• Login
    View Item 
    •   Home
    • Journals and Magazines
    • Society for Range Management Journal Archives
    • Rangeland Ecology & Management / Journal of Range Management
    • Journal of Range Management, Volume 54 (2001)
    • Journal of Range Management, Volume 54, Number 4 (July 2001)
    • View Item
    •   Home
    • Journals and Magazines
    • Society for Range Management Journal Archives
    • Rangeland Ecology & Management / Journal of Range Management
    • Journal of Range Management, Volume 54 (2001)
    • Journal of Range Management, Volume 54, Number 4 (July 2001)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Structural anti-quality characteristics of range and pasture plants

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    9639-9520-1-PB.pdf
    Size:
    54.48Kb
    Format:
    PDF
    Download
    Author
    Laca, E. A.
    Shipley, L. A.
    Reid, E. D.
    Issue Date
    2001-07-01
    Keywords
    shear strength
    animal injuries
    wool
    performance
    tensile strength
    foraging
    habitats
    plant morphology
    duration
    plant anatomy
    pastures
    digestibility
    sustainability
    botanical composition
    quality
    pasture plants
    literature reviews
    grazing
    feed intake
    bite size
    chewing
    canopy structure
    intake rate
    physical plant defenses
    spines
    Show allShow less
    
    Metadata
    Show full item record
    Citation
    Laca, E. A., Shipley, L. A., & Reid, E. D. (2001). Structural anti-quality characteristics of range and pasture plants. Journal of Range Management, 54(4), 413-419.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643889
    DOI
    10.2307/4003112
    10.2458/azu_jrm_v54i4_laca
    Additional Links
    https://rangelands.org/
    Abstract
    Structural anti-quality characteristics are physical plant traits that reduce the performance and productivity of herbivores and quality of their agricultural products. Most structural anti-quality characteristics of plants affect the rate at which herbivores gather and ingest forages, reducing the total amount of food obtained or increasing the time necessary to obtain food. Structural anti-quality can substantially influence searching time (e.g., plant crypticity, distribution), cropping time (e.g., plant fibrousness, tensile and shear strength), and bite size (e.g., plant canopy structure, spinescence). Plant structural characteristics can also reduce digestion (e.g., silica), cause injury (e.g., spines, awns, burrs, calluses), or reduce the quality of animal products, such as wool (e.g., propagules). The effects of structural antiquality characteristics depend on the morphology of the herbivore, especially its size, the morphology of the focal plant, and their context within the habitat. Integrated grazing management plans should consider options to reduce the negative effects of structural anti-quality. Carefully selecting appropriate livestock species with previous experience, and the appropriate season of grazing can minimize anti-quality on rangelands. Because structural anti-quality may actually promote sustainability of grazing systems by preventing severe defoliation, or by providing refuges for highly desirable forages, it may not be desirable to completely counteract their effects.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003112
    Scopus Count
    Collections
    Journal of Range Management, Volume 54, Number 4 (July 2001)

    entitlement

     

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Sand Dune Rehabilitation in Thal, Pakistan

