【摘要】 水稻恶苗病致病镰孢种类及菌系研究罗俊国（华中农业大学植物保护系，武汉４３００７０）关键词：水稻恶菌病；镰孢；菌系ＳｔｕｄｉｅｓｏｎＰａｔｈｏｇｅｎｉｃＦｕｓａｒｉｕｍＳｐｅｃｉｅｓｏｆＲｉｃｅＢａｋａｎａｅＤｉｓｅａｓｅａｎｄＳｔｒａｉｎｓ￥ＬＵＯＪ...更多还原

【Abstract】 Infection plants of bakanae disease were collected from 22 counties(cities)in Hubei Province during 1990-1992.Thirty five isolates of single spore were isolated from the disease plants.Identification indicated that 31 isolates were F.moniliforme var.zhejiangensis;2 isolates were F.gramineum;1 isolate was F.oxysporum;1 isolate was F.solani..Thirteen kinds of plants inoculated with F.moniliforme var.zhejiangensis indicated that 6 ones were infected,among the hosts,Sudan grass and soybean were two new ones.Rice cultivar 837 inoculated with 13 differential strains of F.moniliforme var.zhejiangensis indicated that strong pathogenic strains were 38.4%,middle pathogenic strains were 15.7%,other strains were weak pathogenic ones. Hibrid rice Shanyou 48-2 with 13 differential strains indicated that strong pathogenic strains were 23.1%,middle pathogenic strains were 30.8%,other strains were weak pathogenic ones.更多还原