摘要
1990~1997年,用中国稻瘟病菌鉴别寄主鉴定了广东省稻瘟病菌单孢菌株1574份,共鉴定出8群43个生理小种。其中ZC群一直是广东省的优势种群,其出现频率平均为502%;ZC13一直是优势小种,其出现频率平均为274%,其次是ZG1(188%)、ZC15(145%)和ZB13(91%)小种。不同地区不同年份优势小种的类型及其组成不同。
isolates of rice blast fungus, Magnaporthe grisea, were collected in Guangdong Province, and of them 8 groups with 43 races were identified using differential rice varieties during 1990-1997. The results showed that ZC group of them was the dominant group with the average frequence of 50.2%, and race ZC13 was the dominant race with the average frequency of 27.4%. The average frequency of races ZG1, ZC15 and ZB13 were 18.8%, 14.5% and 9.1%, respectively. Types and compositions of the races were different from time to time and place to place.
出处
《植物保护》
CAS
CSCD
北大核心
1999年第3期5-7,共3页
Plant Protection
关键词
稻瘟病
生理小种
消长动态
广东
Magnaporthe grisea
physiological races
dynamics