【摘要】 采用黑龙江省各地的大白菜黑斑病芸薹链格孢 ( Alternaria brassicae ( Berk.) Sacca.) 2 2个单孢菌株 ,对国内当前生产上应用的大白菜、萝卜、甘蓝、油菜等十字花科蔬菜的品种 (其中含自交系和杂种一代 )共 51份进行苗期接种鉴定。试验结果表明 ,各品种对不同的菌株抗感反应差异明显。根据同一品种在相同条件下对不同菌株抗感反应存在差异 ,而在不同条件下对同一菌株抗感反应趋近一致 ,采用模糊聚类分析的方法 ,筛选出 5个鉴别寄主 ,它们是 ,二牛心大白菜、97- 3- 114大白菜、牡丹江一号大白菜、新一号大白菜和四九菜心更多还原

【Abstract】 Twenty-two single-spore strains of Alternaria brassicae for alternaria leaf spot in Chinese cabbage in Heilongjiang province were collected in this experiment.Inoculation identification was done in Cabbage,radish,oilseed,etc.Which were often grown for production.The differences among the varieties’reaction to different fungus strains were obvious.According to different fungus,5 differential hosts were some Chinese cabbage cultivars:ErNiuXin,97-3-114,MuDanjiang No1,XinNo1 and flowering Chinese cabbage Sijiu respectively.$$$$更多还原