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    • Journal of Range Management, Volume 46 (1993)
    • Journal of Range Management, Volume 46, Number 6 (November 1993)
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    Seedling growth of 2 Leucaena species

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    Author
    Dovel, R. L.
    Vietor, D. M.
    Hussey, M. A.
    Issue Date
    1993-11-01
    Keywords
    Leucaena
    seedling growth
    ambient temperature
    inhibition
    
    Metadata
    Show full item record
    Citation
    Dovel, R. L., Vietor, D. M., & Hussey, M. A. (1993). Seedling growth of 2 Leucaena species. Journal of Range Management, 46(6), 516-519.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644627
    DOI
    10.2307/4002863
    Additional Links
    https://rangelands.org/
    Abstract
    Seed of Leucaena leucocephala (Lam) Dewit variety K-8 and L. retusa Gray variety Yellow Puff were germinated in growth chambers maintained at 10, 25,30, and 35 degrees C. A fifth treatment of 30 degrees C for 13 hours followed by 25 degrees C for 11 hours was also included. Seed were monitored every 4 days for 16 days for percent germination, testa weight, cotyledon weight, hypocotyl weight and length, and radicle weight and length. Yellow Puff exhibited higher maximum germination and a higher germination rate (expressed as percent of germinable seed germinated 4 days after imbibition) than K-8. There was no temperature effect on maximum germination of K-8, while the 35 degrees C treatment substantially reduced germination in Yellow Puff. Despite faster germination, Yellow Puff seedlings elongated slower compared to K-8. Radicle/hypocotyl ratios were similar for both species across all temperatures. Due to heavier seed weight of K-8 than Yellow Puff, testa and cotyledon weights were also heavier. Rate of nutrient reserve mobilization from the tests and cotyledon increased with increasing temperature in K-8, while rate of mobilization of nutrient reserves in Yellow Puff seed declined at temperatures above 30 degrees C.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002863
    Scopus Count
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    Journal of Range Management, Volume 46, Number 6 (November 1993)

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