摘要
用采集自全国的26个灰霉病菌株,采用苗期菌片接种法和离体叶片接种法,对两个黄瓜纯系进行抗病性鉴定,分析了不同灰霉病菌株对黄瓜品系的致病力。结果表明,不同灰霉病菌株对黄瓜的致病力表现出极显著的差异,平均病斑面积在0～556.15mm2之间。部分菌株对黄瓜不同基因型的致病力有一定差异。相关分析表明,离体叶片接种法的鉴定结果与苗期菌片接种法基本一致。
26 different strains of Botrytis cinerea Pers were used to identify the resistance of two pure lines of cucumber to gray mold by the inoculation method of mycelial plugs at seedling stage and in vitro leaves respectively. Results showed that the average area of disease spots in leaves infected by 26 strains were between 0 to 556. 15 mm^2, showing that the difference of pathogenicity was very significant. Resistance differences existed between two genotypes of cucumber inoculated by different strains. Analysis of gray correlation degree proved that the identification result of the inoculation method of in vitro leaves was basically coincidence with those of the inoculation method at seedling stage by certain strains.
出处
《中国蔬菜》
北大核心
2009年第18期25-28,共4页
China Vegetables
关键词
灰霉病
黄瓜
菌株
致病力
Botrytis cinerea
Cucumber
Strain
Pathogenicity
