Univ., Columbus. Center for Vocational and Technical Education.

    THE PUBLICATION OF THIS AND OTHER DOCUMENTS IN THE SERIES ON OFF-FARM AGRICULTURAL OCCUPATIONS WAS THE RESULT OF AN EFFORT TO ASSIST STATE AND LOCAL LEADERS IN DEVELOPING TRAINING PROGRAMS. PRIME CONSIDERATION WAS GIVEN TO DATA FROM SEVERAL STATE STUDIES AND DEVELOPMENT WAS BY A NATIONAL TASK FORCE. THE PURPOSE OF THE COURSE IS TO ASSIST HIGH…

  2. Transgenic horticultural crops: challenges and opportunities

    Technology Transfer Automated Retrieval System (TEKTRAN)

    At the dawn of the twenty-first century, food insecurity and malnutrition continue to plague humankind, especially in third-world countries. It has been estimated that world food supplies must increase by up to 50% over the next 20 years due to population growth, even while farming land is being ra...

  3. Vocational Horticulture for Persons with Mental Retardation.

    ERIC Educational Resources Information Center

    Kern, William H.; And Others

    The study explored methods and techniques for training mentally retarded adults to perform gardening tasks. A total of 31 subjects ages 21 to 48 (IQ range 32-89) participated in the study, which consisted of three phases. In an initial pilot study, experimentation without subjects resulted in the development of modified tools (e.g., notched…

  4. Integrated architectures for a horticultural application

    NASA Astrophysics Data System (ADS)

    Spooner, Natalie R.; Rodrigo, T. Surangi

    1998-10-01

    For many applications, which involve the processing and handling of highly variable natural products, conventional automation techniques are inadequate. Field applications involving the processing and handling of these products have the additional complication of dealing with a dynamically changing environment. Automated systems for these applications must be capable of sensing the variability of each product item and adjusting the way each product item is processed to accommodate that variability. For automation to be feasible, both fast processing of sensor information and fast determination of how product items are handled, is vital. The combination of sensor equipped mobile robotic systems with artificial intelligence techniques is a potential solution for the automation of many of these applications. The aim of this research is to develop a software architecture which incorporates robotic task planning and control for a variety of applications involving the processing of naturally varying products. In this paper we discuss the results from the initial laboratory trials for an asparagus harvesting application.

  5. Rhubarb botany, horticulture, and genetic resources

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Rhubarb (Rheum spp.) is native to areas around the Tibetan Plateau and has been cultivated for medicinal purposes for approximately 4,000 years. The roots (rhizomes) of species in this genus are rich in anthraquinones and other biochemicals that may show promise in treating or preventing cancer, dia...

  6. Soil carbon as affected by horticultural species and growth media

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Increasing atmospheric concentrations of greenhouse gases (GHG) are widely believed to be a main contributing factor to climate change. United States agriculture is one of the largest contributors of GHG emissions, trailing only energy production, which leads scientists to believe that emissions fro...

  7. Horticultural lighting using HID/light pipe systems

    SciTech Connect

    Bulley, N.R.; Phillips, D.

    1985-01-01

    The recent development of a light pipe makes it possible to separate a light source from the area to be illuminated. The paper reports on the light intensity and distribution for selected lamp/light pipe systems for use in commercial plant growth chambers, propagation rooms and tissue culture facilities.

  8. Mode of action of air pollutants in injuring horticultural plants

    SciTech Connect

    Tibbitts, T.W.; Kobriger, J.M.

    1983-10-01

    An attempt has been made to condense the great volume of literature for many different air pollutants and from many different plant systems. Only those responses that have been reported for several species are emphasized and the discussion is limited to responses obtained with intact plants. The general outline provides a focus; uptake becomes the crucial aspect of whether or not plants are injured by air pollutants. Pollutants must get into the plant to cause injury and the primary portal of entry is through the open stomata. Once into the plant, pollutants alter biochemical reactions, resulting in cell injury and causing economic losses for horticulturists. The authors have developed this outline for the pollutants sulfur dioxide (SO/sub 2/), hydrogen fluoride (HF), ozone (O/sub 3/), nitrogen dioxide (NO/sub 2/), and peroxyacetyl nitrate (PAN), which are the most common and and most damaging gaseous pollutants in the ambient environment.

  9. Horticultural traits associated with cacao accessions recommended for Puerto Rico

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Cacao (Theobroma cacao L.) is an important agricultural product from which the international chocolate industry is based upon. Increasing demand for chocolate, especially in emerging markets in Asia, coupled with reduced worldwide production has led to shortfalls in cacao ‘bean’ supplies. Deficits...

  10. EFFICACY OF NOVEL WATER DISINFECTION TECHNIQUES IN HORTICULTURAL NUTRIENT RECYCLING.

    PubMed

    Heungens, K; Clierinck, M; Inghelbrecht, S; Vissers, M

    2015-01-01

    Hydroponic systems used for growing potted ornamentals in greenhouses are commonly ebb-and-flow irrigation systems. The drainage water is usually recycled to save water and nutrients. To avoid the spread of pathogens in these closed irrigation systems, disinfection of the recycled water is standard practice. Growers can use slow sand filtration or UV-radiation techniques, but these methods are often either not sulted for specific problems or they require an excessively large investment. The objective of this study was to test less expensive but effective alternative disinfection systems. The efficacy of five disinfection systems against fungi and oomycetes was determined: Aqua-Hort (based on Cu-ions), Reciclean (performic acid), D1-OX Forte (CIO2), ECA (electrochemically activated water = anodic oxidation: hypochlorite and free radicals) and Newtec (also anodic oxidation). These five systems and a no-sterilization control were integrated in small closed ebb-and-flow circuits with nutrient solution reservoirs of 400 L each. Activity against Fusarium was excellent with ECA, good with Newtec and DI-OX Forte, moderate with high doses of Reciclean (250 ppm H2O2 and poor with the Aqua-Hort. There was no Pythium in the ECA and Newtec systems, while still so in the Aqua-Hort system, even at high doses (up to 7 ppm Cu++). Although the Reciclean (up to 100 ppm H2O2) and Aqua-Hort systems did not perform well against the pathogens, they did very well against algae; especially Reciclean was also useful against duckweed in water and liverwort on soil substrates. Concentrations of total Cl were elevated in water, substrate and plants after treatments with ECA and Newtec; other accumulations were Cu (Aqua-Hort), Na and SO4 (DI-OX Forte). However, only on a limited number of plant species these accumulations produced phytotoxic effects.

  11. Characterization, Diagnosis & Management of Plant Viruses, Vol. 2. Horticultural Crops

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Characterization of viruses in fruit tree crops is complicated due to the fact that many cultivated fruit crops are maintained through vegetative propagation and mixed infection of several viruses in a fruit tree is a common phenomenon. Viruses have undoubtedly infected fruit trees and cause diseas...

  12. Core IV Materials for Metropolitan Agriculture/Horticulture Programs.

    ERIC Educational Resources Information Center

    Hemp, Paul; And Others

    This core curriculum guide consists of materials for use in presenting a 13-unit vocational agriculture course geared toward high school students living in metropolitan areas. Addressed in the individual units of the course are the following topics: employment in agricultural occupations, supervised occupational experience, leadership in…

  13. EFFICACY OF NOVEL WATER DISINFECTION TECHNIQUES IN HORTICULTURAL NUTRIENT RECYCLING.

    PubMed

    Heungens, K; Clierinck, M; Inghelbrecht, S; Vissers, M

    2015-01-01

    Hydroponic systems used for growing potted ornamentals in greenhouses are commonly ebb-and-flow irrigation systems. The drainage water is usually recycled to save water and nutrients. To avoid the spread of pathogens in these closed irrigation systems, disinfection of the recycled water is standard practice. Growers can use slow sand filtration or UV-radiation techniques, but these methods are often either not sulted for specific problems or they require an excessively large investment. The objective of this study was to test less expensive but effective alternative disinfection systems. The efficacy of five disinfection systems against fungi and oomycetes was determined: Aqua-Hort (based on Cu-ions), Reciclean (performic acid), D1-OX Forte (CIO2), ECA (electrochemically activated water = anodic oxidation: hypochlorite and free radicals) and Newtec (also anodic oxidation). These five systems and a no-sterilization control were integrated in small closed ebb-and-flow circuits with nutrient solution reservoirs of 400 L each. Activity against Fusarium was excellent with ECA, good with Newtec and DI-OX Forte, moderate with high doses of Reciclean (250 ppm H2O2 and poor with the Aqua-Hort. There was no Pythium in the ECA and Newtec systems, while still so in the Aqua-Hort system, even at high doses (up to 7 ppm Cu++). Although the Reciclean (up to 100 ppm H2O2) and Aqua-Hort systems did not perform well against the pathogens, they did very well against algae; especially Reciclean was also useful against duckweed in water and liverwort on soil substrates. Concentrations of total Cl were elevated in water, substrate and plants after treatments with ECA and Newtec; other accumulations were Cu (Aqua-Hort), Na and SO4 (DI-OX Forte). However, only on a limited number of plant species these accumulations produced phytotoxic effects. PMID:27141749

  14. [Importance of Chlorite P in prevention and treatment in horticulture].

    PubMed

    Szymański, J

    1993-01-01

    The Polish chlorine preparation for prophilaxis and controlling of bacterial blotch in the champignon culture and in order to carry out the general desinfection in champignon houses has been registered. This preparation is useful to general disinfection in greenhouses and other auxiliary spaces instead formalin having the mutagenic and carcinogenic properties.

  15. 2008 Mississippi Curriculum Framework: Postsecondary Irrigation Management Technology. (Program CIP:01.0699 - Applied Horticulture/Horticultural Business Services, Other)

    ERIC Educational Resources Information Center

    Oliver, Michael L.

    2008-01-01

    As the world economy continues to evolve, businesses and industries must adopt new practices and processes in order to survive. Quality and cost control, work teams and participatory management, and an infusion of technology are transforming the way people work and do business. Employees are now expected to read, write, and communicate…

  16. Agriculture, Levels 1-4. Agriculture & Commercial Horticulture, Levels 1-4. Commercial Horticulture, Levels 1-3. Environmental Conservation, Levels 2-4. National Vocational Qualifications.

    ERIC Educational Resources Information Center

    Business and Technology Education Council, London (England).

    Britain's National Vocational Qualifications (NVQs) are work qualifications that measure what an employee or potential employee can do as well as how much he or she knows and understands about a particular job. Used as written proof of usable workplace skills that can be put to profitable use by an employer, NVQs range from basic Level 1, for…

  17. The importance of determining carbon sequestration and greenhouse gas mitigation potential in ornamental horticulture

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Over the past three decades, one issue which has received significant attention from the scientific community is climate change and the possible impacts on the global environment. Increased atmospheric carbon dioxide (CO2) concentration, along with other trace gases [i.e., methane (CH4) and nitrous ...

  18. Phytosanitary irradiation for fresh horticultural commodities: generic treatments, current issues, and next steps

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Phytosanitary treatments such as irradiation disinfest host commodities of quarantine insect pests before they are exported to areas where the pests do not occur, and are often the simplest approach to overcome regulatory trade barriers and gain market access. The United States, Australia and the In...

  19. Estimating the extent and structure of trade in horticultural orchids via social media.

    PubMed

    Hinsley, Amy; Lee, Tamsin E; Harrison, Joseph R; Roberts, David L

    2016-10-01

    The wildlife trade is a lucrative industry involving thousands of animal and plant species. The increasing use of the internet for both legal and illegal wildlife trade is well documented, but there is evidence that trade may be emerging on new online technologies such as social media. Using the orchid trade as a case study, we conducted the first systematic survey of wildlife trade on an international social-media website. We focused on themed forums (groups), where people with similar interests can interact by uploading images or text (posts) that are visible to other group members. We used social-network analysis to examine the ties between 150 of these orchid-themed groups to determine the structure of the network. We found 4 communities of closely linked groups based around shared language. Most trade occurred in a community that consisted of English-speaking and Southeast Asian groups. In addition to the network analysis, we randomly sampled 30 groups from the whole network to assess the prevalence of trade in cultivated and wild plants. Of 55,805 posts recorded over 12 weeks, 8.9% contained plants for sale, and 22-46% of these posts pertained to wild-collected orchids. Although total numbers of posts about trade were relatively small, the large proportion of posts advertising wild orchids for sale supports calls for better monitoring of social media for trade in wild-collected plants. PMID:26991837

  20. Use of Dehydrated Agar to Estimate Microbial Water Quality for Horticulture Irrigation.

    PubMed

    Meador, Dustin P; Fisher, Paul R; Guy, Charles L; Harmon, Philip F; Peres, Natalia A; Teplitski, Max

    2016-07-01

    Petrifilms are dehydrated agar culture plates that have been used to quantify colony forming units (CFU) mL of either aerobic bacteria (Petrifilm-AC) or fungus (Petrifilm-YM), depending on substrate composition. Microbes in irrigation systems can indicate biofilm risk and potential clogging of irrigation emitters. The research objective was to compare counts on Petrifilms versus traditional, hydrated-agar plates using samples collected from recirculated irrigation waters and cultures of isolated known species. The estimated count (in CFU mL) from a recirculated irrigation sample after 7 d of incubation on Petrifilm-YM was only 5.5% of the count quantified using sabouraud dextrose agar (SDA) with chloramphenicol after 14 d. In a separate experiment with a known species, Petrifilm-YM did not successfully culture zoospores of . Isolates of viable zoospores were cultured successfully on potato-dextrose agar (PDA), with comparable counts with a vegetable juice medium supplemented with the antibiotics pimaricin, ampicillin, rifamycin, pentochloronitrobenzene and hymexazol (PARP-H). The quantification of pv. Begoniaceae on Petrifilm-AC was not significantly different ( < 0.05) than on PDA, but was lower than on Reasoner and Goldrich agar (R2A) or with a hemocytometer. The current formulation of Petrifilm-YM is unlikely to be a useful monitoring method for plant pathogens in irrigation water because of the inability to successfully culture oomycetes. However, Petrifilm-AC was an effective method to quantify bacteria and can provide an easy-to-use on-farm tool to monitor biofilm risk and microbial density.

  1. Evaluation of potato anaerobic digestate as a renewable alternative to peat moss in horticultural substrates

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Potato peels and other low-value wastes from potato processing are currently being used as cattle feed or fermented to produce fuel-grade ethanol. The anaerobic fermentation of food wastes, including potato processing wastes, produces biogas (principally methane), which can be used directly for heat...

  2. 26 CFR 1.48-10 - Single purpose agricultural or horticultural structures.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...) Type of animal involved; (B) Number of, and consumption rate for, each animal; (C) Climate of area; (D.... A change in the use of an agricultural structure from one species of livestock to another will cause the structure to fail the exclusive use test when the change occurs. Thus, for example, a...

  3. 26 CFR 1.48-10 - Single purpose agricultural or horticultural structures.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ...) Type of animal involved; (B) Number of, and consumption rate for, each animal; (C) Climate of area; (D.... A change in the use of an agricultural structure from one species of livestock to another will cause the structure to fail the exclusive use test when the change occurs. Thus, for example, a...

  4. 26 CFR 1.48-10 - Single purpose agricultural or horticultural structures.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ...) Type of animal involved; (B) Number of, and consumption rate for, each animal; (C) Climate of area; (D.... A change in the use of an agricultural structure from one species of livestock to another will cause the structure to fail the exclusive use test when the change occurs. Thus, for example, a...

  5. Predicting potential global distributions of two Miscanthus grasses: implications for horticulture, biofuel production, and biological invasions.

