在挖掘国内水稻品种资源的同时,引进、评价与利用国际水稻种质资源是育种的重要工作之一。本文是国际水稻种质对白叶枯病的抗性评价与利用结果。1.材料与方法　　　　从1975年起,我们鉴定了由中国农科院品种资源所统一引进的国际水稻品种资源对白叶枯病的抗性。1982—1992年,我 While excavating the resources of domestic rice varieties, introducing, evaluating and utilizing the international rice germplasm resources is one of the important tasks in breeding. This article is the result of the evaluation and utilization of the international rice germplasm resistance to bacterial blight. 1. Materials and methods Since 1975, we have identified the resistance of rice varieties to international research on rice varieties introduced by the Chinese Academy of Agricultural Sciences. 1982-1992, me