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    • Journal of Range Management, Volume 37 (1984)
    • Journal of Range Management, Volume 37, Number 5 (September 1984)
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    Effects of Temporary Dehydration on Growth of Green Needlegrass (Stipa viridula Trin.) Seedlings

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    Author
    Fulbright, T. E.
    Wilson, A. M.
    Redente, E. F.
    Issue Date
    1984-09-01
    Keywords
    soil water potential
    Nassella viridula
    seedling emergence
    drought tolerance
    
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    Citation
    Fulbright, T. E., Wilson, A. M., & Redente, E. F. (1984). Effects of temporary dehydration on growth of green needlegrass (Stipa viridula Trin.) seedlings. Journal of Range Management, 37(5), 462-464.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/645637
    DOI
    10.2307/3899637
    Additional Links
    https://rangelands.org/
    Abstract
    Green needlegrass (Stipa viridula Trin.) has been variously rated as "extremely" to "fairly" drought tolerant. This study was conducted to determine the capacity of green needlegrass seedlings for emergence and root growth following temporary dehydration. Germinating seeds were exposed to dehydration treatments of 0, -4, -10, -22, and -37 megapascals (MPa) and then planted in soil-filled pots for a 10-day growth performance test. Exposure of germinating seeds to temporary dehydration treatments of -10 MPa and lower reduced subsequent seedling emergence. When the seminal primary root of germinating seeds was excised or injured by dehydration, seedlings developed up to 3 seminal lateral roots. No additional seminal roots were developed if the seminal primary root was undamaged. Germinating seeds of green needlegrass have relatively low tolerance to dehydration possibly as a result of a low latent potential for development of seminal lateral roots and low tolerance of the embryo and developing tissues to dehydration. Sites to be seeded and planting dates should be selected so as to insure adequate soil moisture for seedling development.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3899637
    Scopus Count
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    Journal of Range Management, Volume 37, Number 5 (September 1984)

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