    PubMed

    Hager, Heather A; Sinasac, Sarah E; Gedalof, Ze'ev; Newman, Jonathan A

    2014-01-01

    In many regions, large proportions of the naturalized and invasive non-native floras were originally introduced deliberately by humans. Pest risk assessments are now used in many jurisdictions to regulate the importation of species and usually include an estimation of the potential distribution in the import area. Two species of Asian grass (Miscanthus sacchariflorus and M. sinensis) that were originally introduced to North America as ornamental plants have since escaped cultivation. These species and their hybrid offspring are now receiving attention for large-scale production as biofuel crops in North America and elsewhere. We evaluated their potential global climate suitability for cultivation and potential invasion using the niche model CLIMEX and evaluated the models' sensitivity to the parameter values. We then compared the sensitivity of projections of future climatically suitable area under two climate models and two emissions scenarios. The models indicate that the species have been introduced to most of the potential global climatically suitable areas in the northern but not the southern hemisphere. The more narrowly distributed species (M. sacchariflorus) is more sensitive to changes in model parameters, which could have implications for modelling species of conservation concern. Climate projections indicate likely contractions in potential range in the south, but expansions in the north, particularly in introduced areas where biomass production trials are under way. Climate sensitivity analysis shows that projections differ more between the selected climate change models than between the selected emissions scenarios. Local-scale assessments are required to overlay suitable habitat with climate projections to estimate areas of cultivation potential and invasion risk.

  6. Influence of organic amendments on soil quality potential indicators in an urban horticultural system.

    PubMed

    González, Mirta; Gomez, Elena; Comese, Romina; Quesada, Mariano; Conti, Marta

    2010-11-01

    The short-term response of some soil physical, chemical and biological properties, and the growth of beet, to the application of vermicompost-compost mix and/or bone meal at different doses in an organic system was evaluated in the present work. Fractions of soil organic matter after amendment application were also evaluated. Though no differences were found in oxidizable carbon, the particulate organic carbon was incremented in treatments with the application of vermicompost-compost mix (VC) and the combination of compost and bone meal (VC-BM). When analyzing the fulvic, humic and humin fractions, the highest fulvic acids were found in vermi-compost and bone meal mix, at the higher dose (VC2-BM2). In general, the addition of compost and/or bone meal stimulated microbial respiration. The treatments produced a slight but significant increase in electrical conductivity, thought it was still far from limits that involve risk of salinization. An increment in extractable P was found in all the treatments with amendment application with the exception of bone meal applied at the lower dose (1kgm(-2)). The cation exchange capacity showed a significant increment in VC2-BM2. A single application of VC at dose of 2kgm(-2) was enough to significantly reduce bulk density. An increment in kg dry matter m(-2) of beet was observed in all the treatments, but it only was significant in VC2-BM2. However, the highest N and P concentration was found in beet aerial tissues from the treatments with the higher dose of the compost-vermicompost mix (VC2 and VC2-BM2). Particulate organic carbon, fulvic acid fraction, C from respiration, and bulk density were the soil properties that showed a positive change after amendment application. Treatment combining vermicompost-compost and bone meal (VC2-BM2) seemed to be the best option to achieve an improvement both in soil and crop production and quality.

  7. Characterization of Soil Suppressiveness to Root-Knot Nematodes in Organic Horticulture in Plastic Greenhouse.

    PubMed

    Giné, Ariadna; Carrasquilla, Marc; Martínez-Alonso, Maira; Gaju, Núria; Sorribas, Francisco J

    2016-01-01

    The fluctuation of Meloidogyne population density and the percentage of fungal egg parasitism were determined from July 2011 to July 2013 in two commercial organic vegetable production sites (M10.23 and M10.55) in plastic greenhouses, located in northeastern Spain, in order to know the level of soil suppressiveness. Fungal parasites were identified by molecular methods. In parallel, pot tests characterized the level of soil suppressiveness and the fungal species growing from the eggs. In addition, the egg parasitic ability of 10 fungal isolates per site was also assessed. The genetic profiles of fungal and bacterial populations from M10.23 and M10.55 soils were obtained by Denaturing Gradient Gel Electrophoresis (DGGE), and compared with a non-suppressive soil (M10.33). In M10.23, Meloidogyne population in soil decreased progressively throughout the rotation zucchini, tomato, and radish or spinach. The percentage of egg parasitism was 54.7% in zucchini crop, the only one in which eggs were detected. Pochonia chlamydosporia was the only fungal species isolated. In M10.55, nematode densities peaked at the end of the spring-summer crops (tomato, zucchini, and cucumber), but disease severity was lower than expected (0.2-6.3). The percentage of fungal egg parasitism ranged from 3 to 84.5% in these crops. The results in pot tests confirmed the suppressiveness of the M10.23 and M10.55 soils against Meloidogyne. The number of eggs per plant and the reproduction factor of the population were reduced (P < 0.05) in both non-sterilized soils compared to the sterilized ones after one nematode generation. P. chlamydosporia was the only fungus isolated from Meloidogyne eggs. In in vitro tests, P. chlamydosporia isolates were able to parasitize Meloidogyne eggs from 50 to 97% irrespective of the site. DGGE fingerprints revealed a high diversity in the microbial populations analyzed. Furthermore, both bacterial and fungal genetic patterns differentiated suppressive from non-suppressive soils, but the former showed a higher degree of similarity between both suppressive soils than the later. PMID:26925080

  8. Predicting Potential Global Distributions of Two Miscanthus Grasses: Implications for Horticulture, Biofuel Production, and Biological Invasions

    PubMed Central

    Hager, Heather A.; Sinasac, Sarah E.; Gedalof, Ze’ev; Newman, Jonathan A.

    2014-01-01

    In many regions, large proportions of the naturalized and invasive non-native floras were originally introduced deliberately by humans. Pest risk assessments are now used in many jurisdictions to regulate the importation of species and usually include an estimation of the potential distribution in the import area. Two species of Asian grass (Miscanthus sacchariflorus and M. sinensis) that were originally introduced to North America as ornamental plants have since escaped cultivation. These species and their hybrid offspring are now receiving attention for large-scale production as biofuel crops in North America and elsewhere. We evaluated their potential global climate suitability for cultivation and potential invasion using the niche model CLIMEX and evaluated the models’ sensitivity to the parameter values. We then compared the sensitivity of projections of future climatically suitable area under two climate models and two emissions scenarios. The models indicate that the species have been introduced to most of the potential global climatically suitable areas in the northern but not the southern hemisphere. The more narrowly distributed species (M. sacchariflorus) is more sensitive to changes in model parameters, which could have implications for modelling species of conservation concern. Climate projections indicate likely contractions in potential range in the south, but expansions in the north, particularly in introduced areas where biomass production trials are under way. Climate sensitivity analysis shows that projections differ more between the selected climate change models than between the selected emissions scenarios. Local-scale assessments are required to overlay suitable habitat with climate projections to estimate areas of cultivation potential and invasion risk. PMID:24945154

  9. Novel Wireless Sensor System for Monitoring Oxygen, Temperature and Respiration Rate of Horticultural Crops Post Harvest

    PubMed Central

    Løkke, Mette Marie; Seefeldt, Helene Fast; Edwards, Gareth; Green, Ole

    2011-01-01

    In order to design optimal packages, it is of pivotal importance to determine the rate at which harvested fresh fruits and vegetables consume oxygen. The respiration rate of oxygen (RRO2) is determined by measuring the consumed oxygen per hour per kg plant material, and the rate is highly influenced by temperature and gas composition. Traditionally, RRO2 has been determined at discrete time intervals. In this study, wireless sensor networks (WSNs) were used to determine RRO2 continuously in plant material (fresh cut broccoli florets) at 5 °C, 10 °C and 20 °C and at modified gas compositions (decreasing oxygen and increasing carbon dioxide levels). Furthermore, the WSN enabled concomitant determination of oxygen and temperature in the very close vicinity of the plant material. This information proved a very close relationship between changes in temperature and respiration rate. The applied WSNs were unable to determine oxygen levels lower than 5% and carbon dioxide was not determined. Despite these drawbacks in relation to respiration analysis, the WSNs offer a new possibility to do continuous measurement of RRO2 in post harvest research, thereby investigating the close relation between temperature and RRO2. The conclusions are that WSNs have the potential to be used as a monitor of RRO2 of plant material after harvest, during storage and packaging, thereby leading to optimized consumer products. PMID:22164085

  10. 29 CFR 780.112 - General meaning of “agriculture or horticultural commodities.”

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... mineral wealth or other natural resources, or by uncultivated natural growth. For example, peat humus or peat moss is not an agricultural commodity. Wirtz v. Ti Ti Peat Humus Co., 373 f(2d) 209 (C.A.4)....

  11. 29 CFR 780.112 - General meaning of “agriculture or horticultural commodities.”

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... mineral wealth or other natural resources, or by uncultivated natural growth. For example, peat humus or peat moss is not an agricultural commodity. Wirtz v. Ti Ti Peat Humus Co., 373 f(2d) 209 (C.A.4)....

  12. 29 CFR 780.112 - General meaning of “agriculture or horticultural commodities.”

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... mineral wealth or other natural resources, or by uncultivated natural growth. For example, peat humus or peat moss is not an agricultural commodity. Wirtz v. Ti Ti Peat Humus Co., 373 f(2d) 209 (C.A.4)....

  13. 29 CFR 780.112 - General meaning of “agriculture or horticultural commodities.”

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... mineral wealth or other natural resources, or by uncultivated natural growth. For example, peat humus or peat moss is not an agricultural commodity. Wirtz v. Ti Ti Peat Humus Co., 373 f(2d) 209 (C.A.4)....

  14. 26 CFR 1.48-10 - Single purpose agricultural or horticultural structures.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ...) Type of animal involved; (B) Number of, and consumption rate for, each animal; (C) Climate of area; (D... presumption may be rebutted with clear and convincing evidence. (iv) A structure may fail the exclusive use.... A change in the use of an agricultural structure from one species of livestock to another will...

  15. 26 CFR 1.48-10 - Single purpose agricultural or horticultural structures.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ...) Type of animal involved; (B) Number of, and consumption rate for, each animal; (C) Climate of area; (D... presumption may be rebutted with clear and convincing evidence. (iv) A structure may fail the exclusive use.... A change in the use of an agricultural structure from one species of livestock to another will...

  16. Arsenic speciation and localization in horticultural produce grown in a historically impacted mining region.

    PubMed

    Norton, Gareth; Deacon, Claire; Mestrot, Adrien; Feldmann, Joerg; Jenkins, Paul; Baskaran, Christina; Meharg, Andrew A

    2013-06-18

    A field and market basket study (~1300 samples) of locally grown fruits and vegetables from historically mined regions of southwest (SW) England (Cornwall and Devon), and as reference, a market basket study of similarly locally grown produce from the northeast (NE) of Scotland (Aberdeenshire) was conducted to determine the concentration of total and inorganic arsenic present in produce from these two geogenically different areas of the U.K. On average 98.5% of the total arsenic found was present in the inorganic form. For both the market basket and the field survey, the highest total arsenic was present in open leaf structure produce (i.e., kale, chard, lettuce, greens, and spinach) being most likely to soil/dust contamination of the open leaf structure. The concentration of total arsenic in potatoes, swedes, and carrots was lower in peeled produce compared to unpeeled produce. For baked potatoes, the concentration of total arsenic in the skin was higher compared to the total arsenic concentration of the potato flesh, this difference in localization being confirmed by laser ablation inductively coupled plasma mass spectroscopy (LA-ICP-MS). For all above ground produce (e.g., apples), peeling did not have a significant effect on the concentration of total arsenic present.

  17. Biotech/GM crops in horticulture: plum cv. HoneySweet resistant to plum pox virus

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Commercialization of Biotech crops started in 1995. By 2011, genetically modified (GM) crops were grown world-wide on 160 million ha. Only 114.507 ha of GM crops were grown in Europe, of that, 114.490 ha were Bt maize and 17 ha were potato for industrial starch production. Currently, developing c...

  18. No Flower Shall Wither; or, Horticulture in the Kingdom of the Frogs. The Cutting Edge

    ERIC Educational Resources Information Center

    Clabaugh, Gary K.

    2004-01-01

    Dedicated educators, struggling with the mandates of "No Child Left Behind" will immediately identify with the hero of this allegory. Horace is a small frog, who has a passion for gardening, and watching flowers bloom. As soon as he comes of age, Horace decides to pursue his great love of nurturing tender blooming things. He studies, diligently,…

  19. Role of ethylene receptors during senescence and ripening in horticultural crops

    PubMed Central

    Agarwal, Gaurav; Choudhary, Divya; Singh, Virendra P.; Arora, Ajay

    2012-01-01

    The past two decades have been rewarding in terms of deciphering the ethylene signal transduction and functional validation of the ethylene receptor and downstream genes involved in the cascade. Our knowledge of ethylene receptors and its signal transduction pathway provides us a robust platform where we can think of manipulating and regulating ethylene sensitivity by the use of genetic engineering and making transgenic. This review focuses on ethylene perception, receptor mediated regulation of ethylene biosynthesis, role of ethylene receptors in flower senescence, fruit ripening and other effects induced by ethylene. The expression behavior of the receptor and downstream molecules in climacteric and non climacteric crops is also elaborated upon. Possible strategies and recent advances in altering the ethylene sensitivity of plants using ethylene receptor genes in an attempt to modulate the regulation and sensitivity to ethylene have also been discussed. Not only will these transgenic plants be a boon to post-harvest physiology and crop improvement but, it will also help us in discovering the mechanism of regulation of ethylene sensitivity. PMID:22751331

  20. Core III Materials for Metropolitan Agriculture/Horticulture Programs. Units A-I.

    ERIC Educational Resources Information Center

    Biondo, Ron; And Others

    This first volume of a two-volume curriculum guide contains 11 problem areas selected for study to be included in a core curriculum for 11th-grade or third-year students enrolled in a metropolitan agricultural program. The 11 problem areas are divided into eight units: Orientation to Agricultural Occupations (Gaining Employment), Supervised…

  1. The Effects of Task Instruction Sheets on the Performance of Eleventh Grade Students Studying Vocational Horticulture.

    ERIC Educational Resources Information Center

    Scanlon, Dennis C.; Newcomb, L. H.

    1983-01-01

    In recent years, managing a vocational laboratory has become an increasingly difficult and complex task facing many vocational educators. Specialized instructional areas, diverse groups of students, and extended laboratory time have caused educators to seek alternate ways of providing practical "hands-on" instruction when traditional supervised…

  2. Horticulture take-home messages. Grower Day Summary: 2011 International HLB Meeting, Orlando, Florida

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The 2nd International Research Conference on Huanglongbing covered 3 full days, with 400 participants from 20 countries. There were 75 oral presentations, 96 posters, and I took 20 pages of notes. Urgency of HLB as a threat to citrus production and the engine of substantial grower investment has fu...

  3. A simple method for screening antimicrobial compounds with application to horticultural crops

    Technology Transfer Automated Retrieval System (TEKTRAN)

    It is often difficult to extrapolate information obtained under laboratory conditions to the field. This is especially true in the case of translating reactions between microorganisms grown in a Petri dish with experimental antimicrobials, and using these experimental compounds in commercial applic...

  4. Performance Testing of Thermal Cutting Systems for Sweet Pepper Harvesting Robot in Greenhouse Horticulture

    NASA Astrophysics Data System (ADS)

    Bachche, Shivaji; Oka, Koichi

    2013-03-01

    This paper proposes design of end-effector and prototype of thermal cutting system for harvesting sweet peppers. The design consists of two parallel gripper bars mounted on a frame connected by specially designed notch plate and operated by servo motor. Based on voltage and current, two different types of thermal cutting system prototypes; electric arc and temperature arc respectively were developed and tested for performance. In electric arc, a special electric device was developed to obtain high voltage to perform cutting operation. At higher voltage, electrodes generate thermal arc which helps to cut stem of sweet pepper. In temperature arc, nichrome wire was mounted between two electrodes and current was provided directly to electrodes which results in generation of high temperature arc between two electrodes that help to perform cutting operation. In both prototypes, diameters of basic elements were varied and the effect of this variation on cutting operation was investigated. The temperature arc thermal system was found significantly suitable for cutting operation than electric arc thermal system. In temperature arc thermal cutting system, 0.5 mm nichrome wire shows significant results by accomplishing harvesting operation in 1.5 seconds. Also, thermal cutting system found suitable to increase shelf life of fruits by avoiding virus and fungal transformation during cutting process and sealing the fruit stem. The harvested sweet peppers by thermal cutting system can be preserved at normal room temperature for more than 15 days without any contamination.

