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1982～1985年继续用中国鉴别品种和吉林辅助鉴别品种接种鉴定了全省主要产稻区28个市、县533份稻瘟病标样分离菌。鉴定结果表明,随着水稻品种更换,吉林省稻瘟病菌生理小种的结构发生了明显变化,新出现ZC群中国小种,ZD群和ZE群中国小种的出现频率也明显增长。吉林小种的变化更为明显,出现J_4、J_6两个新小种组,J_0组小种(ZD_1J_0、ZE_1J_0、ZF_1J_0、ZG_1J_0等)的出现频率明显下降;J_2组小种(ZD_1J_2,ZE_1J_2、ZF_1J_2、ZG_1J_2等)的出现频率显著上升。本文对吉林省稻瘟病菌生理小种数量的消长变化与水稻品种的关系作了初步分析。
From 1982 to 1985, 533 rice blast isolates from 28 municipalities and counties in the main rice producing areas in China were identified by inoculation with Chinese identification varieties and Jilin identification varieties. The identification results showed that with the replacement of rice varieties, the structure of the races of the rice blast germplasm in Jilin Province changed significantly. The occurrence frequency of Chinese races of ZC group, ZD group and ZE group in China also increased obviously. The emergence of J_4 and J_6 two new races showed that the occurrence frequency of Z_J_0, ZE_1J_0, ZF_1J_0, ZG_1J_0 and so on were significantly decreased in J_0 group. The frequency of ZD_1J_2, ZE_1J_2, ZF_1J_2 , ZG_1J_2, etc.) increased significantly. In this paper, we initially analyzed the relationship between the growth and decline of the rice blast races and the rice varieties in Jilin Province.