经过三年预备试验,1983年选取了全省棉花枯萎病普查中分离的20个菌系,另加致病力强的江苏启东型和南京型菌系作对照,采用海岛棉、陆地柿、中棉的6个品种作鉴别寄主,在田间进行纸钵接种鉴定。结果看出:致病力近似启东型的强菌系8个,近似南京型的弱苗系4个,中间类型8个。 After three years of preliminary test, in 1983, 20 strains of bacteria isolated from the survey of cotton blight in the province were selected. In addition, 20 strains of pathogenic bacteria from Jiangsu Qidong type and Nanjing type strains were used as controls, and island cotton, Six varieties of cotton as the identification of host, in the field of paper mortar identification. The results showed that there were 8 strong mycorrhizal pathogenicity strains in Qidong type, 4 weak type seedlings in approximate Nanjing type and 8 intermediate type.