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以台农1号杧叶片为材料,采用离体叶片针刺法,对2005—2013年采自海南、广西、广东、云南、四川以及美国夏威夷、泰国地区的112株杧果炭疽病菌进行致病力测定。结果表明,所有菌株均能引起台农1号叶片致病,采自不同地区、不同部位和不同品种的杧果炭疽菌致病性存在一定的差异。供试菌株中强致病性菌株有30株,占供试菌株总数的26.78%;次强致病性菌株有27株,占24.11%;中致病性菌株有35株,占31.25%;弱致病性菌株有20株,占18.86%。
In order to study the pathogenicity of anthracnose, 112 strains of Colletotrichum gloeosporioides collected from Hainan, Guangxi, Guangdong, Yunnan, Sichuan and the United States in Hawaii and Thailand in 2005-2013 were obtained from the leaves of Tai-nong No.1. Force measurement. The results showed that all the strains could cause disease in TaiNong 1 leaves. There were some differences in the pathogenicity of anthracnose collected from different regions, different parts and different varieties. Thirty strains of pathogenicity were tested, accounting for 26.78% of the total number of tested strains. There were 27 strains of secondary pathogenicity, accounting for 24.11%, 35 pathogenic strains accounting for 31.25%, weak Pathogenic strains of 20, accounting for 18.86%.