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毕节市白菜黑斑病的病害研究及病原鉴定
引用本文:张国辉,陶敏,张文华.毕节市白菜黑斑病的病害研究及病原鉴定[J].安徽农业科学,2011,39(19):11477-11479.
作者姓名:张国辉  陶敏  张文华
作者单位:凯里学院环境与生命科学分院,贵州,凯里,556011;凯里学院环境与生命科学分院,贵州,凯里,556011;凯里学院环境与生命科学分院,贵州,凯里,556011
摘    要:目的]对贵州省毕节市的白菜黑斑病进行病害分析和病原鉴定,以提出相应的预防措施。方法]采用表面组织分离法从病叶中分离得到病原菌,并对病原菌进行培养、镜检、孢子大小测定和鉴定。结果]显微镜镜检的病原菌特征表明,引起白菜黑斑病的病原菌是链格孢菌(Alternariasp.),病原菌的孢子大小为(15.0~38.5)μm×(7.5~13.5)μm,结合寄主和病原特征,引起白菜黑斑病的病原菌被鉴定为芸薹生链格孢(Alternaria brassicicola)。结论]芸薹生链格孢为贵州省毕节市当前白菜黑斑病的病原菌,可以通过农业措施和药剂预防来减少该病的危害。

关 键 词:白菜  黑斑病  病原菌  芸薹生链格孢

Disease Analysis and Pathogen Identification of Black Spot Disease of Chinese Cabbage [Alternaria brassicae (Berk.) Sace.] in Bijie City
ZHANG Guo-hui et al.Disease Analysis and Pathogen Identification of Black Spot Disease of Chinese Cabbage [Alternaria brassicae (Berk.) Sace.] in Bijie City[J].Journal of Anhui Agricultural Sciences,2011,39(19):11477-11479.
Authors:ZHANG Guo-hui
Institution:ZHANG Guo-hui et al(Department of Environment & Biological Science,Kaili College,Kaili,Guizhou 556011)
Abstract:Objective]Disease analysis and pathogen identification of black spot disease of Chinese cabbageAlternaria brassicae(Berk.) Sace.]in Bijie City of Guizhou Province was carried out,so as to raise the corresponding prevention measures.Method]Pathogen was isolated from diseased leaves using tissue surface isolation method for cultivation,microscopic examination,spore size determination and pathogen identification.Result] Microscopic examination showed that the disease was caused by Alternaria sp.,the size o...
Keywords:Chinese cabbage  Black spot disease  Pathogen  Alternaria brassicicola  
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