Evolution of resistance to diclofop-methyl in ryegrass ( Lolium multiflorum ): investigation of the role of introgression with related species
✍ Scribed by Martínez-Ghersa, María A.; Ghersa, Claudio M.; Vila-Aiub, Martín M.; Satorre, Emilio H.; Radosevich, Steve R.
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 218 KB
- Volume
- 51
- Category
- Article
- ISSN
- 1526-498X
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✦ Synopsis
Populations of L olium multiÑorum (ryegrass) exposed to increasing levels of herbicide selection have variability in the rate of evolution of herbicide resistance. We tested the hypothesis that herbicide dose and gene Ñow with related species are important factors regulating the rate of evolution of herbicide resistance in L . multiÑorum. Seeds of the latter were planted in pure stands and in mixture with Festuca rubra and subjected to four herbicide rates. The level of herbicide resistance attained by the o †spring after two years of selection was evaluated. Evolution of resistance observed in the Ðeld was compared to that calculated by Gressel and SegelÏs rotational model.