1986—1990年对全国18个省、市、区农科院提供的7152份材料进行抗稻瘟病鉴定,8254份材料进行抗白叶枯病鉴定,其中获稻瘟病0级76份,1级73份,2级142份,3级145份;获白叶枯病0级32份,1级151份,3级1066份,5级1490份,从中提出一批可直接或间接用于生产的品种。 From 1986 to 1990, 7,152 materials from 18 provinces, cities and districts were screened for resistance to rice blast and 8254 materials were identified for resistance to bacterial leaf blight, of which 76 were 0 grade 0, 73 grade 1 142 batches of Level 2 and 145 batches of Level 3, 32 batches of Level 0, 151 batches of Level 1, 1066 batches of Level 3, and 1490 batches of Level 5 were obtained. A batch of batches of cultivars that can be directly or indirectly used for production .