  5. The genetic basis of fruit morphology in horticultural crops: lessons from tomato and melon.

    PubMed

    Monforte, Antonio J; Diaz, Aurora; Caño-Delgado, Ana; van der Knaap, Esther

    2014-08-01

    Fruits represent an important part of the human diet and show extensive variation in size and shape between and within cultivated species. The genetic basis of such variation has been studied most extensively in tomato, where currently six quantitative trait loci (QTLs) involving these traits have been fine-mapped and the genes underlying the QTLs identified. The genes responsible for the cloned QTLs belong to families with a few to many members. FASCIATED is encoded by a member of the YABBY family, CNR/FW2.2 by a member of the Cell Number Regulator family, SlKLUH/FW3.2 by a cytochrome P450 of the 78A class (CYP78A), LOCULE NUMBER by a member of the WOX family including WUSCHEL, OVATE by a member of the Ovate Family Proteins (OFP), and SUN by a member of the IQ domain family. A high portion of the history and current diversity in fruit morphology among tomato cultivars can be explained by modifications at four of these cloned QTLs. In melon, a number of QTLs involved in fruit morphology have been mapped, but the molecular basis for these QTLs is unknown. In the present review, we examine the current knowledge on the molecular basis of fruit morphology in tomato and transfer that information in order to define candidate genes of melon fruit shape and size QTLs. We hypothesize that different members of the gene families identified in tomato may have a role in the regulation of fruit morphology in other species. We anchored the published melon QTL map on the genome sequence and identified the melon family members of the six cloned tomato QTLs in the genome. We investigated the co-localization of melon fruit morphology QTLs and the candidate genes. We found that QTLs for fruit weight co-localized frequently with members of the CNR/FW2.2 and KLUH/FW3.2 families, as well as co-localizations between OFP family members and fruit-shape QTLs, making this family the most suitable to explain fruit shape variation among melon accessions.

  6. Use of Dehydrated Agar to Estimate Microbial Water Quality for Horticulture Irrigation.

    PubMed

    Meador, Dustin P; Fisher, Paul R; Guy, Charles L; Harmon, Philip F; Peres, Natalia A; Teplitski, Max

    2016-07-01

    Petrifilms are dehydrated agar culture plates that have been used to quantify colony forming units (CFU) mL of either aerobic bacteria (Petrifilm-AC) or fungus (Petrifilm-YM), depending on substrate composition. Microbes in irrigation systems can indicate biofilm risk and potential clogging of irrigation emitters. The research objective was to compare counts on Petrifilms versus traditional, hydrated-agar plates using samples collected from recirculated irrigation waters and cultures of isolated known species. The estimated count (in CFU mL) from a recirculated irrigation sample after 7 d of incubation on Petrifilm-YM was only 5.5% of the count quantified using sabouraud dextrose agar (SDA) with chloramphenicol after 14 d. In a separate experiment with a known species, Petrifilm-YM did not successfully culture zoospores of . Isolates of viable zoospores were cultured successfully on potato-dextrose agar (PDA), with comparable counts with a vegetable juice medium supplemented with the antibiotics pimaricin, ampicillin, rifamycin, pentochloronitrobenzene and hymexazol (PARP-H). The quantification of pv. Begoniaceae on Petrifilm-AC was not significantly different ( < 0.05) than on PDA, but was lower than on Reasoner and Goldrich agar (R2A) or with a hemocytometer. The current formulation of Petrifilm-YM is unlikely to be a useful monitoring method for plant pathogens in irrigation water because of the inability to successfully culture oomycetes. However, Petrifilm-AC was an effective method to quantify bacteria and can provide an easy-to-use on-farm tool to monitor biofilm risk and microbial density. PMID:27380096

  7. Climate change and shifts in spring phenology of three horticultural woody perennials in northeastern USA

    NASA Astrophysics Data System (ADS)

    Wolfe, David W.; Schwartz, Mark D.; Lakso, Alan N.; Otsuki, Yuka; Pool, Robert M.; Shaulis, Nelson J.

    2005-05-01

    We evaluated spring phenology changes from 1965 to 2001 in northeastern USA utilizing a unique data set from 72 locations with genetically identical lilac plants (Syringa chinensis, clone “Red Rothomagensis”). We also utilized a previously validated lilac-honeysuckle “spring index” model to reconstruct a more complete record of first leaf date (FLD) and first flower date (FFD) for the region from historical weather data. In addition, we examined mid-bloom dates for apple (Malus domestica) and grape (Vitis vinifera) collected at several sites in the region during approximately the same time period. Almost all lilac sites with significant linear trends for FLD or FFD versus year had negative slopes (advanced development). Regression analysis of pooled data for the 72 sites indicated an advance of -0.092 day/year for FFD (P=0.003). The slope for FLD was also negative (-0.048 day/year), but not significant (P=0.234). The simulated data from the “spring index” model, which relies on local daily temperature records, indicated highly significant (P<0.001) negative slopes of -0.210 and -0.123 day/year for FLD and FFD, respectively. Data collected for apple and grape also indicated advance spring development, with slopes for mid-bloom date versus year of -0.20 day/year (P=0.01) and -0.146 (P=0.14), respectively. Collectively, these results indicate an advance in spring phenology ranging from 2 to 8 days for these woody perennials in northeastern USA for the period 1965 to 2001, qualitatively consistent with a warming trend, and consistent with phenology shifts reported for other mid- and high-latitude regions.

  8. Estimating the extent and structure of trade in horticultural orchids via social media.

    PubMed

    Hinsley, Amy; Lee, Tamsin E; Harrison, Joseph R; Roberts, David L

    2016-10-01

    The wildlife trade is a lucrative industry involving thousands of animal and plant species. The increasing use of the internet for both legal and illegal wildlife trade is well documented, but there is evidence that trade may be emerging on new online technologies such as social media. Using the orchid trade as a case study, we conducted the first systematic survey of wildlife trade on an international social-media website. We focused on themed forums (groups), where people with similar interests can interact by uploading images or text (posts) that are visible to other group members. We used social-network analysis to examine the ties between 150 of these orchid-themed groups to determine the structure of the network. We found 4 communities of closely linked groups based around shared language. Most trade occurred in a community that consisted of English-speaking and Southeast Asian groups. In addition to the network analysis, we randomly sampled 30 groups from the whole network to assess the prevalence of trade in cultivated and wild plants. Of 55,805 posts recorded over 12 weeks, 8.9% contained plants for sale, and 22-46% of these posts pertained to wild-collected orchids. Although total numbers of posts about trade were relatively small, the large proportion of posts advertising wild orchids for sale supports calls for better monitoring of social media for trade in wild-collected plants.

  9. How to Write "How-to" Books with High School Ecology & Horticulture Students

    ERIC Educational Resources Information Center

    Merritt, Maya; Shajira, Natasya; Daisey, Peggy

    2003-01-01

    It is essential for students to think clearly about fundamental biological concepts. One of the benefits of writing is that it promotes and enhances thinking. If students can write clearly, they are thinking clearly. Writing helps to connect new knowledge with prior knowledge and promotes the construction of knowledge. Writing-to-learn activities…

  10. Gardening under cover: a northwest horticultural guide to solar greenhouses, coldframes and cloches

    SciTech Connect

    Head, W.

    1985-01-01

    Gardening in a solar greenhouse, coldframe, or cloche, which is a simple protective covering placed over a garden bed, is discussed, including the construction of two different types of cloche, identification of herbs and flowers, suitable for a solar greenhouse, forcing spring bulbs, and pests and diseases commonly found on plants growing in cold frames and greenhouses. (LEW)

  11. Nucleotide polymorphism affecting FLC expression underpins heading date variation in horticultural brassicas.

    PubMed

    Irwin, Judith A; Soumpourou, Eleni; Lister, Clare; Ligthart, Jan-Dick; Kennedy, Sue; Dean, Caroline

    2016-09-01

    Variation in flowering time and response to overwintering has been exploited to breed brassica vegetables that can be harvested year-round. Our knowledge of flowering time control now enables the investigation of the molecular basis of this important variation. Here, we show that a major determinant of heading date variation in Brassica oleracea is from variation in vernalization response through allelic variation at FLOWERING LOCUS C.C2 (BoFLC4). We characterize two alleles of BoFLC.C2 that are both functional and confer a requirement for vernalization, but they show distinct expression dynamics in response to cold. Complementation experiments in Arabidopsis thaliana revealed that the allelic variation results from cis polymorphism at BoFLC.C2, which quantitatively influences the degree of cold-induced epigenetic silencing. This results in one allelic variant conferring consistently later heading under both glasshouse and field conditions through reduced environmental sensitivity. Our results suggest that breeding of brassica varieties for commercially valuable variation in heading date has been achieved through the selection of cis polymorphism at FLC, similar to that underpinning natural variation in A. thaliana. This understanding will allow for the selection of alleles with distinct sensitivities to cold and robust heading dates under variable climatic conditions, and will facilitate the breeding of varieties more resistant to climate change. PMID:27232938

  12. Characterization of Soil Suppressiveness to Root-Knot Nematodes in Organic Horticulture in Plastic Greenhouse

    PubMed Central

    Giné, Ariadna; Carrasquilla, Marc; Martínez-Alonso, Maira; Gaju, Núria; Sorribas, Francisco J.

    2016-01-01

    The fluctuation of Meloidogyne population density and the percentage of fungal egg parasitism were determined from July 2011 to July 2013 in two commercial organic vegetable production sites (M10.23 and M10.55) in plastic greenhouses, located in northeastern Spain, in order to know the level of soil suppressiveness. Fungal parasites were identified by molecular methods. In parallel, pot tests characterized the level of soil suppressiveness and the fungal species growing from the eggs. In addition, the egg parasitic ability of 10 fungal isolates per site was also assessed. The genetic profiles of fungal and bacterial populations from M10.23 and M10.55 soils were obtained by Denaturing Gradient Gel Electrophoresis (DGGE), and compared with a non-suppressive soil (M10.33). In M10.23, Meloidogyne population in soil decreased progressively throughout the rotation zucchini, tomato, and radish or spinach. The percentage of egg parasitism was 54.7% in zucchini crop, the only one in which eggs were detected. Pochonia chlamydosporia was the only fungal species isolated. In M10.55, nematode densities peaked at the end of the spring-summer crops (tomato, zucchini, and cucumber), but disease severity was lower than expected (0.2–6.3). The percentage of fungal egg parasitism ranged from 3 to 84.5% in these crops. The results in pot tests confirmed the suppressiveness of the M10.23 and M10.55 soils against Meloidogyne. The number of eggs per plant and the reproduction factor of the population were reduced (P < 0.05) in both non-sterilized soils compared to the sterilized ones after one nematode generation. P. chlamydosporia was the only fungus isolated from Meloidogyne eggs. In in vitro tests, P. chlamydosporia isolates were able to parasitize Meloidogyne eggs from 50 to 97% irrespective of the site. DGGE fingerprints revealed a high diversity in the microbial populations analyzed. Furthermore, both bacterial and fungal genetic patterns differentiated suppressive from non-suppressive soils, but the former showed a higher degree of similarity between both suppressive soils than the later. PMID:26925080

  13. Cell-programmed death induced by walnut husk washing waters in three horticultural crops.

    PubMed

    Petriccione, Milena; Papa, Stefania; Ciniglia, Claudia

    2014-03-01

    Walnut husk washing waters (WHWW), a by-product of walnut production, are indiscriminately used for irrigation without preliminary risk assessment. Basing on previous in vitro results on the toxicity of this by-product, we have followed the morphophysiological development of Zea mays, Lactuca sativa cv. Gentilina and L. sativa cv. Canasta under diluted and undiluted WHWW irrigation. Significant development alterations have been observed in root and shoot elongations for all crops as well as in total biomass and chlorophyll content. The genotoxic potential of WHWW has been concurrently verified; acridine orange/ethidium bromide staining evidenced chromatin modifications and DNA degradation and also was confirmed by DNA laddering. The DNA instability was also assessed through RAPD, thus suggesting the danger of the by-product of walnut processing and focusing the attention on the necessity of an efficient treatment of WHWWs. The findings obtained by PCA of agronomic and physiological traits suggested that establishing guidelines for the administration of WHWW for irrigation is of great importance, and it is necessary to supervise their use in agricultural soils.

  14. Core III Materials for Metropolitan Agriculture/Horticulture Programs. Units J-M.

    ERIC Educational Resources Information Center

    Biondo, Ron; And Others

    This second volume of a two-volume curriculum guide contains 11 problem areas selected for study to be included in a core curriculum for 11th grade or third-year students enrolled in a metropolitan agricultural program. The 11 problem areas are divided into four units: Soil Science and Conservation of Natural Resources (Understanding Soils,…

  15. Plectosphaerella species associated with root and collar rots of horticultural crops in southern Italy.

    PubMed

    Carlucci, A; Raimondo, M L; Santos, J; Phillips, A J L

    2012-06-01

    Plectosphaerella cucumerina, most frequently encountered in its Plectosporium state, is well known as a pathogen of several plant species causing fruit, root and collar rot, and collapse. It is considered to pose a serious threat to melon (Cucumis melo) production in Italy. In the present study, an intensive sampling of diseased cucurbits as well as tomato and bell pepper was done and the fungal pathogens present on them were isolated. Phylogenetic relationships of the isolates were determined through a study of ribosomal RNA gene sequences (ITS cluster and D1/D2 domain of the 28S rRNA gene). Combining morphological, culture and molecular data, six species were distinguished. One of these (Pa. cucumerina) is already known. Four new species are described as Plectosphaerella citrullae, Pa. pauciseptata, Pa. plurivora and Pa. ramiseptata. Acremonium cucurbitacearum is shown to be a synonym of Nodulisporium melonis and is transferred to Plectosphaerella as Plectosphaerella melonis comb. nov. A further three known species of Plectosporium are recombined in Plectosphaerella. PMID:23105152

  16. 29 CFR 780.112 - General meaning of “agriculture or horticultural commodities.”

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... mineral wealth or other natural resources, or by uncultivated natural growth. For example, peat humus or peat moss is not an agricultural commodity. Wirtz v. Ti Ti Peat Humus Co., 373 f(2d) 209 (C.A.4)....

  17. Setting ozone critical levels for protecting horticultural Mediterranean crops: case study of tomato.

    PubMed

    González-Fernández, I; Calvo, E; Gerosa, G; Bermejo, V; Marzuoli, R; Calatayud, V; Alonso, R

    2014-02-01

    Seven experiments carried out in Italy and Spain have been used to parameterising a stomatal conductance model and establishing exposure- and dose-response relationships for yield and quality of tomato with the main goal of setting O3 critical levels (CLe). CLe with confidence intervals, between brackets, were set at an accumulated hourly O3 exposure over 40 nl l(-1), AOT40 = 8.4 (1.2, 15.6) ppm h and a phytotoxic ozone dose above a threshold of 6 nmol m(-2) s(-1), POD6 = 2.7 (0.8, 4.6) mmol m(-2) for yield and AOT40 = 18.7 (8.5, 28.8) ppm h and POD6 = 4.1 (2.0, 6.2) mmol m(-2) for quality, both indices performing equally well. CLe confidence intervals provide information on the quality of the dataset and should be included in future calculations of O3 CLe for improving current methodologies. These CLe, derived for sensitive tomato cultivars, should not be applied for quantifying O3-induced losses at the risk of making important overestimations of the economical losses associated with O3 pollution.

