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Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/33/5/article-p849.xml
    Last checked: 11/13/2019
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Author(s):Watkinson, Jonathon I.; Pill, Wallace G.
Author Affiliation:Department of Plant and Soil Sciences, Deleware Agricultural Experiment Station, University of Deleware, Newark, DE 19717-1303
Title:Gibberellic acid and presowing chilling increase seed germination of indiangrass [Sorghastrum nutans (L.) Nash.]
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 33, No. 5, August 1998, p. 849-851.
# of Pages:3
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Gibberellic acid; Sorghastrum nutans; Seed germination; Sodium hypochlorite; Seed treatment; Chilling; Age; Seedling emergence; Dry weight
Abstract/Contents:"Following dry storage for 5 or 11 months (new and old seeds, respectively) at 5°C, less than 10% of the seeds of Indiangrass germinated as determined by a standard germination test. We attempted to increase germination by subjecting seeds to dormancy-breaking treatments, including sodium hypochlorite soak (5.25% v/v NaOCl; 20 or 60 min), prechilling (5°C for 2 weeks), gibberellic acid during germination (GA₃, 1000mg·L⁻¹), and combination thereof. Treatment with NaOCl increased the germination of non-prechilled seeds only when they were germinated in GA₃; a 60-min soak in NaOCl increased germination to 53% and 65% in new and old seeds, respectively. Prechilling increased germination to 65% and 47% in new and old seeds, respectively. Germination of new, prechilled seeds was increased further to 86% by either a 20-min soak in NaOCl or germination in GA₃. Germination of old, prechilled seeds was not promoted further by treatment with NaOCl, but was increased to 67% by germination in GA₃. Since NaOCl treatment alone failed to promote germination, we examined the effects on seedling emergence and growth of providing GA₃ at 1000 mg·L⁻¹ during the 2-week prechilling period. While prechilling alone increased emergence to and average 34% for new and old seeds, prechilling with GA₃ increased emergence to 75% and 50% for new and old seeds, respectively. These treatments did not influence seedling shoot dry mass. Seed exposure to GA₃ during rather than after prechilling was more effective in promoting Indiangrass establishment."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watkinson, J. I., and W. G. Pill. 1998. Gibberellic acid and presowing chilling increase seed germination of indiangrass [Sorghastrum nutans (L.) Nash.]. HortScience. 33(5):p. 849-851.
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DOI: 10.21273/HORTSCI.33.5.849
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    Last checked: 11/13/2019
    Requires: PDF Reader
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MSU catalog number: SB 1 .H64
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