      Anwar Khan, C. M. (Society for Range Management, 1968-09-01)
      Rangeland improvement in Thal, Pakistan through reseeding was started in 1962. These operations were impressively successful on heavy soil valley flats but loose sand dunes defied all efforts of sowings. These dunes have been successfully rehabilitated through planting tufts of Cenchrus ciliaris (dhaman) and Elyonurus hirsutus (karera). On better sites, grasses seeded in flats are spreading naturally to the dunes. Under "Thal Technique of Planting Trees" more than 100,000 fodder trees have been transplanted successfully since July 1964 in earthen tubes (baked) without watering. Experiments to determine effects of exposure and different competition levels on height growth of Zizyphus jujuba (ber) are presented. Southeastern (leeward) exposures have been found to be significantly (highly) better than tops and northwesterly (windward) exposures. The minimum plant competition level gave significantly (highly) more height growth than the other three levels./El mejoramiento de los pastizales en Thal, Pakistán por medio de la siembra, fue iniciado en 1962. Se obtuvo un éxito impresionante en las siembras hechas en valles planos con suelos pesados, pero en las dunas de arena suelta todos los esfuerzos por sembrar resultaron fallidos. Sin embargo, dichas dunas han sido rehabilitadas exitosamente por medio del transplante de macollos de Cenchrus ciliaris y Elyonurus hirsutus. Los zacates sembrados en los valles están invadiendo en forma natural las dunas. Los pastizales de verano en Thal tienen zacates verdes disponibles por seis meses únicamente; a excepción de Elysine flagellitera en general durante su dormancia dichos zacates no mantienen un alto valor nutritivo. Tradicionalmente durante el invierno la principal fuente de alimento es el ramoneo. Los árboles de ramoneo se presentan como fuente esencial de abastecimiento de forraje durante todo el año, su aumento estable por medio de técnicas de plantación es entonces un problema mayor en el área. Una técnica conocida como "técnica Thal para plantar árboles" ha probado tener mucho éxito en ciertas especies de árboles bajo situaciones específicas. La técnica incluye la construcción de tubos de arcilla cocidos, con una longitud de 30 cm (1 pie) y con un diámetro de 11.25 cm (4.5 pulgadas). Las especies deseadas son plantadas en los tubos en invernaderos para que posteriormente cuando tengan sus raíces y follaje adecuadamente desarrollados sean transplantados en el campo. El propósito del tubo es proporcionar a la planta un medio en el cual pueda sobrevivir hasta que pueda tomar ventaja de la humedad existente en la arena de las dunas, siendo entonces el tiempo de plantación el factor mas determinante. Se encontró que el transplante no se deberá intentar hasta que haya humedad adecuada en 30 cm (1 pie) en el estrato superficial del suelo. Las plantaciones de Prosopis spicigera han sido las de mas éxito, otras especies fueron susceptibles a la destrucción por insectos. Las plantaciones de exposición sureste fueron significativamente mejores que los realizados en exposición noroeste y en la cima de las dunas. Una mínima competencia con las plantas dio un crecimiento en altura significativamente mayor.
    • Thumbnail

      Revegetation Priorities

      Booth, D. Terrance; Vogel, Kenneth P. (Society for Range Management, 2006-10-01)
    • Thumbnail

      Canadian bluejoint response to heavy grazing

      Collins, W. B.; Becker, E. F.; Collins, A. B. (Society for Range Management, 2001-05-01)
      A disclimax stand of Canadian bluejoint (Calamagrostis canadensis (Michx.) Beauv.) was heavily grazed by cattle and horses for 4 years to weaken the grass's competition with hardwoods important as browse and cover to wildlife. Stocking at 0.084 ha AUM(-1) resulted in uniform utilization of bluejoint and maintenance of early phenology through the growing season. Etiolated bluejoint declined about 90%, but grass production increased 10 to 15%, as fireweed (Epilobium angustifolium L.), a principal herbaceous component of the stand, decreased in response to trampling. Rhizomes of heavily grazed bluejoint had lower total nonstructural carbohydrates (TNC) (p = 0.0127), lower weight (g cm(-1) length) (p = 0.05), and reduced biomass (g cm(-3) of soil) (p = 0.05). Shoots of grazed bluejoint maintained higher nitrogen (p = 0.0001) and higher digestibility (IVDMD) (p = 0.0017) than bluejoint that was never grazed. This enabled heavily grazed bluejoint to retain good forage quality through the entire growing season, as opposed to ungrazed bluejoint, which became poor forage at the time of flowering during early July. Following one season of rest, rhizome TNC, shoot nitrogen, and IVDMD returned to levels of never grazed bluejoint. Seedhead production, seed production, seed weights, and seed viability of rested bluejoint were about the same as in ungrazed stands. On wet sites, heavy grazing does not adequately reduce the vigor of this grass.
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.