  18. New records of entomopathogenic fungi infecting Bemisia tabaci and Trialeurodes vaporariorum, pests of horticultural crops, in Argentina

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The whiteflies (Hemiptera: Aleyrodidae) Bemisia tabaci (Gennadius), and Trialeurodes vaporariorum (Westwood) are major crop pests throughout the world. Although extensive research about biological control of whitefly has been conducted towards these insect's parasitoids and predators, several entom...

  19. Genetic diversity and association mapping of bacterial blight and other horticulturally important traits with microsatellite markers in pomegranate from India.

    PubMed

    Singh, Nripendra Vikram; Abburi, Venkata Lakshmi; Ramajayam, D; Kumar, Ravinder; Chandra, Ram; Sharma, Kuldeep Kumar; Sharma, Jyotsana; Babu, K Dhinesh; Pal, Ram Krishna; Mundewadikar, Dhananjay M; Saminathan, Thangasamy; Cantrell, Robert; Nimmakayala, Padma; Reddy, Umesh K

    2015-08-01

    This genetic diversity study aimed to estimate the population structure and explore the use of association mapping strategies to identify linked markers for bacterial resistance, growth and fruit quality in pomegranate collections from India. In total, 88 accessions including 37 cultivated types were investigated. A total of 112 alleles were amplified by use of 44 publicly available microsatellites for estimating molecular genetic diversity and population structure. Neighbor-joining analysis, model-based population structure and principal component analysis corroborated the genetic relationships among wild-type and cultivated pomegranate collections from India. Our study placed all 88 germplasm into four clusters. We identified a cultivated clade of pomegranates in close proximity to Daru types of wild-type pomegranates that grow naturally near the foothills of the Himalayas. Admixture analysis sorted various lineages of cultivated pomegranates to their respective ancestral forms. We identified four linked markers for fruit weight, titratable acidity and bacterial blight severity. PGCT001 was found associated with both fruit weight and bacterial blight, and the association with fruit weight during both seasons analyzed was significant after Bonferroni correction. This research demonstrates effectiveness of microsatellites to resolve population structure among the wild and cultivar collection of pomegranates and future use for association mapping studies. PMID:25675870

  20. Molecular Characterization of Legionella Populations Present within Slow Sand Filters Used for Fungal Plant Pathogen Suppression in Horticultural Crops

    PubMed Central

    Calvo-Bado, Leo A.; Morgan, J. Alun W.; Sergeant, Martin; Pettitt, Tim R.; Whipps, John M.

    2003-01-01

    The total bacterial community of an experimental slow sand filter (SSF) was analyzed by denaturing gradient gel electrophoresis (DGGE) of partial 16S rRNA gene PCR products. One dominant band had sequence homology to Legionella species, indicating that these bacteria were a large component of the SSF bacterial community. Populations within experimental and commercial SSF units were studied by using Legionella-specific PCR primers, and products were studied by DGGE and quantitative PCR analyses. In the experimental SSF unit, the DGGE profiles for sand column, reservoir, storage tank, and headwater tank samples each contained at least one intense band, indicating that a single Legionella strain was predominant in each sample. Greater numbers of DGGE bands of equal intensity were detected in the outflow water sample. Sequence analysis of these PCR products showed that several Legionella species were present and that the organisms exhibited similarity to strains isolated from environmental and clinical samples. Quantitative PCR analysis of the SSF samples showed that from the headwater sample through the sand column, the number of Legionella cells decreased, resulting in a lower number of cells in the outflow water. In the commercial SSF, legionellae were also detected in the sand column samples. Storing prefilter water or locating SSF units within greenhouses, which are often maintained at temperatures that are higher than the ambient temperature, increases the risk of growth of Legionella and should be avoided. Care should also be taken when used filter sand is handled or replaced, and regular monitoring of outflow water would be useful, especially if the water is used for misting or overhead irrigation. PMID:12514038

  1. The mechanisms of plant stress mitigation by kaolin-based particle films and its applications in horticultural and agricultural crops

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Kaolin-based particle films have utility in reducing insect, heat, light, and uv stress in plants due to the reflective nature of the particles. Particle films with a residue density of 1 to 3 g/ square meter have been evaluated in a range of crops and agricultural environments. The particle film ...

  2. Application of the “4R” nutrient stewardship concept to horticultural crops: getting nutrients in the “right” place

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The 4R nutrient stewardship concept was introduced in 2009 by International Plant Nutrition Institute to define the right source, rate, time, and place to apply fertilizers to produce not only the most economical outcome in any given crop but to also to provide desirable social and environmental ben...

  3. Breeding citrus for HLB resistance at the USDA/ARS U.S. Horticultural Research Laboratory, Ft. Pierce, Florida

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Citrus breeding has been conducted by the USDA since 1893. The initial objectives included improved disease-resistance, cold hardiness, and easy peeling fruit, which are still important breeding objectives today. The emergence of huanglongbing (HLB) in the US has propelled the development of HLB r...

  4. The Potential Impact on Farmer Health of Enhanced Export Horticultural Trade between the U.K. and Uganda

    PubMed Central

    Cross, Paul; Edwards, Rhiannon T.; Nyeko, Philip; Edwards-Jones, Gareth

    2009-01-01

    The export of vegetables from African countries to European markets presents consumers with an ethical dilemma: should they support local, but relatively well-off farmers, or poorer farmers from distant countries? This paper considers the issue of farm worker health in the U.K. and Uganda, and considers the dilemma facing U.K. consumers if Uganda achieves their aim of exporting more vegetables to the U.K. Self-reported health scores of 1,200 farm workers in the U.K. and Uganda were measured with the internationally recognised SF-36 questionnaire and compared to an international population norm. The age-corrected health status of U.K. farm workers was significantly lower than the population norm, whereas Ugandans scored significantly higher (indicating good health) for physical health and lower for mental health. If Ugandan produce enters U.K. markets, then consumers may wish to consider both the potential benefits that enhanced trade could offer Ugandan farmers compared with its impacts on U.K. workers. PMID:19543406

  5. The potential impact on farmer health of enhanced export horticultural trade between the U.K. and Uganda.

    PubMed

    Cross, Paul; Edwards, Rhiannon T; Nyeko, Philip; Edwards-Jones, Gareth

    2009-05-01

    The export of vegetables from African countries to European markets presents consumers with an ethical dilemma: should they support local, but relatively well-off farmers, or poorer farmers from distant countries? This paper considers the issue of farm worker health in the U.K. and Uganda, and considers the dilemma facing U.K. consumers if Uganda achieves their aim of exporting more vegetables to the U.K. Self-reported health scores of 1,200 farm workers in the U.K. and Uganda were measured with the internationally recognised SF-36 questionnaire and compared to an international population norm. The age-corrected health status of U.K. farm workers was significantly lower than the population norm, whereas Ugandans scored significantly higher (indicating good health) for physical health and lower for mental health. If Ugandan produce enters U.K. markets, then consumers may wish to consider both the potential benefits that enhanced trade could offer Ugandan farmers compared with its impacts on U.K. workers. PMID:19543406

  6. Genetic diversity and association mapping of bacterial blight and other horticulturally important traits with microsatellite markers in pomegranate from India.

    PubMed

    Singh, Nripendra Vikram; Abburi, Venkata Lakshmi; Ramajayam, D; Kumar, Ravinder; Chandra, Ram; Sharma, Kuldeep Kumar; Sharma, Jyotsana; Babu, K Dhinesh; Pal, Ram Krishna; Mundewadikar, Dhananjay M; Saminathan, Thangasamy; Cantrell, Robert; Nimmakayala, Padma; Reddy, Umesh K

    2015-08-01

    This genetic diversity study aimed to estimate the population structure and explore the use of association mapping strategies to identify linked markers for bacterial resistance, growth and fruit quality in pomegranate collections from India. In total, 88 accessions including 37 cultivated types were investigated. A total of 112 alleles were amplified by use of 44 publicly available microsatellites for estimating molecular genetic diversity and population structure. Neighbor-joining analysis, model-based population structure and principal component analysis corroborated the genetic relationships among wild-type and cultivated pomegranate collections from India. Our study placed all 88 germplasm into four clusters. We identified a cultivated clade of pomegranates in close proximity to Daru types of wild-type pomegranates that grow naturally near the foothills of the Himalayas. Admixture analysis sorted various lineages of cultivated pomegranates to their respective ancestral forms. We identified four linked markers for fruit weight, titratable acidity and bacterial blight severity. PGCT001 was found associated with both fruit weight and bacterial blight, and the association with fruit weight during both seasons analyzed was significant after Bonferroni correction. This research demonstrates effectiveness of microsatellites to resolve population structure among the wild and cultivar collection of pomegranates and future use for association mapping studies.

  7. Scanning genomic areas under selection sweep and association mapping as tools to identify horticultural important genes in watermelon

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Watermelon (Citrullus lanatus var. lanatus) contains 88% water, sugars, and several important health-related compounds, including lycopene, citrulline, arginine, and glutathione. The current genetic diversity study uses microsatellites with known map positions to identify genomic regions that under...

  8. Spatial assessment of soil organic carbon and physicochemical properties in a horticultural orchard at arid zone of India using geostatistical approaches.

    PubMed

    Singh, Akath; Santra, Priyabrata; Kumar, Mahesh; Panwar, Navraten; Meghwal, P R

    2016-09-01

    Soil organic carbon (SOC) is a major indicator of long-term sustenance of agricultural production system. Apart from sustaining productivity, SOC plays a crucial role in context of climate change. Keeping in mind these potentials, spatial variation of SOC contents of a fruit orchard comprising several arid fruit plantations located at arid region of India is assessed in this study through geostatistical approaches. For this purpose, surface and subsurface soil samples from 175 locations from a fruit orchard spreading over 14.33 ha area were collected along with geographical coordinates. SOC content and soil physicochemical properties of collected soil samples were determined followed by geostatistical analysis for mapping purposes. Average SOC stock density of the orchard was 14.48 Mg ha(-1) for 0- to 30-cm soil layer ranging from 9.01 Mg ha(-1) in Carissa carandas to 19.52 Mg ha(-1) in Prosopis cineraria block. Range of spatial variation of SOC content was found about 100 m, while two other soil physicochemical properties, e.g., pH and electrical conductivity (EC) also showed similar spatial trend. This indicated that minimum sampling distance for future SOC mapping programme may be kept lower than 100 m for better accuracy. Ordinary kriging technique satisfactorily predicted SOC contents (in percent) at unsampled locations with root-mean-squared residual (RMSR) of 0.35-0.37. Co-kriging approach was found slightly superior (RMSR = 0.26-0.28) than ordinary kriging for spatial prediction of SOC contents because of significant correlations of SOC contents with pH and EC. Uncertainty of SOC estimation was also presented in terms of 90 % confidence interval. Spatial estimates of SOC stock through ordinary kriging or co-kriging approach were also found with low uncertainty of estimation than non-spatial estimates, e.g., arithmetic averaging approach. Among different fruit block plantations of the orchard, the block with Prosopis cineraria ('khejri') has higher SOC stock density than others. PMID:27553943

  9. Modified Occupational Completion Points in Vocational Education for Students with Disabilities with Examples from Automotive Technologies, Commercial Foods, Data Entry, and Environmental Horticulture.

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Div. of Public Schools.

    This guide was developed to help teachers and administrators in vocational education programs (especially in Florida) to develop modified occupational completion points for students with disabilities. Modified occupational points (MOCPs) are selected sets of student performance standards within a vocational job preparatory program. These selected…

  10. Progress toward increasing intake of dietary nutrients from vegetables and fruits: The case for a greater role for the horticultural sciences

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Diet is implicated globally in the cause and severity of many diseases, including cancer, heart disease, and diabetes, and a large body of medical evidence indicates that consumption of healthier foods can alleviate both the incidence and severity of not only these diseases, but also obesity, which ...

  11. Development of Competency-Based Vocational Agricultural Instructional Materials for Handicapped Students Enrolled in Regular Agriculture Programs Other Than Horticulture. Final Report.

    ERIC Educational Resources Information Center

    Baggett, Connie D.; And Others

    This report includes a description of a project to develop and field-test competency-based instructional materials for handicapped students enrolled in regular vocational agriculture programs; a list of project advisory personnel; the clusters of skills identified as appropriate for handicapped students enrolled in courses in dairy production,…

  12. Iron-[S,S']-EDDS (FeEDDS) Chelate as an Iron Source for Horticultural Crop Production: Marigold Growth and Nutrition, Spectral Properties, and Photodegradation

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Aminopolycarboxylic acid (APCA) complexones, commonly referred to as ligands or chelating agents, like ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DTPA) are commonly used in soluble fertilizers to supply copper (Cu), iron (Fe), manganese (Mn), and/or zinc (Zn) to p...

  13. The Influence of Horticultural Activities on Preschool-Aged Children's Peer Interaction and Task Engagement in an Inclusive Setting

    ERIC Educational Resources Information Center

    Wiedeman-Rouse, Teri

    2012-01-01

    There is great concern by teachers, school administrators and parents regarding the increase in the number of preschool-aged students who exhibit challenging behavior in early childhood settings (Benedict, Horner & Squires 2007), need for early intervention procedures that focus on young children who may be at risk for developing patterns of…

  14. Genome-wide association of 10 horticultural traits with expressed sequence tag-derived SNP markers in a collection of lettuce lines

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Genetic diversity, population structure, and genome-wide marker-trait association analyses were conducted on a special collection of 298 homozygous lettuce (Lactuca sativa L.) lines. Each of these lines was derived from a single plant that had been genotyped with 384 SNP makers using LSGermOPA. They...

  15. 29 CFR 780.113 - Seeds, spawn, etc.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... seedlings of agricultural and horticultural plants are considered “agricultural or horticultural commodities.” Thus, since mushrooms and beans are considered “agricultural or horticultural commodities,” the spawn of mushrooms and bean sprouts are also so considered and the production, cultivation, growing,...

  16. 29 CFR 780.113 - Seeds, spawn, etc.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... seedlings of agricultural and horticultural plants are considered “agricultural or horticultural commodities.” Thus, since mushrooms and beans are considered “agricultural or horticultural commodities,” the spawn of mushrooms and bean sprouts are also so considered and the production, cultivation, growing,...

  17. 29 CFR 780.113 - Seeds, spawn, etc.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... seedlings of agricultural and horticultural plants are considered “agricultural or horticultural commodities.” Thus, since mushrooms and beans are considered “agricultural or horticultural commodities,” the spawn of mushrooms and bean sprouts are also so considered and the production, cultivation, growing,...

  18. 29 CFR 780.113 - Seeds, spawn, etc.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... seedlings of agricultural and horticultural plants are considered “agricultural or horticultural commodities.” Thus, since mushrooms and beans are considered “agricultural or horticultural commodities,” the spawn of mushrooms and bean sprouts are also so considered and the production, cultivation, growing,...

  19. 29 CFR 780.113 - Seeds, spawn, etc.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... seedlings of agricultural and horticultural plants are considered “agricultural or horticultural commodities.” Thus, since mushrooms and beans are considered “agricultural or horticultural commodities,” the spawn of mushrooms and bean sprouts are also so considered and the production, cultivation, growing,...

  20. Agricultural Change and the Rise of the British Strawberry Industry, 1920-2009

    ERIC Educational Resources Information Center

    Calleja, E. J.; Ilbery, B.; Mills, P. R.

    2012-01-01

    Little research has been conducted on structural change within the UK horticultural sector. This paper examines long-term changes, over a 90-year period, in one particular part of the UK horticultural sector: strawberries. It follows its growth from being a minor crop in 1920 to becoming the biggest grossing horticultural crop in 2009. Using a…

  1. The Special Education Prevocational Level Manual: Project V.I.E.W. (Vocational Instruction and Experience Workshop). Assembly Skills, Woodworking Skills, Graphic Arts Skills, Measurement Skills, Plastic Skills, Horticulture Skills.

    ERIC Educational Resources Information Center

    Northern Valley Regional High School District, Closter, NJ.

