| 广东省稻瘟病菌生理小种的消长动态 |
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| 引用本文： | 潘汝谦,康必鉴,黄建民,徐起峰. 广东省稻瘟病菌生理小种的消长动态[J]. 植物保护, 1999, 25(3): 5-7 |
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| 作者姓名： | 潘汝谦 康必鉴 黄建民 徐起峰 |
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| 作者单位： | [1]华南农业大学资源环境学院 [2]广东省农业厅植保总站 |
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| 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５０.２％；ＺＣ１３一直是优势小种，其出现频率平均为２７.４％，其次是ＺＧ１（１８.８％）、ＺＣ１５（１４.５％）和ＺＢ１３（９.１％）小种。不同地区不同年份优势小种的类型及其组成不同。
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| 关 键 词： | 稻瘟病 生理小种 消长动态 |
Race dynamics of Magnaporthe grisea in Guangdong Province during 1990-1997 . |
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| Pan RuqianKang Bijian Huang JianminXu Qifeng. Race dynamics of Magnaporthe grisea in Guangdong Province during 1990-1997 .[J]. Plant Protection, 1999, 25(3): 5-7 |
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| Authors: | Pan RuqianKang Bijian Huang JianminXu Qifeng |
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| Affiliation: | College of Resources & Environment;South China Agricultural University;Guangzhou510642;Plant Protection General Station;Agricultural Department of Guangdong Province |
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| Abstract: | 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. |
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| Keywords: | Magnaporthe grisea physiological races dynamics |
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