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1988—1993年。用中国白叶枯病菌致病型研究的鉴别品种和鉴定方法,测定450份广东白叶枯病分离菌株在中国鉴别品种上的抗感反应,把广东白叶枯病菌系划分为5个致病型。Ⅳ型菌是优势致病型,Ⅴ型菌是在广东首先发观的新致病型。近年来出观频率上升。范围扩大,能使现有推广的抗病品种丧失抗性。为品种的合理布局和抗病品种的选育提供了新信息和理论依据。
1988-1993. Antibiotic reactions of 450 isolates of Guangdong bacterial blight were identified by using the identification and identification methods of the pathogenicity of the Chinese bacterial blight of Bacterial Blight. The bacterial strains of Guangdong were divided into five pathogenicity type. Type IV bacteria is the predominant pathogenic type, type V bacteria is the first in Guangdong new concept of pathogenic type. The frequency of appearance has risen in recent years. The scope of expansion can make existing varieties of resistant varieties lose their resistance. It provided new information and theoretical basis for the reasonable layout of varieties and breeding of resistant varieties.