    Designed as a guideline for teachers and child study teams in a prevocational program for handicapped students, the manual presents goals, objectives and sample activities including the elements of career awareness, prevocational instruction, job simulation, and readiness for formal vocational instruction. Six sections are addressed: (1) assembly…

  2. The present state of research and exploitation of biotech (GM) crops in horticulture: results of research on plum cv. 'HoneySweet' resistant to plum pox virus (Sharka) and the deregulation of this cultivar in the CR & Europe

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Gentically modified (GM) crops were grown world-wide on 160 million ha in 2011. Only 114.57 ha of GM crops were grown in Europe, of that, 114.90 ha were Bt maize and 17 ha were potato for industrial starch production. Commercialization of Biotech crops started in 1995. Currently, developing count...

  3. 18 CFR 415.32 - Permitted uses generally.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... capacity of the floodway: (1) Agricultural uses such as general farming, livestock, and dairy farming, horticulture, truck farming, sod farming, forestry, wild crop harvesting, and normal operating...

  4. 18 CFR 415.32 - Permitted uses generally.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... capacity of the floodway: (1) Agricultural uses such as general farming, livestock, and dairy farming, horticulture, truck farming, sod farming, forestry, wild crop harvesting, and normal operating...

  5. 18 CFR 415.32 - Permitted uses generally.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... capacity of the floodway: (1) Agricultural uses such as general farming, livestock, and dairy farming, horticulture, truck farming, sod farming, forestry, wild crop harvesting, and normal operating...

  6. 37 CFR 6.1 - International schedule of classes of goods and services.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial..., recording discs; compact discs, DVDs and other digital recording media; mechanisms for...

  7. 37 CFR 6.1 - International schedule of classes of goods and services.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial..., recording discs; compact discs, DVDs and other digital recording media; mechanisms for...

  8. 29 CFR 780.153 - Delivery “to storage.”

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... storage” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  9. 29 CFR 780.153 - Delivery “to storage.”

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... storage” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  10. 29 CFR 780.154 - Delivery “to market.”

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... * * * to market” includes taking agricultural or horticultural commodities, dairy products, livestock,...

  11. 29 CFR 780.153 - Delivery “to storage.”

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... storage” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  12. 29 CFR 780.155 - Delivery “to carriers for transportation to market.”

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... OF LABOR STATEMENTS OF GENERAL POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS... market” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  13. 29 CFR 780.155 - Delivery “to carriers for transportation to market.”

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... OF LABOR STATEMENTS OF GENERAL POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS... market” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  14. 29 CFR 780.154 - Delivery “to market.”

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... * * * to market” includes taking agricultural or horticultural commodities, dairy products, livestock,...

  15. 29 CFR 780.155 - Delivery “to carriers for transportation to market.”

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... OF LABOR STATEMENTS OF GENERAL POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS... market” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  16. 29 CFR 780.154 - Delivery “to market.”

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... * * * to market” includes taking agricultural or horticultural commodities, dairy products, livestock,...

  17. 29 CFR 780.154 - Delivery “to market.”

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... * * * to market” includes taking agricultural or horticultural commodities, dairy products, livestock,...

  18. 29 CFR 780.153 - Delivery “to storage.”

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... storage” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  19. 29 CFR 780.155 - Delivery “to carriers for transportation to market.”

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... OF LABOR STATEMENTS OF GENERAL POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS... market” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  20. 29 CFR 780.153 - Delivery “to storage.”

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... storage” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  1. 29 CFR 780.154 - Delivery “to market.”

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS EXEMPTIONS APPLICABLE TO AGRICULTURE... * * * to market” includes taking agricultural or horticultural commodities, dairy products, livestock,...

  2. 29 CFR 780.155 - Delivery “to carriers for transportation to market.”

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... OF LABOR STATEMENTS OF GENERAL POLICY OR INTERPRETATION NOT DIRECTLY RELATED TO REGULATIONS... market” includes taking agricultural or horticultural commodities, dairy products, livestock, bees...

  3. 18 CFR 415.32 - Permitted uses generally.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... capacity of the floodway: (1) Agricultural uses such as general farming, livestock, and dairy farming, horticulture, truck farming, sod farming, forestry, wild crop harvesting, and normal operating...

  4. 18 CFR 415.32 - Permitted uses generally.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... capacity of the floodway: (1) Agricultural uses such as general farming, livestock, and dairy farming, horticulture, truck farming, sod farming, forestry, wild crop harvesting, and normal operating...

  5. Clonal preservation of apricot, peach and nut trees

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Climate change will affect the geographical area suitable for cultivation of fruit and nut trees; hence, preserving genetic diversity of horticultural trees is imperative for securing our future food supply. Many tree species are preserved as seeds but horticultural cultivars, elite and breeding lin...

  6. Pelletized biochar as a carrier for AM fungi in the on-farm system of inoculum production in compost and vermiculite mixtures

    Technology Transfer Automated Retrieval System (TEKTRAN)

    On farm production of arbuscular mycorrhizal [AM] fungi is suitable for vegetable and horticultural crop production because the inocula may be efficiently mixed into horticultural potting media for plant production in the greenhouse. These inocula are not amenable for use in row crop production bec...

  7. 26 CFR 1.1402(c)-3 - Employees.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... undertakes to produce agricultural or horticultural commodities (including livestock, bees, poultry, and fur-bearing animals and wildlife) on such land, (2) The agricultural or horticultural commodities produced by... tenant, and (3) The amount of such individual's share depends on the amount of the agricultural...

  8. 7 CFR 319.37-7 - Postentry quarantine.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... horticultural varieties designated as resistant to black stem rust in accordance with § 301.38-1 of this chapter... black stem rust in accordance with § 301.38-1 of this chapter) All. Mahonia spp. (mahonia) destined to... and horticultural varieties designated as resistant to black stem rust in accordance with §...

  9. 29 CFR 780.114 - Wild commodities.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... horticultural commodities.” Transplanted branches which were cut from plants growing wild in the field or forest... harvesting of wild commodities such as mosses, wild rice, burls and laurel plants, the trapping of wild... in “the production, cultivation, growing, and harvesting of agricultural or horticultural...

  10. 29 CFR 780.114 - Wild commodities.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... horticultural commodities.” Transplanted branches which were cut from plants growing wild in the field or forest... harvesting of wild commodities such as mosses, wild rice, burls and laurel plants, the trapping of wild... in “the production, cultivation, growing, and harvesting of agricultural or horticultural...

  11. 29 CFR 780.114 - Wild commodities.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... horticultural commodities.” Transplanted branches which were cut from plants growing wild in the field or forest... harvesting of wild commodities such as mosses, wild rice, burls and laurel plants, the trapping of wild... in “the production, cultivation, growing, and harvesting of agricultural or horticultural...

  12. 29 CFR 780.114 - Wild commodities.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... horticultural commodities.” Transplanted branches which were cut from plants growing wild in the field or forest... harvesting of wild commodities such as mosses, wild rice, burls and laurel plants, the trapping of wild... in “the production, cultivation, growing, and harvesting of agricultural or horticultural...

  13. 29 CFR 780.114 - Wild commodities.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... horticultural commodities.” Transplanted branches which were cut from plants growing wild in the field or forest... harvesting of wild commodities such as mosses, wild rice, burls and laurel plants, the trapping of wild... in “the production, cultivation, growing, and harvesting of agricultural or horticultural...

  14. Interactions between 1-MCP and controlled atmosphere storage on quality and storage disorders of fruits and vegetable.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The use of 1-methycyclopropene (1-MCP) to maintain quality attributes of horticultural products has been investigated extensively. Commercial applications of 1-MCP (SmartFreshTM), are made to a range of horticultural crops, including avocados, bananas, melons, persimmons and tomatoes, but the major...

  15. Interactions between 1-MCP and controlled atmospheres on quality and storage disorders of fruits and vegetable

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The use of 1-methycyclopropene (1-MCP) to maintain quality attributes of horticultural products has been investigated extensively. Commercial applications of 1-MCP (SmartFreshTM), are made to a range of horticultural crops, including avocados, bananas, melons, persimmons and tomatoes, but the major...

  16. Soilborne Diseases of the Nursery Industry: USDA-ARS and OSU Team Up to Tackle this Pernicious Problem

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Soilborne diseases are a serious problem affecting many crop plants of the ornamental nursery industry. Recently, the Horticultural Crops Research Laboratory (USDA-ARS) and Oregon State University received funding from the Floriculture and Nursery Research Initiative via the Horticultural Research I...

  17. Peru, People and Plants.

    ERIC Educational Resources Information Center

    Thompson, Dennis

    Designed for horticulture, horticulture therapy, and botany students at Edmonds Community College (Washington), this 6-hour module explores the pre-Columbian use of plant materials in Peru and its relationships to cultural practices in modern Peru. The first sections provide basic information about the module, such as its objectives, the concepts…

  18. Development of Literacy Follow-up Materials on Agricultural Vocational Training (Horticulture and Animal Raising) for Adults in Rural Areas. Final Report. Regional Workshop on the Preparation of Literacy Follow-up Materials in Asia and the Pacific (11th, Ho Chi Minh City, Vietnam, November 22-December 3, 1993).

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific and Cultural Organization, Bangkok (Thailand). Principal Regional Office for Asia and the Pacific.

    This final report contains the proceedings and other materials from a workshop to provide training experience in literacy follow-up materials development to participants from UNESCO member states in the Asia and Pacific region. Focus is on practical agricultural training for adults. The proceedings discuss the objectives of the workshop and…

  19. No latest title...

    THOMAS, 113th Congress

    Rep. Chabot, Steve [R-OH-1

    2013-06-14

    06/25/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  20. No latest title...

    THOMAS, 113th Congress

    Rep. Royce, Edward R. [R-CA-39

    2013-05-15

    05/22/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  1. DEVELOPMENT OF AN ELECTROSPRAY MASS SPECTROMETRIC METHOD FOR DETERMINING PERCHLORATE IN FERTILIZERS

    EPA Science Inventory

    An electrospray mass spectrometric method has been developed for application to agricultural and horticultural fertilizers to determine perchlorate. After fertilizers are leached or dissolved in water, the method relies on the formation of stable ion pair complex of the perchlor...

  2. Maple Tapping Access Program Act

    THOMAS, 113th Congress

    Rep. Welch, Peter [D-VT-At Large

    2013-03-19

    04/02/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  3. 26 CFR 1.1402(a)-13 - Income from agricultural activity.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... produce agricultural or horticultural commodities (including livestock, bees, poultry, and fur-bearing... livestock, bees, poultry, and fur-bearing animals and wildlife) on such land, and that there shall...

  4. 26 CFR 1.1402(a)-13 - Income from agricultural activity.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... produce agricultural or horticultural commodities (including livestock, bees, poultry, and fur-bearing... livestock, bees, poultry, and fur-bearing animals and wildlife) on such land, and that there shall...

  5. 26 CFR 1.1402(a)-13 - Income from agricultural activity.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... produce agricultural or horticultural commodities (including livestock, bees, poultry, and fur-bearing... livestock, bees, poultry, and fur-bearing animals and wildlife) on such land, and that there shall...

  6. To amend the Federal Insecticide, Fungicide, and Rodenticide Act to increase the availability of pesticides for the management of parasitic pests that adversely impact the health of managed pollinator bees, and for other purposes.

    THOMAS, 113th Congress

    Rep. Scott, Austin [R-GA-8

    2014-09-10

    09/22/2014 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  7. EPA Maximum Achievable Contraction of Technocrats Act of 2013

    THOMAS, 113th Congress

    Rep. Griffith, H. Morgan [R-VA-9

    2013-12-03

    12/16/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  8. 29 CFR 788.18 - Preparing other forestry products.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... extensive agricultural or horticultural techniques. See 29 CFR 780.205 for further discussion. Gathering and... substances of such plants and trees. Included among these are decorative greens such as holly, ferns,...

  9. 29 CFR 788.18 - Preparing other forestry products.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... extensive agricultural or horticultural techniques. See 29 CFR 780.205 for further discussion. Gathering and... substances of such plants and trees. Included among these are decorative greens such as holly, ferns,...

  10. 29 CFR 788.18 - Preparing other forestry products.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... extensive agricultural or horticultural techniques. See 29 CFR 780.205 for further discussion. Gathering and... substances of such plants and trees. Included among these are decorative greens such as holly, ferns,...

  11. Seed Availability and Competition Act of 2013

    THOMAS, 113th Congress

    Rep. Kaptur, Marcy [D-OH-9

    2013-01-04

    02/04/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  12. Expressing the sense of the House of Representatives that specialty crops are a vital part of agriculture in the United States, that the Committee on Agriculture should propose funding for programs that support specialty crops priorities, and that legislation should be passed that includes funding reflecting specialty crops as a growing and important part of United States agriculture.

    THOMAS, 113th Congress

    Rep. DelBene, Suzan K. [D-WA-1

    2013-04-25

    05/03/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  13. Theme: Serving Individuals with Disabilities.

    ERIC Educational Resources Information Center

    Frick, Marty; And Others

    1993-01-01

    Includes "Reviewing Commitment to Individuals with Disabilities" (Frick); "Modifying Laboratory Equipment" (Silletto); "Equine Facilitated Therapy" (Hoover et al.); "Horticultural Therapy" (Rees, Iverson); "How Accessible Is Your Agriculture Program? (Delks, Sillery); "Agricultural Education for the Mentally Handicapped" (Phillips, Dormody);…

  14. 37 CFR 6.1 - International schedule of classes of goods and services.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., science and photography, as well as in agriculture, horticulture and forestry; unprocessed artificial... data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers;...

  15. 7 CFR 3406.11 - Scope of a teaching proposal.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... incorporate the most recent advances in subject matter, research on teaching and learning theory, and... advances in educational research which have substantiated the theory that differences in the learning... development in horticulture; curriculum development, faculty enhancement, and student experiential learning...

  16. Descriptor data of Castanea accessions at the University of Missouri

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Chestnut, Castanea L., trees were propagated and planted in repositories at the Horticulture and Agroforestry Research Center, New Franklin, Missouri in 1996, 2002, 2009 with additional accessions acquired annually. Trees have been pruned, fertilized, irrigated, and pests controlled following Unive...

  17. The Ethical Role of Information in Sustainable Communities.

    ERIC Educational Resources Information Center

    Lockway, Larry

    1995-01-01

    Discussion of sustainable communities, or sustainable development, focuses on the ethical role of information in fostering sustainable environmental development. Topics include background information, developments in information technology, permaculture in the area of horticulture and information ethics, information ethics models, hardware…

  18. 26 CFR 1.1402(a)-13 - Income from agricultural activity.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... (including livestock, bees, poultry, and fur-bearing animals and wildlife) on land owned or leased by such... horticultural commodities (including livestock, bees, poultry, and fur-bearing animals and wildlife) on...

  19. 26 CFR 1.1402(a)-13 - Income from agricultural activity.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... produce agricultural or horticultural commodities (including livestock, bees, poultry, and fur-bearing... livestock, bees, poultry, and fur-bearing animals and wildlife) on such land, and that there shall...

  20. Speaking of Tomatoes.

    ERIC Educational Resources Information Center

    Lee, Sherry

    1983-01-01

    High school students at the Texas School for the Deaf can participate in a horticulture class featuring both theoretical and practical knowledge of hydroponics. The course allows students to learn life cycle concepts while engaging in a new technology. (CL)

  1. Nutrient uptake of ornamental plants exposed to arsenic in hydroponic solution

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Arsenic-based agro-chemicals have contaminated considerable acreage on turf-farms, orchards, and around horticultural production structures. A study was undertaken to evaluate iris (Iris virginica), switchgrass (Panicum virgatum), Tithonia rotundiflora, Coreopsis lanceolata, Sunflower (Helianthus an...

  2. Alternative disinfectant water treatments

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Alternative disinfestant water treatments are disinfestants not as commonly used by the horticultural industry. Chlorine products that produce hypochlorous acid are the main disinfestants used for treating irrigation water. Chlorine dioxide will be the primary disinfestant discussed as an alternativ...

