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    • Journal of Range Management, Volume 41 (1988)
    • Journal of Range Management, Volume 41, Number 3 (May 1988)
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    Effects of temperature, water potential, and sodium chloride on Indiangrass germination

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    Author
    Fulbright, T. E.
    Issue Date
    1988-05-01
    Keywords
    moisture characteristic
    varieties
    regeneration
    sodium chloride
    soil water potential
    seed dispersal
    soil salinity
    efficiency
    germination
    Sorghastrum nutans
    Texas
    temperature
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    Citation
    Fulbright, T. E. (1988). Effects of temperature, water potential, and sodium chloride on Indiangrass germination. Journal of Range Management, 41(3), 207-210.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/645169
    DOI
    10.2307/3899168
    Additional Links
    https://rangelands.org/
    Abstract
    Indiangrass [Sorghastrum nutans (L.) Nash] is widely used in range seeding. Objectives of this study were to determine the effects of temperature, water potential, and sodium chloride on germination of 'Lometa', 'Cheyenne', 'Llano', 'Oto', and 'Tejas' Indiangrass. Seeds were germinated at 6 alternating temperatures ranging from 5-15 to 30-40 degrees C (12 hours-12 hours). Lometa, Cheyenne, and Tejas seeds were germinated in polyethylene glycol (mol. wt. = 8,000) solutions mixed to approximate water potentials of 0, -0.4, -0.8, -1.2, and -1.6 MPa and in 0, 0.06, 0.12, 0.18, and 0.24 mol liter-1 sodium chloride solutions. Optimum temperatures for percent germination were 10-20 to 25-35, 10-20 to 20-30, and 15-25 and 20-30 degrees C for Cheyenne and Tejas, Llano and Oto, and Lometa seeds, respectively. Percent germination of Cheyenne and Lometa seeds was reduced at water potentials of -0.8 MPa and lower, while Tejas seeds exhibited lower percent germination than controls at -1.2 and -1.8 MPa. Percent germination of Cheyenne and Lometa seeds was reduced by sodium chloride concentrations of 0.12 mol liter-1 and greater. Germination of Tejas seeds was reduced at 0.18 and 0.24 mol liter-1. Indiangrass varieties appear to germinate within a similar range of temperatures but vary in germination response to low water potentials.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/3899168
    Scopus Count
    Collections
    Journal of Range Management, Volume 41, Number 3 (May 1988)

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