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】１９９１～１９９６年，从江苏省主要稻区采集到４９１份稻瘟病标样，单孢分离后经７个全国统一鉴别品种鉴定，共检出７群１５个小种。其中，ＺＧ１一直是江苏省的优势小种，ＺＤ，ＺＥ种群出现的频率也很高。各稻区小种分布不同，病害常年流行的太湖稻区种群最复杂。ＺＧ１小种能在大部分品种上分离到，且分离频率很高，ＺＤ和ＺＥ群小种也有较高的分离频率。根据各稻区小种分布，选育和引进相应的抗性品种非常迫切和重要。
From 1991 to 1996, 491 rice blast samples were collected from the main rice planting areas in Jiangsu Province. After single spore separation, they were identified by 7 national uniform identification varieties, and 7 groups of 15 races were detected. Among them, ZG1 has been the dominant races in Jiangsu Province, ZD, ZE population frequency is also high. The distribution of races in different rice regions is different, and the perennial epidemic in Taihu Lake is the most complicated. ZG1 races can be separated in most varieties, and the separation frequency is high, ZD and ZE races also have a higher frequency of separation. According to the distribution of races in different rice regions, it is very urgent and important to select and introduce the corresponding resistant varieties.