  3. Synonymization of key pest species within the Bactrocera dorsalis species complex (Diptera: Tephritidae): taxonomic changes based on a review of 20 years of integrative morphological, molecular, cytogenetic, behavioral, and c

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Bactrocera papayae Drew & Hancock, Bactrocera philippinensis Drew & Hancock, Bactrocera carambolae Drew & Hancock, and Bactrocera invadens Drew, Tsuruta & White are four horticultural pest tephritid fruit fly species that are highly morphologically and genetically similar to the destructive pest, th...

  4. 20 CFR 404.1056 - Explanation of agricultural labor.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... agricultural labor. An example of this is the extraction of juices from fruits or vegetables. However, work in... horticultural product. For example, all apples are a commodity, while apples and oranges are two...

  5. 20 CFR 404.1056 - Explanation of agricultural labor.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... agricultural labor. An example of this is the extraction of juices from fruits or vegetables. However, work in... horticultural product. For example, all apples are a commodity, while apples and oranges are two...

  6. 20 CFR 404.1056 - Explanation of agricultural labor.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... agricultural labor. An example of this is the extraction of juices from fruits or vegetables. However, work in... horticultural product. For example, all apples are a commodity, while apples and oranges are two...

  7. 20 CFR 404.1056 - Explanation of agricultural labor.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... agricultural labor. An example of this is the extraction of juices from fruits or vegetables. However, work in... horticultural product. For example, all apples are a commodity, while apples and oranges are two...

  8. 20 CFR 404.1056 - Explanation of agricultural labor.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... agricultural labor. An example of this is the extraction of juices from fruits or vegetables. However, work in... horticultural product. For example, all apples are a commodity, while apples and oranges are two...

  9. Saving America's Pollinators Act of 2013

    THOMAS, 113th Congress

    Rep. Conyers, John, Jr. [D-MI-13

    2013-07-16

    08/13/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  10. Analysis of sesquiterpene distributions in leaves, branches, and trunks of avocado (Persea americana Mill.)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Avocado is a commercially valuable fruit crop cultivated in tropical and subtropical climates throughout the world. Taxonomists recognize three horticultural races of avocado, consisting of Mexican (Persea americana var. drymifolia), Guatemalan (P. americana var. guatemalensis), and West Indian (P. ...

  11. No latest title...

    THOMAS, 113th Congress

    Rep. Conyers, John, Jr. [D-MI-13

    2013-07-16

    08/13/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  12. No latest title...

    THOMAS, 113th Congress

    Rep. Ellison, Keith [D-MN-5

    2013-05-17

    06/03/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  13. Directory of National Recreation Organizations.

    ERIC Educational Resources Information Center

    Exceptional Parent, 1991

    1991-01-01

    Thirty national recreation organizations serving individuals with disabilities are listed, along with addresses and telephone numbers. Sample recreational activities covered include Boy Scouts and Girls Scouts, various wheelchair sports, skiing, golfing, and horticultural therapy. (JDD)

  14. Fecundity and longevity of Argentine ant (Hymenoptera: Formicidae) queens in response to irradiation

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Irradiation is a postharvest quarantine treatment option to control ants and other hitchhiker pests on fresh horticultural products traded between countries. As little is known about irradiation effects on ants, radiotolerance of the Argentine ant, Linepithema humile (Mayr) (Hymenoptera: Formicidae...

  15. 14 CFR 137.29 - General.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... involving only the dispensing of water on forest fires by rotorcraft external-load means. However, the..., horticulture, or forest preservation in accordance with the operating rules of this subpart. (d) Sections...

  16. 14 CFR 137.29 - General.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... involving only the dispensing of water on forest fires by rotorcraft external-load means. However, the..., horticulture, or forest preservation in accordance with the operating rules of this subpart. (d) Sections...

  17. 14 CFR 137.29 - General.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... involving only the dispensing of water on forest fires by rotorcraft external-load means. However, the..., horticulture, or forest preservation in accordance with the operating rules of this subpart. (d) Sections...

  18. 14 CFR 137.29 - General.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... involving only the dispensing of water on forest fires by rotorcraft external-load means. However, the..., horticulture, or forest preservation in accordance with the operating rules of this subpart. (d) Sections...

  19. 14 CFR 137.29 - General.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... involving only the dispensing of water on forest fires by rotorcraft external-load means. However, the..., horticulture, or forest preservation in accordance with the operating rules of this subpart. (d) Sections...

  20. Publications of the space biology program for 1975-1977: A special bibliography

    NASA Technical Reports Server (NTRS)

    Felt, J. C. (Compiler); Halstead, T. W. (Compiler)

    1978-01-01

    Documents cited represent research encompassing several disciplines of space biology: botany and plant pathology, physiology and biophysics, agricultural and environmental sciences, anatomy and embryology, cellular and comparative biology, horticulture and aerospace biology.

  1. Screening ornamentals for their potential as As Accumulator Plants

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Arsenic-based pesticides, herbicides and insecticides are used in horticultural operations resulting in soil contamination around greenhouse structures. Phytoremediation and phytostabilization are two techniques for treating arsenic (As) contaminated soil. Several ornamental plant species, Iris (Ir...

  2. Peat

    USGS Publications Warehouse

    Jasinski, S.M.

    2000-01-01

    The United States continued to be significant producer and consumer of peat for horticultural and industrial applications in 1999. Florida, Michigan and Minnesota were the largest producing states, in order of output.

  3. No latest title...

    THOMAS, 113th Congress

    Rep. DelBene, Suzan K. [D-WA-1

    2013-04-25

    05/03/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  4. No latest title...

    THOMAS, 113th Congress

    Rep. Carson, Andre [D-IN-7

    2013-05-23

    06/03/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  5. Acute exposure to low dose radiation disrupts reproduction and shortens survival of Wasmannia auropunctata (Hymenoptera Formicidae)queens

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Irradiation is a postharvest quarantine treatment option to control ants and other hitchhiker pests on fresh horticultural products exported from Hawaii. The radiotolerance of the invasive little fire ant, Wasmannia auropunctata (Roger) (Hymenoptera: Formicidae: Myrmicinae), was studied to determine...

  6. Mobile Plant Laboratory.

    ERIC Educational Resources Information Center

    Carrier, Judy

    1979-01-01

    Describing the North Carolina Botanical Garden's horticultural therapy program, which provides activity therapy for the mental and physical well-being of people of all ages, this article details an educational training program. Journal availabillity: see RC 503 504. (SB)

  7. PESTT Act

    THOMAS, 113th Congress

    Rep. Mulvaney, Mick [R-SC-5

    2013-02-14

    03/01/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  8. To amend the Agricultural Adjustment Act to exclude raisins from agricultural marketing orders.

    THOMAS, 113th Congress

    Rep. Radel, Trey [R-FL-19

    2013-07-25

    08/13/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  9. Infection Reduction Labeling Act of 2014

    THOMAS, 113th Congress

    Rep. Latta, Robert E. [R-OH-5

    2014-07-31

    09/22/2014 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  10. To amend the Export Apple Act to permit the export of apples to Canada in bulk bins without certification by the Department of Agriculture.

    THOMAS, 113th Congress

    Rep. Owens, William L. [D-NY-21

    2013-03-20

    04/02/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  11. Organic Standards Protection Act

    THOMAS, 113th Congress

    Rep. Capps, Lois [D-CA-24

    2013-06-17

    06/25/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  12. Food Aid Reform Act

    THOMAS, 113th Congress

    Rep. Royce, Edward R. [R-CA-39

    2013-05-15

    05/22/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  13. Native American Seeds Protection Act of 2013

    THOMAS, 113th Congress

    Rep. Lujan Grisham, Michelle [D-NM-1

    2013-12-16

    01/07/2014 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  14. Eliminate the MAP Act

    THOMAS, 113th Congress

    Rep. Chabot, Steve [R-OH-1

    2013-06-14

    06/25/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  15. Farming Flexibility Act of 2013

    THOMAS, 113th Congress

    Rep. Ribble, Reid J. [R-WI-8

    2013-04-17

    05/03/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  16. Putting Our Resources Toward Security (PORTS) Act

    THOMAS, 113th Congress

    Rep. Vela, Filemon [D-TX-34

    2013-02-06

    02/25/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  17. Citrus Disease Research and Development Trust Fund Act of 2013

    THOMAS, 113th Congress

    Rep. Buchanan, Vern [R-FL-16

    2013-02-27

    03/13/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  18. Review of antimicrobial and antioxidative activities of chitosans in food

    Technology Transfer Automated Retrieval System (TEKTRAN)

    shellfish, arises from the fact that they are reported to exhibit numerous health-related beneficial effects, including strong antibiotic and antioxidative activities in foods. The extraordinary interest in the chemistry and application in agriculture, horticulture, environmental science, industry,...

  19. Tomato expressing Arabidopsis glutaredoxin gene AtGRXS17 confers tolerance to chilling stress via modulating cold responsive components

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Chilling stress is a production constraint of tomato, a tropical origin, chilling-sensitive horticultural crop. The development of chilling tolerant tomato thus has significant potential to impact tomato production. Glutaredoxins (GRXs) are ubiquitous oxidoreductases, which utilize the reducing powe...

  20. Preserving Healthy Food for the Hungry Act

    THOMAS, 113th Congress

    Rep. Carson, Andre [D-IN-7

    2013-05-23

    06/03/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  1. To prohibit the use, production, sale, importation, or exportation of any pesticide containing atrazine.

    THOMAS, 113th Congress

    Rep. Ellison, Keith [D-MN-5

    2013-05-17

    06/03/2013 Referred to the Subcommittee on Horticulture, Research, Biotechnology, and Foreign Agriculture. (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

  2. SOEP: Mechanics.

    ERIC Educational Resources Information Center

    Jacobs, Clinton O.; And Others

    1984-01-01

    A series of articles examines aspects of supervised occupational experience programs (SOEP) in agricultural mechanics, including production agriculture, horticulture, technical institute programs, mechanized agriculture, safety education, point guide system for developing competencies, and teacher education's responsibility. (SK)

  3. Citizen's Guide to Pesticides.

    ERIC Educational Resources Information Center

    Environmental Protection Agency, Washington, DC. Office of Pesticide Programs.

    This guide provides suggestions on pest control and safety rules for pesticide use at home. Pest prevention may be possible by modification of pest habitat: removal of food and water sources, removal or destruction of pest shelter and breeding sites, and good horticultural practices that reduce plant stress. Nonchemical alternatives to pesticides…

  4. Cable Television: A Method for Delivering Information.

    ERIC Educational Resources Information Center

    Nebraska Univ., Lincoln. Cooperative Extension Service.

    This report presents the recommendations of a committee that was formed to explore the possibility of using cable television networks as a method of delivering extension education programs to urban audiences. After developing and testing a pilot project that used cable television as a mode to disseminate horticulture and 4-H leader training…

  5. 26 CFR 1.263A-4 - Rules for property produced in a farming business.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... to replanting plants bearing jojoba beans do not qualify for the exception provided in this paragraph... horticultural commodity, including both plants and animals, is engaged in the production of property. Section... indirect costs of producing plants or animals generally include preparatory costs allocable to the plant...

  6. 26 CFR 1.263A-4 - Rules for property produced in a farming business.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... to replanting plants bearing jojoba beans do not qualify for the exception provided in this paragraph... horticultural commodity, including both plants and animals, is engaged in the production of property. Section... indirect costs of producing plants or animals generally include preparatory costs allocable to the plant...

  7. 26 CFR 1.263A-4 - Rules for property produced in a farming business.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... to replanting plants bearing jojoba beans do not qualify for the exception provided in this paragraph... horticultural commodity, including both plants and animals, is engaged in the production of property. Section... indirect costs of producing plants or animals generally include preparatory costs allocable to the plant...

  8. 26 CFR 1.263A-4 - Rules for property produced in a farming business.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... to replanting plants bearing jojoba beans do not qualify for the exception provided in this paragraph... horticultural commodity, including both plants and animals, is engaged in the production of property. Section... indirect costs of producing plants or animals generally include preparatory costs allocable to the plant...

  9. Effects of media and species on soil CO2 efflux in the landscape

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Increasing concentrations of greenhouse gases (GHG) including carbon dioxide, methane, and nitrous oxide are widely believed to be the main contributing factors leading to global climate change. The horticulture industry has the potential to improve GHG conditions through sequestering carbon (C) in ...

  10. Strategies for carbon sequestration and reducing greenhouse gas emissions from nursery production systems

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Currently two experiments are being conducted to determine the impact of the ornamental horticulture industry on GHG emissions and on C sequestration. One study focuses on the effect of nursery container size to begin indentifying components of the industry that may impact GHG emissions. In this stu...

  11. Species and media effects on soil carbon dynamics in the landscape: opportunities for climate change mitigation from urban landscape plantings

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Most scientists now agree that climate change is occurring as a direct result of human activities. Agricultural production has been shown to be a major emitter of greenhouse gas (GHG) emissions; however, horticulture production is unique in that it also has the potential to serve as a major carbon (...

  12. The spined soldier bug Podisus: an important commercial and natural predator

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The spined soldier bug, Podisus maculiventris is an important generalist predator of many species of insect pests in different horticultural crops. We studied the effects of temperature, prey preference, reproduction in laboratory and field studies, and population dynamics. We found the following ge...

  13. Phytosanitary irradiation of Diatraea saccharalis, D. grandiosella, and Eoreuma loftini (Lepidoptera: Pyraloidea: Crambidae: Crambinae)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Phytosanitary irradiation (PI) is increasingly being used to disinfest horticultural commodities of invasive quarantine pests. Most disinfestation is done with generic treatments, where one dose is scheduled for a group of pests and/or commodities. The current generic treatment that USDA-APHIS uses...

  14. Golovinomyces spadaceus causing powdery mildew on Coreopsis hybrid 'Full Moon' (Heliantheae, Asteraceae) in Washington State

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Symptoms of powdery mildew were observed on a Coreopsis cultivar in the Horticulture and Landscape Architecture Garden on the Washington State University campus, Pullman, Whitman County, Washington. White to off-white sporulating mycelial areas were ~5mm in diam to confluent and confined to adaxial...

  15. Local Produce, Foreign Labor: Labor Mobility Programs and Global Trade Competitiveness in Canada

    ERIC Educational Resources Information Center

    Preibisch, Kerry L.

    2007-01-01

    Temporary visa workers are increasingly taking on a heightened profile in Canada, entering the workforce each year in greater numbers than immigrant workers with labor mobility rights (Sharma 2006). This paper examines the incorporation of foreign workers in Canadian horticulture under the Seasonal Agricultural Workers Program (SAWP). I argue that…

  16. Exploring Agribusiness and Natural Resources. Competency Based Education Curriculum. Student Material.

    ERIC Educational Resources Information Center

    Lawrence, Layle D.

    This competency-based prevocational exploration curriculum in agribusiness and natural resources is divided into the following eight areas: agricultural business (sales); animal science (health and grooming); horticulture (grafting and budding); agricultural products (grading eggs); plant science (germination); soil science (soil acidity and…

  17. Western flower thrips can transmit Tomato spotted wilt virus from infected tomato fruits

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Tomato spotted wilt virus (TSWV) has long been known to spread via plant propagation materials including transplants. Global dissemination of TSWV has also been linked to transport of thrips-infested and virus-infected horticultural and floricultural products through trade and commerce. However, th...

  18. Molecular Characterization and Genetic Structure in Avocado (Persea americana Mill.) Using Simple Sequence Repeat (SSR) Markers

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Avocado (Persea americana Mill.) is an economically important tropical fruit native to Mesoamerica. It belongs to the Lauraceae family and is subdivided in three horticultural races (Guatemalan, Mexican, and West Indian) based primarily on ecological adaptation, botanical and physiological traits. T...

