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从望江棉区分得5个菌株（系），经寄主致病性测定，结果表明：菌株WJF03、WJF04属生理型Ⅰ，致病力强，与对照菌株陕F13－1相似；菌株WJF01、WJF02和WJF05属生理型Ⅱ，致病力中度，与另一对照菌株苏宁相似。
The results showed that the strains WJF03 and WJF04 belonged to physiological type Ⅰ and had strong pathogenicity, similar to the control strain Sha-F13-1. The strains WJF01 and WJF02 And WJF05 is a physiological type II, moderate pathogenicity, similar to another control strain Suning.