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    • Journal of Range Management, Volume 26 (1973)
    • Journal of Range Management, Volume 25, Number 3 (May 1973)
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    Efficiency of Water Use and Associated Characteristics of Lehmann Lovegrass

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    Author
    Wright, L. N.
    Dobrenz, A. K.
    Issue Date
    1973-05-01
    
    Metadata
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    Citation
    Wright, L. N., & Dobrenz, A. K. (1973). Efficiency of water use and associated characteristics of Lehmann lovegrass. Journal of Range Management, 26(3), 210-212.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/647263
    DOI
    10.2307/3896694
    Additional Links
    https://rangelands.org/
    Abstract
    Efficiency of water use of five lines and the cultivar 'A-68' of Lehmann lovegrass (Eragrostic lehmanniana Nees) was related to seedling drought tolerance and to physiological and morphological plant characteristics. Components of efficiency of water use (transpired water and dry matter produced) and the values of water-use efficiency (measured as the number of units of transpired water per unit of dry matter produced) varied among lines. Line L-38 was most efficient in water use (water-use efficiency value of 135), had the highest percentage of survival, 32.4%, (seedling drouth tolerance) and produced the most dry matter (8.31g). The ratios of maximum recorder deflection of petroleum ether extract and the total area of optical deflection of petroleum ether extract to dry weight of leaves were variable among lines and significantly associated with efficiency of water use and seedling drouth tolerance. High deflection values were associated with high efficiency of water use and high percentage of survival. Stomate density was different among lines and was higher on the upper surface than on the lower surface of the leaf blade. Stomate density was not significantly associated with efficiency of water or seedling drouth tolerance.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3896694
    Scopus Count
    Collections
    Journal of Range Management, Volume 25, Number 3 (May 1973)

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