  19. Supplement to the "Compendium of Occupational Profiles at the Skilled Blue- and White-collar Worker Level." Situations and Trends: Supply and Demand for Skilled Workers. CEDEFOP Panorama. Supplement.

    ERIC Educational Resources Information Center

    Sellin, Burkart

    A study examined the supply and demand for skilled workers in the following sectors throughout the member countries of the European Community: agriculture (including horticulture and forestry); food industry and trades; hotels, restaurants, and catering industry; tourism; transport; textile industry; textile clothing; leather; wood; building…

  20. Integrating Occupational Safety and Health into TAFE Courses: Policy Guidelines.

    ERIC Educational Resources Information Center

    Hill, Graham L.; Mageean, Pauline

    Intended to help administrators, curriculum developers, and teachers integrate occupational health and safety into Australian vocational courses on bricklaying, metal fabrication, and horticulture, this document suggests specific policies and provides further amplification concerning three general policies for that integration. The three general…

  1. Remote Shutoff Stops Runaway Lawnmower

    ERIC Educational Resources Information Center

    Grambo, Alan A.

    2007-01-01

    In this article, the author describes how electronics students at Central Nine Career Center designed a kill switch circuit to stop a runaway lawnmower. This project is ideal for a career center since the electronics/robotics, small engines and horticulture classes can all work together on their respective parts of the modification, installation…

  2. Tissue-specific high expression of TFL1 correlates with citrus juvenility

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Early flowering is a desirable trait for many horticultural crops including citrus, which are woody trees that can have a juvenile phase from several to over 10 years. Research on floral organ development has identified genes critical to the regulation of juvenility/maturity. TFL1 is a negative regu...

  3. An Educator's Dilemma

    ERIC Educational Resources Information Center

    McCallion, Alison

    2009-01-01

    In this article, the author describes how to bring Paulo Freire (or his ideas) into a learning group that visits the Botanic Gardens as part of a horticultural course and how her experiences at an art exhibition on two different occasions (both in Ireland and Sweden) impacted on her work as a teacher. As a result of working with students and…

  4. Global Conservation of Strawberries: A Strategy is Formed

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Strawberry was listed in Annex 1 of the International Treaty on Plant Genetic Resources as a crop of global horticultural significance. The Global Crop Diversity Trust and Bioversity International requested that a global conservation strategy be developed for strawberry. A coordinator was appointed ...

  5. Global Conservation of Strawberries: A Strategy is Formed

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Strawberry was listed in Annex 1 of the International Treaty on Plant Genetic Resources as a crop of global horticultural significance. The Global Crop Diversity Trust and Bioversity International requested that a global conservation strategy be developed for strawberry. A coordinator was appointed...

  6. Screening citrus rootstock genotypes for tolerance to the Phytophthora-Diaprepes Complex under field conditions

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Rootstock germplasm from the USDA Horticultural Research Lab breeding program was evaluated in each of four growing seasons at the Florida Research Center for Agricultural Sustainability in Vero Beach, Florida. The screening site is located on Winder and Manatee fine sand soils naturally infested w...

  7. Sexual Reproduction and Breeding

    Technology Transfer Automated Retrieval System (TEKTRAN)

    In the second edition of Plant Propagation Concepts and Laboratory Exercises, we have combined the first edition chapters 36: Sexual Reproduction in Angiosperms and 37: Breeding Horticultural Plants into the present single chapter Sexual Reproduction and Breeding. These topics are so closely relate...

  8. Using a Mousy, Little Flower to Understand the Flamboyant Ones.

    ERIC Educational Resources Information Center

    Gillis, Anna Maria

    1995-01-01

    Discusses major leaps in knowledge about the production of flowers that have come from studying genes that regulate the flowers of mouse ear cress (Arabidopsis thaliana). Examines the ABC model of flower morphogenesis, commonality of genes, evolution of angiosperms, and agricultural and horticultural potential. (LZ)

  9. Have Them Grow Seeds Even if It's in a Cigar Box

    ERIC Educational Resources Information Center

    Altizer, John R.

    1977-01-01

    A 9-week career awareness class in pre-vocational agriculture at a junior high school in Florida allows students hands-on experience to help build awareness of careers in agricultural production, agricultural resources, ornamental horticulture, agricultural products, agricultural mechanics, and agricultural sales and service. (HD)

  10. Society News: Astronomy in the garden wins RHS prize

    NASA Astrophysics Data System (ADS)

    2007-10-01

    The Spaced Out garden, sponsored by the RAS, won a Gold Medal from the Royal Horticultural Society at the Tatton Park Garden Show in August. It also provided a showcase for a model of the Philae Lander, part of ESA's Rosetta mission to comet 67 P/Churyumov-Gerasimenko and an unusual occasion for astronomy outreach.

  11. DETECTION AND IMPLICATIONS OF EARLY AGROBACTERIUM TUMEFACIENS INFECTION OF PARADOX SEEDS AND SEEDLINGS

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Paradox (Juglans hindsii x J. regia), the dominant rootstock used in California, USA walnut production, has many desirable horticultural characteristics, but is highly susceptible to crown gall. Crown gall, caused by the soil-borne bacterium Agrobacterium tumefaciens, can not be consistently control...

  12. Prevention Work with Children Disaffected from School: Findings from the Evaluation of Two Innovative Community-Based Projects

    ERIC Educational Resources Information Center

    Gray, Paul; Seddon, Toby

    2005-01-01

    Purpose: To report on findings from the evaluation of two innovative community-based prevention projects in the UK targeted at children disaffected from school, one involving football the other horticulture. Design/methodology/approach: Qualitative inquiry focusing on three areas: "theories of change" underpinning the projects; referral and…

  13. Innovative Programs in Agricultural Education.

    ERIC Educational Resources Information Center

    American Vocational Association, Inc., Washington, DC.

    Developmental programs resulting from the increased emphasis on off-farm agricultural occupations and considered innovative by state wupervisors of agricultural education are described: (1) 17 high school vocational agriculture programs in horticulture, agricultural mechanics, forestry and conservation, agriculture and distribution, cooperative…

  14. Biotechnology application of organic mulch as an alternative to the plastic mulch-methyl bromide system for suppressing purple and yellow nutsedges in tomato production

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Cyperus rotundus and C. esculentus (purple and yellow nutsedges, respectively) are among the most serious weed problems in many cropping systems in Florida and other parts of the world. They have been reported to cause yield losses of 20-89% in various horticultural crops. Production systems based o...

  15. Application of bio-active organic mulch for suppressing purple and yellow nutsedges in tomato production

    Technology Transfer Automated Retrieval System (TEKTRAN)

    When methyl bromide has been totally phased out, the losses due to nutsedges (Cyperus rotundus and C. esculentus) are expected to increase in conventional horticultural crops. Organic production will continue to suffer due to a lack of effective weed control measures. Thus, nine organic hays (shoot ...

  16. Plant Genetic Resources: Not Just for Plant Breeding Anymore

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The U.S. National Plant Germplasm System maintains over 480,000 accessions of plant genetic resources from 2,000 genera and 12,400 species. These genetic resources consist of agronomic crops, horticultural crops, fruit and nut crops, medicinal plants, ornamental crops, and other species. Each year...

  17. Agriculture Comes to the City

    ERIC Educational Resources Information Center

    Miller, Boyce

    1975-01-01

    The development of a four-year vocational program in ornamental horticulture at a Baton Rouge high school is described by one of the program's two teachers. From 250 to 300 students participate each year, receiving basic training and experiences enabling them to secure jobs and to improve their home surroundings. (AJ)

  18. SUNY at Sixty: The Promise of the State University of New York

    ERIC Educational Resources Information Center

    Leslie, W. Bruce, Ed.; Clark, John B., Ed.; O'Brien, Kenneth P., Ed.

    2010-01-01

    The State University of New York is America's largest comprehensive public university system, with sixty-four campuses, including community colleges, colleges of technology, university colleges, research universities, medical schools, academic medical centers, and specialized campuses in fields as diverse as optometry, ceramics, horticulture,…

  19. Control of rugose spiraling whitefly using biological insecticides, 2014

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The objective of this study was to evaluate the efficacy of selected biological insecticides against a new invasive whitefly pest, Aleurodicus rugioperculatus Martin, in white bird of paradise under field condition. The trial was conducted at United States Horticultural Research Laboratory in Fort P...

  20. A Smartphone Application for Landscape Plants: A Case Study and Guide to Developing a Decision-Making Application

    ERIC Educational Resources Information Center

    Hansen, Gail; Purcell, Scott

    2012-01-01

    Smart phone applications are rapidly gaining popularity, and Extension programs are eager to use this teaching tool. But developing an application can be time intensive and costly. Students in environmental horticulture at the University of Florida teamed with the Florida-Friendly Landscaping™ program to develop an application with an extensive…

  1. The Trying Out of the Essay: How Scientific Essayists Compose.

    ERIC Educational Resources Information Center

    Dowdy, Diane

    Six scientific essayists were interviewed to gain some understanding of their writing processes. The writers were Roger Sawin, who writes for "Horticulture"; Harold Morowitz who writes for "Hospital Practices,""Science 82" and "Science 83"; Stephen Jay Gould who writes for "Natural History"; Jeremy Bernstein who writes for the "New Yorker" and…

  2. Feeding deterrence and inhibitory effects of bee balm (Monarda didyma) leaves on fall armyworm

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The fall armyworm [Spodoptera frugiperda (J.E. Smith)] is a serious pest of many field and horticulture crops. Because of the many advantages for the use of plant-derived pesticides, we tested whether bee balm (Monarda didyma L.) leaves could have feeding deterrence on fall armyworm. When S. frugipe...

  3. Making Your School Site an Environmental Smorgasboard.

    ERIC Educational Resources Information Center

    Carman, Sam

    1986-01-01

    Describes ways to enhance a school's outdoor facilities to provide more educational opportunities: nesting boxes, ground water monitoring holes, nature's "swamp shop," soil studies, weather stations, wildlife habitat improvement, forestry practices, aquatic resources, archaeological dig sites, horticulture demonstration areas, outdoor seating…

  4. Using food-safe ingredients to optimize the efficacy of oil-in-water emulsions of essential oils for control of waxy insects

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Waxy insects such as mealybugs and scale insects are difficult to kill using contact insecticides because the waxes produced by these insects form a physical barrier preventing chemical penetration. Exported horticultural commodities can be rejected or destroyed if found infested at destination. Pos...

  5. Iron induced nickel deficiency

    Technology Transfer Automated Retrieval System (TEKTRAN)

    It is increasingly apparent that economic loss due to nickel (Ni) deficiency likely occurs in horticultural and agronomic crops. While most soils contain sufficient Ni to meet crop requirements, situations of Ni deficiency can arise due to antagonistic interactions with other metals. This study asse...

  6. Iron-induced nickel deficiency in pecan

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Economic loss due to nickel (Ni) deficiency can occur in horticultural and agronomic crops. This study assesses impact of excessive iron (Fe) on expression of Ni deficiency in pecan [Carya illinoinensis (Wangenh.) K. Koch]. Field and greenhouse experiments found Ni deficiency to be inducible by ei...

  7. Growing Healing One Garden at a Time.

    PubMed

    Ashman, Julann

    2016-01-01

    Evidence exists regarding the effect of horticultural therapy on improving human well-being, including promotion of overall health and quality of life, physical strength, and cardiac function. This article shares how a nurse created a healing garden at Lourdes Hospital, where she works. Resource information about therapeutic gardens is included.

  8. Site-specific management of soil pH and nutrients in blueberry

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Site-specific management of soil pH and fertilizers is one of the most promising strategies in precision agriculture and is potentially applicable to many horticultural crops, including blueberry. Unlike most fruit crops, blueberry is adapted to low soil pH conditions in the range of 4-5.5 and has ...

  9. Toward a longer shelf life of tomato fruit

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Shelf life of ripe tomato fruit is economically very important, from production to the marketing chain, since it determines the cash returns to the grower and the grocer/processor. Shelf life of horticultural edible produce, including tomato, is regulated through myriad physiological, biochemical an...

  10. Annotated world bibliography of host fruits of Bactrocera latifrons (Hendel) (Diptera: Tephritidae)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Bactrocera latifrons (Hendel) (Diptera: Tephritidae) infests many solanaceous plant species, some of which are important horticultural crop species. It has also been found to infest a number of cucurbitaceous plant species as well as a few plant species in other plant families. B. latifrons is of ...

  11. Senior to Senior: Living Lessons

    ERIC Educational Resources Information Center

    Goff, Kathy

    2004-01-01

    Senior to Senior: Living Lessons is a program created to provide meaningful horticulture therapy activities for community minority elders (60 years of age and older) and senior college students (20 years of age and older) from an Historically Black University. The program's objectives were to promote positive intergenerational relationships and to…

  12. 26 CFR 41.4483-3 - Exemption for trucks used for 5,000 or fewer miles and agricultural vehicles used for 7,500 or...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... effect, the transferor will not be liable for any tax on such vehicle for such taxable period if such...-bearing animal, and truck farms, plantations, ranches, nurseries, ranges, orchards, and such greenhouses... horticultural commodity. Greenhouses and other similar structures used primarily for purposes other than...

  13. Two new promising cultivars of mango for Florida

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Mango cultivars are mostly the result of random selections from open pollinated chance seedlings of indigenous or introduced germplasm. The National Germplasm Repository (genebank) at the Subtropical Horticulture Research Station (SHRS) in Miami, Florida is an important mango germplasm repository an...

  14. Chemical ecology of Xyleborus glabratus and implications for monitoring and management

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Abstract Chemical ecology of Xyleborus glabratus and implications for monitoring and management Paul E. Kendra, Wayne S. Montgomery, Jerome Niogret, Elena Q. Schnell, and Nancy D. Epsky USDA-ARS, Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158 The redbay ambrosia b...

  15. Urban Options Solar Greenhouse Demonstration Project. Final report

    SciTech Connect

    Cipparone, L.

    1980-10-15

    The following are included: the design process, construction, thermal performance, horticulture, educational activities, and future plans. Included in appendices are: greenhouse blueprints, insulating curtain details, workshop schedules, sample data forms, summary of performance calculations on the Urban Options Solar Greenhouse, data on vegetable production, publications, news articles on th Solar Greenhouse Project, and the financial statement. (MHR)

  16. Do Modern Forms of Human Capital Matter in Primitive Economies? Comparative Evidence from Bolivia

    ERIC Educational Resources Information Center

    Godoy, R.; Karlan, D.S.; Rabindran, S.; Huanca, T

    2005-01-01

    We examine the correlation between modern human capital and income among adult men in four foraging-horticultural societies of Bolivia. Despite their remote location, we find results similar to those found in developed nations. We find that: (a) education correlates with 4.5% higher overall income and with 5.9% higher wages and math skills…

  17. 26 CFR 1.923-1T - Temporary regulations; exempt foreign trade income.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... pricing methods of section 925(a)(1) or (2) which is allocable to the marketing of agricultural or... distribution is made before the due date under section 6072(b), including extensions, for filing the FSC's... or patrons. (iii) Income attributable to the marketing of agricultural or horticultural products,...

  18. 26 CFR 1.925(a)-1T - Temporary regulations; transfer pricing rules for FSCs.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... section 6072(b), including extensions provided for by section 6081. Provisions for the subsequent... this paragraph. (v) A special grouping rule applies to agricultural and horticultural products sold to... 6072(b), including extensions provided for under section 6081, of the FSC's tax return for the...

  19. 26 CFR 1.923-1T - Temporary regulations; exempt foreign trade income.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... pricing methods of section 925(a)(1) or (2) which is allocable to the marketing of agricultural or... distribution is made before the due date under section 6072(b), including extensions, for filing the FSC's... or patrons. (iii) Income attributable to the marketing of agricultural or horticultural products,...

  20. Current, Short Term, Future and Star Wars Research Projects for Ornamental Crops

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The USDA-ARS Greenhouse Production Research Group is involved in fundamental and developmental plant research aimed at developing tools for early stress detection and efficient agrochemical utilization for protected horticulture crops. The group conducts basic plant biology research with the goal o...

