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    • Journal of Range Management, Volume 57, Number 6 (November 2004)
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    Can Solid Matrix Priming With GA3 Break Seed Dormancy in Eastern Gamagrass?

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    Author
    Rogis, C.
    Gibson, L. R.
    Knapp, A. D.
    Horton, R.
    Issue Date
    2004-11-01
    Keywords
    seed quality
    seed enhancement
    seed dormancy
    germination
    
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    Citation
    Rogis, C., Gibson, L. R., Knapp, A. D., & Horton, R. (2004). Can solid matrix priming with GA3 break seed dormancy in eastern gamagrass?. Journal of Range Management, 57(6), 656-660.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643222
    DOI
    10.2111/1551-5028(2004)057[0656:CSMPWG]2.0.CO;2
    10.2307/4004024
    10.2458/azu_jrm_v57i6_rogis
    Additional Links
    https://rangelands.org/
    Abstract
    Development of methods for breaking seed dormancy in eastern gamagrass (Tripsacum dactyloides, L.) could increase its use. Solid matrix priming, the controlled hydration of seed in a system of solid carrier and water, has been used with some success to enhance germination in warm-season grasses. gibberellic acid (ga3), a known promoter of eastern gamagrass germination, can be added to solid matrix priming systems. In this study, systems were evaluated for conditioning eastern gamagrass seeds using the solid carriers Agro-Lig, MicroCel E, and Vermiculite #5. GA3 was added in 0.01 M concentration solutions to systems with water potentials of -0.4 and -0.6 MPa in Agro-Lig and -0.2 and -0.4 in MicroCel E and Vermiculite #5 and compared with systems with deionized water. Priming seed with GA3 increased germination to 18% compared with 13% without GA3. MicroCel E and Vermiculite #5 were suitable materials for controlled hydration of eastern gamagrass seed. Germination was only 11% in Agro-Lig compared with 16%-19% for MicroCel E and Vermiculite #5. Priming with GA3 does not appear to be as successful at breaking seed dormancy as cold, wet stratification.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2111/1551-5028(2004)057[0656:CSMPWG]2.0.CO;2
    Scopus Count
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    Journal of Range Management, Volume 57, Number 6 (November 2004)

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