水稻抗除草剂作用机制及分子育种研究进展OA

As the most widely cultivated grain crop,the safe production of rice(Oryza sativa)is vital to the staple food source for nearly half of the global population.With the promotion of the simplified cultivation model,the planting area of direct seeding rice has continued to expand.However,the outbreak of drug-resistant weed populations such as Leptochloa chinensis and Echinochloa crus-galli has become a key biological stress factor restricting the improvement of rice yield and quality.Chemical weed control,as the primary method of management,faces issues such as limited selectivity,evolution of weed resistance,and ecological residue.This review summarized the molecular mechanisms of herbicide resistance in rice and recent advances in molecular breeding for herbicide-resistant rice varieties,while also analyzing technical bottlenecks and challenges in current herbicide application.The aim is to provide insights for the development and industrialization of herbicide-resistant rice.