Mechanisms of cross and multiple herbicide resistance in Alopecurus myosuroides and Lolium rigidum
نویسندگان
چکیده
منابع مشابه
Pollen-Mediated Movement of Herbicide Resistance Genes in Lolium rigidum
The transfer of herbicide resistance genes by pollen is a major concern in cross-pollinated species such as annual ryegrass (Lolium rigidum). A two-year study was conducted in the greenhouse, under favorable conditions for pollination, to generate information on potential maximum cross-pollination. This maximum cross-pollination rate was 56.1%. A three-year field trial was also conducted to stu...
متن کاملCross-resistance to prosulfocarb + S-metolachlor and pyroxasulfone selected by either herbicide in Lolium rigidum.
BACKGROUND Weeds can be a greater constraint to crop production than animal pests and pathogens. Pre-emergence herbicides are crucial in many cropping systems to control weeds that have evolved resistance to selective post-emergence herbicides. In this study we assessed the potential to evolve resistance to the pre-emergence herbicides prosulfocarb + S-metolachlor or pyroxasulfone in 50 individ...
متن کاملEvolved polygenic herbicide resistance in Lolium rigidum by low-dose herbicide selection within standing genetic variation
The interaction between environment and genetic traits under selection is the basis of evolution. In this study, we have investigated the genetic basis of herbicide resistance in a highly characterized initially herbicide-susceptible Lolium rigidum population recurrently selected with low (below recommended label) doses of the herbicide diclofop-methyl. We report the variability in herbicide re...
متن کاملEcological review of black-grass (Alopecurus myosuroides Huds.) propagation abilities in relationship with herbicide resistance
Alopecurus myosuroides Huds. (black-grass) has always been a major concern for cereal growers, and the development of herbicide resistance does not improve the situation. This review article summarizes the different traits involved in the dispersal pattern of herbicide resistant black-grass individuals within a susceptible field population. Therefore, the whole life cycle of black-grass is depi...
متن کاملModelling the Population Genetics and Dynamics of Multiple- and Cross-resistance in Lolium Rigidum
Results are presented from a three gene population genetics and dynamics model of herbicide resistance in annual ryegrass. The models predictions are compared with those of other one and two gene resistance models to validate the modelling approach which will ultimately be used to develop a five-gene herbicide resistance model. The importance of initial gene frequencies for resistance in unsele...
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ژورنال
عنوان ژورنال: Phytoprotection
سال: 2005
ISSN: 1710-1603,0031-9511
DOI: 10.7202/706068ar