论文部分内容阅读
由稻瘟病菌(Magnaporthegrisea,无性世代为Pyriculariagrisea)引发的水稻稻瘟病是目前水稻生产上的重要病害之一,存在着品种专化性和致病性的分化。一些抗病品种推广 3~5年后即丧失抗病性,给生产带来很大危害。目前选育和利用抗病良种仍是防治该病最经济有效的措施 [1]。由
Rice blast caused by Magnaporthe grisea (clonal generation Pyriculariagrisea) is one of the most important diseases in rice production. There is variety differentiation and pathogenic differentiation. Some disease-resistant varieties are 3 to 5 years after the loss of disease resistance, to bring great harm to the production. The current breeding and utilization of resistant varieties is still the most cost-effective prevention and treatment of the disease measures [1]. by