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黑龙江省稻瘟病菌生理小种的鉴定 被引量:27

Identification of the Physiological Race of Piricularia oryzae in Heilongjiang Province.
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摘要 应用3个籼稻、4个粳稻组成的中国鉴别品种将黑龙江省110个稻瘟病菌菌株划分为4群7个生理小种。用日本清泽的12个单基因抗性鉴别品种将上述菌株划分为77个生理小种。对+、ti-a、Pi-k、Pi-z基因致病频率高(70.4%~89%)的生理小种遍布全省各稻区;对Pi-t、Pi-b、Pi-zt基因致病频率低(0~19.3%)的生理小种分布窄,这3个基因可用于抗病育种。 The 110 isolates of Piricularia oryzae in Heilongjiang Province were classified into 4 groups and 7 races by 7 Chinese differential cultivars and into 77 races by 12 mono resistant gene differential caultivars of Kiyosawa (Japan). High virulence frequence (70.4% 89%) occurred with genotypes of+, ti a, Pi k, Pi z, and those races were widely distributed over all rice production areas of the Province. Low virulence frequency (0 19.3%) occurred with genotypes of Pi t, Pi b and Pi zt. These three genes could be used for blast resistant breeding. Differentials of Kiyosawa were suitable for differentiating races of Piricularia oryzae in Heilongjiang Province.
出处 《植物保护》 CAS CSCD 北大核心 1996年第4期11-14,共4页 Plant Protection
关键词 稻瘟病菌 生理小种 鉴定 稻瘟病 rice blast, physiological race, identification
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  • 1清泽茂久,中国科学.B,1984年,1期,44页

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