摘要
病原菌孢子悬浮液经人工接种可侵染稗、高梁、玉米和大麦,但不侵染水稻、小麦和小米.病菌的培养滤液稀释液对稗、高粱、小米表现毒性,对水稻、小麦、玉米、大麦不表现毒性.用培养滤液配成的孢子悬浮液接种2叶期稗苗.10d 后最高死苗率为60.5%,病情指数为86.63.
Spraying inoculation of spore suspension of the pathogen infect barnyardgrass,sorghum,maize and barley,but not rice,wheat and millet.Diluent of culture filtratewas toxic to barnyard grass,sorghum and millet,but not to rice,wheat,maize and barley.Spore suspension mixed with diluent of culture filtrate induced more disease severity.
关键词
植物真菌病
稗
叶枯菌
plant fungus disease
hosts/barnyard-grass blight
pathogen
pathogenicity
