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    • Journal of Range Management, Volume 48 (1995)
    • Journal of Range Management, Volume 48, Number 5 (September 1995)
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    Seed size distribution, germination, and emergence of 6 switchgrass cultivars

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    Author
    Aiken, G. E.
    Springer, T. L.
    Issue Date
    1995-09-01
    Keywords
    sand
    seed size
    coleoptiles
    silt loam soils
    emergence
    photoperiod
    seed weight
    duration
    cultivars
    length
    Panicum virgatum
    seed germination
    soil texture
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    Citation
    Aiken, G. E., & Springer, T. L. (1995). Seed size distribution, germination, and emergence of 6 switchgrass cultivars. Journal of Range Management, 48(5), 455-458.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644319
    DOI
    10.2307/4002252
    Additional Links
    https://rangelands.org/
    Abstract
    Switchgrass (Panicum virgatum L.) has potential as a forage and biomass crop, but difficult establishment has limited its use. Germination and emergence were studied for 6 cultivars of switchgrass ('Alamo', 'Blackwell', 'Cave-in-Rock', 'Kanlow', 'Pathfinder', and 'Trailblazer'). Germination studies were conducted to determine the effect of light on germination and coleoptile length, and to determine the effect of seed size (40, 50, 60, 70, and 80 degrees air valve settings for a South Dakota seed blower) on germination. A greenhouse study was also conducted to examine the effect of seed size, planting depth, (5, 10, and 20 mm), and soil type (sand and 2 silt loams) on emergence. Germination of unsized seed increased linearly as duration in the germination chamber increased from 7 to 21 days for all cultivars. Although presence of light did not affect germination, coleoptile length under continuous darkness averaged 4.1 cm and was greater than the 1.0 cm measured for those with daily light exposure of 16 hours. Both germination and emergence increased nonlinearly as seed size increased. For both silt-loam soils, emergence was low and not affected by planting depth. A nonlinear decline in emergence with increased planting depth was detected in sand 7 days after planting, but not after 14 and 21 days. Results of the study indicate that seed size and soil texture had a greater effect on emergence than did planting depth down to a depth of 20 mm.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002252
    Scopus Count
    Collections
    Journal of Range Management, Volume 48, Number 5 (September 1995)

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