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| DOI: | 10.1046/j.0043-1737.2003.00363.x |
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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00363.x/full
Last checked: 01/17/2014
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00363.x/pdf
Last checked: 01/17/2014
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Steadman, K. J.;
Bignell, G. P.;
Ellery, A. J. |
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| Author Affiliation: | Steadman and Bignell: Western Australian Herbicide Resistance Initiative, School of Plant Biology, Faculty of Natural and Agricultural Sciences, University of Western Australia, Crawley, Western Australia, Australia; Ellery: CSIRO Plant Industry, Wembley, Western Australia, Australia |
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| Title: | Field assessment of thermal after-ripening time for dormancy release prediction in Lolium rigidum seeds |
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| Section: | Research papers
Other records with the "Research papers" Section
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| Source: | Weed Research. Vol. 43, No. 6, December 2003, p. 458-465. |
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| Publishing Information: | Oxford: Blackwell Scientific Publications |
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| # of Pages: | 8 |
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| Related Web URL: | http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00363.x/abstract
Last checked: 01/17/2014
Notes: Abstract only |
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| Keywords: | TIC Keywords: Ripening; Lolium rigidum; Dormancy; Temperatures; Water; Seeds; Germination
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| Geographic Terms: | Western Australia |
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| Abstract/Contents: | "Dormancy release was studied in four populations of annual ryegrass (Lolium rigidum) seeds to determine whether loss of dormancy in the field can be predicted from temperature alone or whether seed water content (WC) must also be considered. Freshly matured seeds were after-ripened at the northern and southern extremes of the Western Australian cereal cropping region and at constant 37°C. Seed WC was allowed to fluctuate with prevailing humidity, but full hydration was avoided by excluding rainfall. Dormancy was measured regularly during after-ripening by germinating seeds with 12-hourly light or in darkness. Germination was lower in darkness than in light/dark and dormancy release was slower when germination was tested in darkness. Seeds were consistently drier, and dormancy release was slower, during after-ripening at 37°C than under field conditions. However, within each population, the rate of dormancy release in the field (north and south) in terms of thermal time was unaffected by after-ripening site. While low seed WC slowed dormancy release in seeds held at 37°C, dormancy release in seeds after-ripened under Western Australian field conditions was adequately described by thermal after-ripening time, without the need to account for changes in WC elicited by fluctuating environmental humidity." |
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| Language: | English |
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| References: | 18 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Steadman, K. J., G. P. Bignell, and A. J. Ellery. 2003. Field assessment of thermal after-ripening time for dormancy release prediction in Lolium rigidum seeds. Weed Res. 43(6):p. 458-465. |
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| DOI: 10.1046/j.0043-1737.2003.00363.x |
| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00363.x/full
Last checked: 01/17/2014
Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00363.x/pdf
Last checked: 01/17/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: SB 599 .W4 |
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