  1. Proposal to conserve the name Olivea tectonae (T.S. Ramakr. & K. Ramakr.) R.L. Mulder against Olivea tectonae (Racib.) Thirum (Basidiomycota)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Teak rust is a problematic disease of Tectona grandis L.f., teak (Lamiaceae), that has its most devastating effects on nursery plants and young plantations where it may cause severe growth stunting due to defoliation. The teak rust fungus is considered to be a threat to forest, horticultural, and a...

  2. Potato spindle tuber viroid detection in phloem exudates and guttation fluid of tomato plants (Solanum lycopersicum)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Potato spindle tuber viroid (PSTVd) is a single-stranded, non protein-encoding, covalently-closed circular RNA molecule (359nt) that infects many horticultural and agricultural crops. PSTVd is mechanically transmitted, replicates in the nucleus, and moves cell-to-cell through plasmodesmata. Though i...

  3. Vegetables of temperate climates: Carrot, parsnip and beetroot

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Carrots, parsnips and beets are horticultural root crops eaten around the world. These root vegetables have a long shelf-life when kept in cold storage. Among them are sources of vitamin A, vitamin C, fiber, and other colorful pigments that provide antioxidant activity. Carrots come in many color...

  4. Dr. Chad E. Finn, 2013 Wilder Medal Recipient

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Dr. Chad Finn took over the leadership of the USDA-ARS small fruit breeding program in Corvallis, Oregon in 1993 after three years working as an extension horticulturist in the Department of Horticulture at the University of Missouri, Columbia. Since taking over this program he has developed what is...

  5. 75 FR 5561 - Notice of Funds Availability (NOFA) Inviting Applications for the Specialty Crop Block Grant...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-03

    ... under 7 CFR Part 1291 (published March 27, 2009; 74 FR 13313). The SCBGP-FB assists State departments of... fruits and vegetables, dried fruit, tree nuts, horticulture, nursery crops (including floriculture). AMS... why the project is important and timely. If funding is being directed at a state marketing...

  6. 77 FR 6531 - Notice of Funds Availability (NOFA) Inviting Applications for the Specialty Crop Block Grant...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-08

    ... March 27, 2009; 74 FR 13313). The SCBGP-FB assists State departments of agriculture in solely enhancing..., dried fruit, tree nuts, horticulture, nursery crops (including floriculture). AMS encourages states to... important and timely and identify the objectives of the project. If the project has the potential to...

  7. Retail Flower Shop Operation and Management. A Teacher's Manual.

    ERIC Educational Resources Information Center

    Stinson, Richard F.; And Others

    Field tested by teachers attending an institute in landscape horticulture July 5-22, 1966, this teacher's manual is one of a series of instructional aids developed by the Department of Agricultural Education at the Pennsylvania State University. The content includes problem areas of: (1) Exploring Occupational Opportunities in the Retail Flower…

  8. Are antioxidants effective for reducing oxidative stress during cryopreservation?

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The development of effective cryopreservation protocols for vegetatively propagated plants is highly important for the long-term conservation of important horticultural crops as well as endangered species. Cryopreservation protocols are already in place for many temperate plants and provide a stable...

  9. A Description and Source Listing of Curriculum Materials in Agricultural Education. 1972-73.

    ERIC Educational Resources Information Center

    American Vocational Association, Washington, DC. Agricultural Education Div.

    Listed are 246 curriculum material items in ten categories: field crops, horticulture, forestry, animal science, soils, diseases and pests, agricultural engineering, agricultural economics, agricultural occupations, and professional. Most materials are annotated and all are classified according to the AGPEX filing system. Bibliographic and…

  10. ASSISTANT GROUNDSKEEPER, TEACHERS COPY.

    ERIC Educational Resources Information Center

    FITTS, JAMES; JOHNSON, JOHNNY

    THE PURPOSE OF THIS DOCUMENT IS TO PROVIDE A STUDY GUIDE FOR VOCATIONAL AGRICULTURE COOPERATIVE EDUCATION STUDENTS PREPARING TO BECOME ASSISTANT GROUNDSKEEPERS. IT WAS PREPARED BY VOCATIONAL AGRICULTURE TEACHERS IN CONSULTATION WITH SUBJECT MATTER SPECIALISTS. SECTIONS IN THE GUIDE INCLUDE (1) INTRODUCTION TO HORTICULTURE, (2) PLANT GROWING MEDIA,…

  11. A Description and Source Listing of Curriculum Materials in Agricultural Education, 1970-1971.

    ERIC Educational Resources Information Center

    American Vocational Association, Washington, DC. Agricultural Education Div.

    To provide teachers of vocational agriculture, agricultural supervisors, and agricultural teacher educators with information on current curriculum materials available to them, this annotated bibliography presents 207 references classified according to the AGDEX filing system. Topics are: (1) Field Crops, (2) Horticulture, (3) Forestry, (4) Animal…

  12. AGDEX: A System for Classifying, Indexing, and Filing Agricultural Publications. Revised Edition.

    ERIC Educational Resources Information Center

    Miller, Howard L.; Woodin, Ralph J.

    This document provides an introduction to and instructions for the use of AGDEX, a comprehensive numeric filing system to classify and organize a wide variety of agricultural publications. The index is subdivided and color coded according to the following categories: (1) field crops; (2) horticulture; (3) forestry; (4) animal science; (5) soils;…

  13. NURSERY WORKER, TEACHERS COPY.

    ERIC Educational Resources Information Center

    FITTS, JAMES; JOHNSON, JOHNNY

    THE PURPOSE OF THIS GUIDE IS TO ASSIST IN THE PREPARATION OF VOCATIONAL AGRICULTURE COOPERATIVE EDUCATION STUDENTS OVER 16 YEARS OF AGE AS NURSERY WORKERS. IT WAS DEVELOPED BY A COMMITTEE OF VOCATIONAL AGRICULTURE TEACHERS WITH ASSISTANCE FROM SUBJECT MATTER SPECIALISTS. UNITS ARE (1) INTRODUCTION TO HORTICULTURE, (2) CONSTRUCTING, MAINTAINING,…

  14. Planting, Growing, Caring.

    ERIC Educational Resources Information Center

    Carrick, James

    Six units of instruction are provided in this manual designed for deaf students enrolled in an ornamental horticulture program. Unit 1 contains eight lessons (pictures and names) on tool and equipment identification (e.g., cutting and pruning tools, lawn and garden equipment, and power equipment). Unit 2 provides ten lessons on the care of tools…

  15. 29 CFR 780.115 - Forest products.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Forest products. 780.115 Section 780.115 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR STATEMENTS OF GENERAL POLICY OR... Agricultural Or Horticultural Commodities § 780.115 Forest products. Trees grown in forests and the...

  16. 29 CFR 780.159 - Forest products.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Forest products. 780.159 Section 780.159 Labor Regulations... Other Unlisted Practices Which May Be within Section 3(f) § 780.159 Forest products. Trees grown in forests and the lumber derived therefrom are not agricultural or horticultural commodities, for...

  17. 29 CFR 780.159 - Forest products.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Forest products. 780.159 Section 780.159 Labor Regulations... Other Unlisted Practices Which May Be within Section 3(f) § 780.159 Forest products. Trees grown in forests and the lumber derived therefrom are not agricultural or horticultural commodities, for...

  18. 29 CFR 780.159 - Forest products.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Forest products. 780.159 Section 780.159 Labor Regulations... Other Unlisted Practices Which May Be within Section 3(f) § 780.159 Forest products. Trees grown in forests and the lumber derived therefrom are not agricultural or horticultural commodities, for...

  19. 29 CFR 780.115 - Forest products.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Forest products. 780.115 Section 780.115 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR STATEMENTS OF GENERAL POLICY OR... Agricultural Or Horticultural Commodities § 780.115 Forest products. Trees grown in forests and the...

  20. 29 CFR 780.115 - Forest products.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Forest products. 780.115 Section 780.115 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR STATEMENTS OF GENERAL POLICY OR... Agricultural Or Horticultural Commodities § 780.115 Forest products. Trees grown in forests and the...

  1. 29 CFR 780.115 - Forest products.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Forest products. 780.115 Section 780.115 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR STATEMENTS OF GENERAL POLICY OR... Agricultural Or Horticultural Commodities § 780.115 Forest products. Trees grown in forests and the...

  2. 29 CFR 780.115 - Forest products.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Forest products. 780.115 Section 780.115 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR STATEMENTS OF GENERAL POLICY OR... Agricultural Or Horticultural Commodities § 780.115 Forest products. Trees grown in forests and the...

  3. 29 CFR 780.159 - Forest products.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Forest products. 780.159 Section 780.159 Labor Regulations... Other Unlisted Practices Which May Be within Section 3(f) § 780.159 Forest products. Trees grown in forests and the lumber derived therefrom are not agricultural or horticultural commodities, for...

  4. 29 CFR 780.159 - Forest products.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Forest products. 780.159 Section 780.159 Labor Regulations... Other Unlisted Practices Which May Be within Section 3(f) § 780.159 Forest products. Trees grown in forests and the lumber derived therefrom are not agricultural or horticultural commodities, for...

  5. Complete Nucleotide Sequence and Genome Organization of Calibrachoa Mottle Virus (CbMV) - a new Species in the Genus Carmovirus, Family Tombusviridae.

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Calibrachoa mottle virus (CbMV) infects Calibrachoa, an important new horticultural plant both in Europe and the United States. The virus has isometric particles of approximately 29-31nm in diameter. The most evident symptoms are leaf mottling, chlorotic blotch and interveinal yellowing. The virus i...

  6. A Reliable In Vitro Fruiting System for Armillaria Mellea for Evaluation of Agrobacterium Tumefaciens Transformation Vectors

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Armillaria mellea is a serious pathogen of horticultural and agricultural systems in Europe and North America. The lack of a reliable in vitro fruiting system has hindered research, and necessitated dependence on intermittently available wild-collected basidiospores. Here we describe a reliable, rep...

  7. Dynamics of genetic diversity of Tomato spotted wilt virus in the United States

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Among known tospoviruses, Tomato spotted wilt virus (TSWV; genus Tospovirus, family Bunyaviridae) continues to be the major viral disease affecting a wide range of agricultural and horticultural crops worldwide. Like many other RNA viruses, TSWV is known to maintain heterogeneous and divergent popul...

  8. Can essential oils be used as novel drench treatments for the eggs and juveniles of the pest snail Cornu aspersum in potted plants?

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The horticultural trade is an important pathway for the introduction and spread of invasive gastropods because potted plants are essentially portable microhabitats, which protect snails and slugs, especially buried eggs and juveniles, from desiccation and molluscicides. The identification of a drenc...

  9. Abstracts of Presentations at the 2015 APS Annual Meeting

    DOE PAGES

    Avenot, Herve F.; King, Caleb; Edwards, T. P.; Baudoin, Anton; C. X. Hong

    2015-11-01

    Here, boxwood blight is an emerging disease of great concern for the ornamental horticulture industry, historic garden managers, landscapers and homeowners. Three controlled-environment experiments were conducted to determine the effects of conidial concentration, temperature, cultivar, leaf age, and interrupted leaf wetness period on infection of boxwood leaves by Calonectria pseudonaviculata.

  10. TRACE ELEMENTS AND BENEFICIAL USE OF ORGANIC RESOURCES

    EPA Science Inventory

    This paper summarizes information on risk assessment for metals (Cd, Pb, As, Zn, Cu, Hg) in compost products used in agriculture or horticulture, and progress in research to develop and demonstrate the use of Tailor-Made Composts to remediate metal phytotoxic soils. Research has ...

  11. Mineral concentration of broccoli florets in relation to year of cultivar release

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Recent reports have proposed that breeding for yield in agronomic and horticultural crops has resulted in decreases in mineral nutrient (e.g., calcium, magnesium) concentration of the harvested part of these crops. Data used to support such claims are taken from historical food nutrient databases t...

  12. Requirements and Opportunities for Entry Workers in the Occupation of Producing and Marketing Ornamental Nursery and Greenhouse Specialists.

    ERIC Educational Resources Information Center

    Johnson, Johnny M.; Webb, Earl S.

    To determine what should be taught to persons preparing for employment in the horticultural industry, 30 nursery owners or operators chosen from five geographic areas of nursery concentration in Texas were interviewed. The specific objectives were to determine: (1) the most important competencies, (2) the influence of geographic location and size…

  13. GREENHOUSE WORKER, TEACHERS COPY.

    ERIC Educational Resources Information Center

    FITTS, JAMES; JOHNSON, JOHNNY

    DESIGNED FOR VOCATIONAL AGRICULTURE STUDENTS IN A COOPERATIVE PART-TIME TRAINING PROGRAM, THIS GUIDE WAS DEVELOPED BY TWO VOCATIONAL AGRICULTURE TEACHERS WITH INTEREST, TRAINING, AND EXPERIENCE IN HORTICULTURE AND WAS COORDINATED AND EDITED BY A SUBJECT MATTER SPECIALIST. INCLUDED ARE TEN UNITS, EACH DIVIDED INTO TOPICS. EACH TOPIC INCLUDES A…

  14. The genome of melon (Cucumis melo L.). Genome amplification in the absence of recent duplication in an old widely cultivated species

    Technology Transfer Automated Retrieval System (TEKTRAN)

    We report the genome sequence of melon (Cucumis melo L.), an important horticultural crop worldwide. We assembled 375 Mb of the double haploid line DHL92, representing 83.3 % of the estimated melon genome. We predicted 27,427 protein-coding genes, which we analyzed by reconstructing 22,218 phylogene...

  15. Rubus Iconography: Antiquity to the Renaissance

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Rubus images from late Antiquity to the Renaissance are described and assessed for botanical and horticultural information. The earliest surviving European blackberry (R. fruticosus L. sp. agg.) image is found on folio 83 in the Juliana Anicia Codex (Codex Vindobonensis) of 512 CE which contains cop...

  16. Sociological Reality: A Brief Introduction. First Edition.

    ERIC Educational Resources Information Center

    Yorburg, Betty

    This textbook describes the process of sociocultural evolution, whereby human experience in major areas of life such as societies, cultures and human relationships have become increasingly complex. Societies are classified as hunting and gathering, horticultural, agricultural, industrial, and post industrial, according to their level of cultural…

  17. Peat Processing

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Humics, Inc. already had patented their process for separating wet peat into components and processing it when they consulted NERAC regarding possible applications. The NERAC search revealed numerous uses for humic acid extracted from peat. The product improves seed germination, stimulates root development, and improves crop yields. There are also potential applications in sewage disposal and horticultural peat, etc.

  18. National Arboretum Solves Green Industry Problems with a Multi-Disciplinary Research Approach

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The ornamental horticulture or “green” industry continues to be one of the fastest growing segments of agriculture in the U.S., ranking behind only corn and soybeans in total cash receipts. The Floral and Nursery Plants Research Unit (FNPRU), of the U.S. National Arboretum, is the largest research g...

  19. Zoophthora radicans (Entomophthorales), fungal pathogen of Bagrada hilaris and Bactericera cockerelli (Hemiptera: Pentatomidae & Triozidae)in Mexico: Prevalence, bioassays, & environmental influences on conidial morphology

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The Bagrada bug, Bagrada hilaris, and the potato/tomato psyllid, Bactericera cockerelli, are key pests of horticulture in western North America. In 2014 and 2015, adult and juvenile B. hilaris and B. cockerelli killed by fungi in the genus Zoophthora were detected at separate localities near Saltill...

  20. Minority Time Pursuits in Scotland

    ERIC Educational Resources Information Center

    Reid, Jean

    1971-01-01

    Article describes how several Scottish schools are implementing the Ruthven Report's recommendation that all pupils spend a quarter of their time on non-examinable subjects. Some schools schedule weekly hobbies afternoons". A Glasgow horticultural school offers courses in gardening, floral art, jewelry making and silver work to adults and…