【作者】 张淑霞； 崔崇士； 徐立彬；

【Author】 Zhang Shuxia, Cui Chongshi, and Xiu Libing (Qingdao Institute of Agriculture, Qingduo 266100; Northeast Agricultural University, Harbin 150030)

【机构】 青岛市农业科学研究所； 东北农业大学蔬菜园艺系；

【摘要】 通过1995、1996两年的研究表明黑龙江省秋季大白菜引起黑斑病的主要致病菌是链格孢属的芸薹链格孢。同时对21个芸薹链格孢分离物进行致病分化研究,根据它们在4个鉴别寄主上的反应,划分为7个致病型,其中ABⅠ型为优势致病型,但其致病力最弱,ABⅣ型致病力较强,出现机率较多。更多还原

【Abstract】 Experiments made through 1995 and 1996 indicated that the major pathogenic germ that caused black spot in Chinese cabbage was Alternaria brassicae (brek) Sacc. in Heilongjiang Provinec. We Studied pathogenic types of black spot with 21 isolates separated from Chinese cabbage. Based on the reactions of 21 isolates on 4 identified hosts, the isolates were identified with 7 types. ABI was the dominant type, but its pathogenicity was the least. ABIV turned out contrary to ABI.更多还原