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| DOI: | 10.21273/HORTSCI.33.5.849 |
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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
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Watkinson, Jonathon I.;
Pill, Wallace G. |
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| Author Affiliation: | Department of Plant and Soil Sciences, Deleware Agricultural Experiment Station, University of Deleware, Newark, DE 19717-1303 |
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| Title: | Gibberellic acid and presowing chilling increase seed germination of indiangrass [Sorghastrum nutans (L.) Nash.] |
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| Section: | Turf management
Other records with the "Turf management" Section
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| Source: | HortScience. Vol. 33, No. 5, August 1998, p. 849-851. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 3 |
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| Keywords: | TIC Keywords: Gibberellic acid; Sorghastrum nutans; Seed germination; Sodium hypochlorite; Seed treatment; Chilling; Age; Seedling emergence; Dry weight
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| Abstract/Contents: | "Following dry storage for 5 or 11 months (new and old seeds, respectively) at 5Ā°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 (5Ā°C for 2 weeks), gibberellic acid during germination (GAā, 1000mgĀ·Lā»Ā¹), and combination thereof. Treatment with NaOCl increased the germination of non-prechilled seeds only when they were germinated in GAā; 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 GAā. Germination of old, prechilled seeds was not promoted further by treatment with NaOCl, but was increased to 67% by germination in GAā. Since NaOCl treatment alone failed to promote germination, we examined the effects on seedling emergence and growth of providing GAā at 1000 mgĀ·Lā»Ā¹ during the 2-week prechilling period. While prechilling alone increased emergence to and average 34% for new and old seeds, prechilling with GAā increased emergence to 75% and 50% for new and old seeds, respectively. These treatments did not influence seedling shoot dry mass. Seed exposure to GAā during rather than after prechilling was more effective in promoting Indiangrass establishment." |
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| Language: | English |
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| References: | 9 |
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| Note: | Tables |
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| 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 |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/33/5/article-p849.xml
Last checked: 11/13/2019
Requires: PDF Reader |
| 
MSU catalog number: SB 1 .H64 |
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