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    • Journal of Range Management, Volume 43 (1990)
    • Journal of Range Management, Volume 43, Number 4 (July 1990)
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    Silicon uptake and distribution in agropyron smithii as related to grazing history and defoliation

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    Author
    Cid, M. S.
    Detling, J. K.
    Whicker, A. D.
    Brizuela, M. A.
    Issue Date
    1990-07-01
    Keywords
    nutrient removal by plants
    silicon
    rhizomes
    roots
    shoots
    South Dakota
    Pascopyrum smithii
    biomass accumulation
    defoliation
    grazing
    
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    Citation
    Cid, M. S., Detling, J. K., Whicker, A. D., & Brizuela, M. A. (1990). Silicon uptake and distribution in Agropyron smithii as related to grazing history and defoliation. Journal of Range Management, 43(4), 344-346.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644927
    DOI
    10.2307/3898929
    Additional Links
    https://rangelands.org/
    Abstract
    A controlled environment experiment was performed on plants from 2 Agropyron smithii Rydb. (western wheatgass) populations to determine how defoliation at 1-week intervals and graxing history affected total silicon accumulation in shoots, and how Si was distributed within the plant. Plants were collected from a heavily grazed, 10-year-old prairie dog colony and an ungrazed, 40-year-old exciosure at Wind Cave National Park, South Dakota. After 18 weeks, the total amount of Si accumulated in shoots was similar in plants from both populations, regardless of whether or not the plants were clipped. However, the Si concentration in shoots was greater in nondefoliated than defoliated plants of both populations because of Si dilution resulting from greater shoot production in defoliated pIants. In both populations, roots and leaf blades had the highest Si concentrations, rhizomes had the lowest concentrations, and sheaths, crowns, and belowground stems had intermediate concentration.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3898929
    Scopus Count
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    Journal of Range Management, Volume 43, Number 4 (July 1990)

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