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    • Journal of Range Management, Volume 41 (1988)
    • Journal of Range Management, Volume 41, Number 4 (July 1988)
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    Vigor of needleandthread and blue grama after short duration grazing

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    Author
    Reece, P. E.
    Bode, R. P.
    Waller, S. S.
    Issue Date
    1988-07-01
    Keywords
    energy content
    Hesperostipa comata
    etiolation
    carbohydrates
    Nebraska
    vigor
    growth
    Bouteloua gracilis
    tillering
    grazing
    
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    Citation
    Reece, P. E., Bode, R. P., & Waller, S. S. (1988). Vigor of needleandthread and blue grama after short duration grazing. Journal of Range Management, 41(4), 287-291.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/645264
    DOI
    10.2307/3899380
    Additional Links
    https://rangelands.org/
    Abstract
    Grazing treatments were applied to pastures in western Nebraska from 1980 through 1983 to examine the influence of short duration grazing (SDG) on plant vigor. The 3 treatments were: (1) 4 years of SDG, (2) 3 years of SDG followed by 1 year of rest, and (3) 4 years of rest. Total nonstructural carbohydrate (TNC) concentrations of stem bases, mean tiller weight, and tiller number/plant of etiolated growth, and paired differences in spring growth between covered and uncovered plants were used to evaluate vigor of needleandthread (Stipa comata Trin. & Rupr.) and blue grama [Bouteloua gracilis (HBK) Lag. ex Griffiths]. Two 7-pasture, 1-herd SDG systems were used. Length of use and deferment periods, stocking density, stocking rate, and sequence of pasture use were constant throughout the study. Grazing treatments reduced the vigor of both study species, but the vigor of blue grama was more sensitive to treatments than needleandthread. Levels of TNC in needleandthread were not affected by grazing treatments. Concentrations of TNC in blue grama recovered to levels of ungrazed plants after 1 year of rest in some but not all pastures. Grazing increased the number of tillers/plant, but reduced total organic reserves of both species as measured by etiolated growth. Assimilates produced in early spring growth appeared to be more important for tiller initiation in plants that had been grazed than in ungrazed plants.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3899380
    Scopus Count
    Collections
    Journal of Range Management, Volume 41, Number 4 (July 1988)

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