Research Advances of the Resistance Gene to Nicosulfuron in Maize
Nicosulfuron has been widely applied in China since the early 1990s,which was used as an effi-cient,broad-sulfonylurea maize herbicide at seedling stage.However,recent reports indicate that nicosulfuron is genotype dependent,it causes serious injuries to some maize varieties,which can result in a reduction of maize grain yield.The most effective way to solve the problem is to discover and apply the resistance gene of nicosulfuron in maize,which could cultivate new varieties of herbicide resistance.In this review,we expound the development of the weed control,selection,detoxification mechanism and the resistance differences of different maize varieties to nicosulfuron.Meanwhile,we focus on systematic summary and explanation of the progress of genetic mechanism,gene localization,cloning and different haplotypes of resistance to nicosulfuron in maize.That will help us acceler-ate the process of the application of resistance genes and the herbicide resistance varieties breeding,which would ensure the safety of maize production in China.
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