Progress in Development and Application of Herbicide-Resistant Crops
Herbicide-resistant(HR)crops has played an important role in agricultural production.The planting of HR crops can improve the weed control efficiency and reduce the cost of agricultural production.However,with the large-scale planting of HR crops and the long-term use of the herbicide of single mode of action,the problem of HR weeds caused by the weediness of HR crops,the HR gene flow,and the herbicide selection pressure has gradually emerged.It is worthy of in-depth consideration to know how to develop and apply HR crops scientifically.This paper reviewed the progress in development and commercial application of HR crops obtained by transgenic technology,natural variation,artificial mutation and genome editing technology,and especially introduced the development and application of HR transgenic crops in China systematically.The problems of HR weeds caused by the planting of HR crops were analyzed from the perspective of the weediness of HR crops,the risks caused by the HR gene flow to relative weeds and the herbicide selection pressure,and the measures for delaying the evolution of HR weeds were proposed.Hopefully,this review would be able to provide theoretical reference for the development of research and commercialization of HR crops in China.
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