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| Web URL(s): | http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00356.x/full/
Last checked: 01/17/2014
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http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00356.x/pdf
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| Publication Type:
| Refereed |
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| Author(s): | Neve, P.;
Diggle, A. J.;
Smith, F. P.;
Powles, S. B. |
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| Author Affiliation: | Neve and Powles: Western Australian Herbicide Resistance Intiative, School of Plant Biology, University of Western Australia, Crawley, Western Australia, Australia; Diggle: Western Australian Department of Agriculture, South Perth, Western Australia, Australia; Smith: CSIRO Sustainable Ecosystems, Wembley, Western Australia, Australia |
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| Title: | Simulating evolution of glyphosate resistance in Lolium rigidum II: Past, present, and future glyphosate use in Australian cropping |
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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. 418-427. |
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| Publishing Information: | Oxford: Blackwell Scientific Publications |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Evolution; Models; Glyphosate; Herbicide resistance; Lolium rigidum; Futures; Herbicide rotation; Paraquat
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| Geographic Terms: | Australia |
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| Abstract/Contents: | "Glyphosate is a key component of weed control strategies in Australia and worldwide. Despite widespread and frequent use, evolved resistance to glyphosate is rare. A herbicide resistance model, parameterized for Lolium rigidum has been used to perform a number of simulations to compare predicted rates of evolution of glyphosate resistance under past, present and projected future use strategies. In a 30-year wheat, lupin, wheat, oilseed rape crop rotation with minimum tillage (100% shallow depth soil disturbace at sowing) and annual use of glyphosate pre-sowing, L. rigidum control was sustainable with no predicted glyphosate resistance. When the crop establishment system was changed to annual no-tillage (15% soil disturbace at sowing), glyphosate resistance was predicted in 90% of populations, with resistance becoming apparent after between 10 and 18 years when sowing was delayed. Resistance was predicted in 20% of populations after 25-30 years with early sowing. Risks of glyphosate resistance could be reduced by rotating between no-tillage and minimum-tillage establishment systems, or by rotating between glyphosate and paraquat for pre-sowing weed control. The double knockdown strategy (sequential full rate applications of glyphosate and paraquat) reduced risks of glyphosate and paraquat resistance to <2%. Introduction of glyphosate-resistant oilseed rape significantly increased predicted risks of glyphosate resistance in no-tillage systems even when the double knockdown was practised. These increased risks could be offset by high crop sowing rates and weed seed collection at harvest. When no selective herbicides were available in wheat crops, the introduction of glyphosate-resistant oilseed rape necessitated a return to a minimum-tillage crop establishment system." |
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| Language: | English |
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| References: | 22 |
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| See Also: | See also part 1: "Simulating evolution of glyphosate population resistance in Lolium Rigidum I: biology of a rare resistance trait," Weed Research, 43(6), December 2003, p. 404-417, R=92561 R=92561 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Neve, P., A. J. Diggle, F. P. Smith, and S. B. Powles. 2003. Simulating evolution of glyphosate resistance in Lolium rigidum II: Past, present, and future glyphosate use in Australian cropping. Weed Res. 43(6):p. 418-427. |
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| Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00356.x/full/
Last checked: 01/17/2014
Access conditions: Item is within a limited-access web site
http://onlinelibrary.wiley.com/doi/10.1046/j.0043-1737.2003.00356.x/pdf
Last checked: 01/17/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access web site |
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MSU catalog number: SB 599 .W4 |
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