Full TGIF Record # 44606
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DOI:10.21273/HORTSCI.32.7.1222
Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/32/7/article-p1222.xml
    Last checked: 11/13/2019
    Requires: PDF Reader
Publication Type:
i
Refereed
Author(s):Haynes, Janine G.; Pill, Wallace G.; Evans, Thomas A.
Author Affiliation:Department of Plant and Soil Sciences, Delaware Agricultural Experiment Station, University of Delaware, Newark, DE 19717-1303
Title:Seed treatments improve the germination and seedling emergence of switchgrass (Panicum virgatum L.)
Section:Reports: Seed technology
Other records with the "Reports: Seed technology" Section
Source:HortScience. Vol. 32, No. 7, December 1997, p. 1222-1226.
Publishing Information:Alexandria, VA: American Society for Horticultural Science
# of Pages:5
Keywords:TIC Keywords: Panicum virgatum; Seed treatment; Seed germination; Seedling emergence; Sodium hypochlorite; Chilling; Scarification (seed); Storage; Seed weight; Dry weight; Age
Abstract/Contents:"Switchgrass (Panicum virgatum L.) is one of the perennial, native, warm-season grasses recommended as a component of wildflower meadows. Seed treatments to alleviate low seed vigor and seed dormancy of switchgrass would enhance establishment of either plug transplants or seedlings after direct sowing into the meadow. 'Heavy' seeds (45.5 mg/50 seeds) of open-pollinated switchgrass stored under cool and dry conditions (average 13°C, 30% relative humidity) for 24 months had higher germination percentage than 'light' seeds (26.0 mg per 50 seeds). In factorial combination, the heavy seeds were subjected to acid scarification (8 M H₂SO₄ for 5 min), sodium hypochlorite treatment (5.25% NaOCl for 15 min), and moist chilling (prechilling in 0.2% KNO₃ for 14 days). Acid scarification followed by NaOCl treatment additively increased germination, a response that was associated with marked corrosion of the lemma margin in the distal region of the caryopsis, as observed by scanning electron microscopy. Prechilling the seeds following acid scarification and NaOCl further increased germination. All three treatments combined (acid scarification, NaOCl, and prechilling) almost doubled the final emergence and greatly increased seedling shoot dry mass in both a warm and cool postsowing environment. However, the effectiveness of these seed treatments was lost after 32 months of dry storage."
Language:English
References:22
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Haynes, J. G., W. G. Pill, and T. A. Evans. 1997. Seed treatments improve the germination and seedling emergence of switchgrass (Panicum virgatum L.). HortScience. 32(7):p. 1222-1226.
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DOI: 10.21273/HORTSCI.32.7.1222
Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/32/7/article-p1222.xml
    Last checked: 11/13/2019
    Requires: PDF Reader
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MSU catalog number: SB 1 .H64
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