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    • Journal of Range Management, Volume 46 (1993)
    • Journal of Range Management, Volume 46, Number 4 (July 1993)
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    Field stratification of antelope bitterbrush seeds

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    Author
    Young, J. A.
    Wight, J. R.
    Mowbray, J. E.
    Issue Date
    1993-07-01
    Keywords
    dormancy breaking
    soil temperature
    microenvironments
    Purshia tridentata
    rain
    Idaho
    seed germination
    Nevada
    
    Metadata
    Show full item record
    Citation
    Young, J. A., Wight, J. R., & Mowbray, J. E. (1993). Field stratification of antelope bitterbrush seeds. Journal of Range Management, 46(4), 325-330.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644562
    DOI
    10.2307/4002467
    Additional Links
    https://rangelands.org/
    Abstract
    The germination ecology of antelope bitterbrush [Purshia tridentata (Pursh) Nutt.] seed has probably been investigated more than any other range shrub. Seeds of this valuable browse species are known to require moist prechilling before they will germinate. Our purpose was to investigate the nature of this dormancy breaking by placing packages (2 X 2-mm mesh screen) of seeds on the surface and buried in the seedbed at several locations in Idaho and Nevada and to recover the seeds monthly through the winter. The seeds were categorized based on their being: (a) capable of germinating; (b) dormant; or (c) dead at each recovery. The seedbeds of the 2 sites in Nevada, during 2 years of drought, were not sufficiently wet to bring large amounts of the antelope bitterbrush seeds out of dormancy. The seeds did not rot in the field, and being protected from predation, they remained dormant in the seedbed. The highest elevation site in Idaho had as high as 80% of the seeds lose dormancy. If seedbed microenvironmental conditions were satisfactory, the inherent seed dormancy was lost by midwinter. Snow cover, as it influences seedbed moisture and temperatures, apparently is an important factor in the prechilling of antelope bitterbrush seeds.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002467
    Scopus Count
    Collections
    Journal of Range Management, Volume 46, Number 4 (July 1993)

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