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水稻白叶枯病是威胁水稻生产的重要病害之一。特别近年推广杂交稻“南优2号”等组合以来,凋萎型白叶枯病发生普遍。由于本病传播途径广,蔓延快,采用栽培和药剂相结合的综合防治措施,必须环环扣紧,否则不易见效。实践证明,选用抗病良种是防治本病经济而有效的途径。因此,发掘抗源,选育抗病品种,提供生产应用,有着极其重要的意义。
Rice bacterial leaf blight is one of the most important diseases that threaten rice production. Especially in recent years to promote the hybrid rice “Nanyou 2” and other combinations since the wilt-type bacterial blight widespread. Because of the wide spread of the disease, spread rapidly, using a combination of cultivation and medicine comprehensive prevention and control measures, the ring must be fastened, otherwise not easy to bear fruit. Practice has proved that the selection of disease-resistant varieties is the prevention and treatment of the economy and effective way. Therefore, to explore anti-source, breeding resistant varieties, to provide production and application, has extremely important significance.