水稻稻瘟病是新疆水稻上的一种重要病害,天山南北各稻区都有发生,造成不同程度减产,稻米品质也相应降低.稻瘟病是一种侵染性病害,病菌主要以潜伏在被害稻草及稻种病组织内的菌丝越冬,越冬菌丝如能得到适宜的温度和湿度,便在上述被害器官的病部表面生出大量的分生孢子.它们是当年侵染水稻的最初菌源.因此,用带病稻种播种后,病菌即从幼苗基部侵染,引起苗稻瘟的发生.水稻本田的病菌,除来自越冬菌 Rice blast is one of the most important diseases in Xinjiang rice. Rice fields in both north and south of Tianshan Mountains have occurred, resulting in different degrees of yield reduction and corresponding reduction of rice quality. Rice blast is an infectious disease, And the mycelium of rice seedlings overwinter, the overwintering mycelium can get a large number of conidia on the diseased part of the victim organism if they can get the proper temperature and humidity, which is the initial source of rice that infects rice. Therefore, with the diseased rice sowing, the germ that is infected from the seedling base, causing the occurrence of rice blast disease rice Honda bacteria, in addition to from the overwintering bacteria