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    • Journal of Range Management, Volume 46 (1993)
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    Dependence of 3 Nebraska Sandhills warm-season grasses on vesicular-arbuscular mycorrhizae

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    Author
    Brejda, J. J.
    Yocom, D. H.
    Moser, L. E.
    Waller, S. S.
    Issue Date
    1993-01-01
    Keywords
    Glomus deserticola
    plant nutrition
    recovery
    vesicular arbuscular mycorrhizae
    revegetation plants
    Calamovilfa longifolia
    symbiosis
    nutrient uptake
    seedlings
    use efficiency
    Nebraska
    Panicum virgatum
    Andropogon gerardii
    phosphorus
    tillering
    growth rate
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    Citation
    Brejda, J. J., Yocom, D. H., Moser, L. E., & Waller, S. S. (1993). Dependence of 3 Nebraska Sandhills warm-season grasses on vesicular-arbuscular mycorrhizae. Journal of Range Management, 46(1), 14-20.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644533
    DOI
    10.2307/4002441
    Additional Links
    https://rangelands.org/
    Abstract
    Vesicular-arbuscular mycorrhizae (VAM) are rare or absent in actively eroding soils of the Sandhills. The objective of this study was to determine if 3 major Sandhills warm-season grasses used in reseeding eroded Sandhills sites are highly mycorrhizal dependent, and evaluate the response of VAM at different phosphorus (P) levels. In 2 greenhouse experiments, sand bluestem [Andropogon gerardii var. paucipilus (Nash) Fern.], switchgrass (Panicum virgatum L.), and prairie sandreed [Calamovilfa longifolia (Hook) Scribn.] were grown in steam-sterilized sand in pots and inoculated with either indigenous Sandhills VAM, Glomus deserticola, or noninoculated. In the second experiment, VAM inoculated and control plants were treated with 5 P levels ranging from 5.4 to 27.0 mg P pot-1. Increasing levels of P fertilizer caused an initial increase, then dramatic decrease, in percentage colonization by Glomus deserticola but bad no effect on percentage colonization by indigenous Sandhills VAM. Mycorrhizal inoculated plants had a greater number of tillers, greater shoot weight, root weight, tissue P concentration and percentage P recovered, and a lower root/shoot ratio and P efficiency than noninoculated plants. Noninoculated sand bluestem had significantly lower shoot P concentration but greater P efficiency over all P levels thin any other grass-VAM treatment combination. Phosphorus fertilizer and VAM effects were often complementary at P levels up to 16.2 to 21.6 mg P pot-1, with no change or a decrease in plant responses at higher P levels. These 3 major Sandhills warm-season grasses were highly mycorrhizal dependent. Successful reestablishment of these on eroded sites in the Sandhills may be greatly improved if soil reinoculation with VAM occurred prior to revegetation.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002441
    Scopus Count
    Collections
    Journal of Range Management, Volume 46, Number 1 (January 1993)

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