甜菜夜蛾优良球孢白僵菌菌株的筛选  

The Screening Virulent Strain of Beauveria bassiana to Laphygma exigua Hubner

作　　者：王云滨[1] 董建臻[1] 宋入梅 李瑞军[1] 李静[1] 陆秀君[1] 

机构地区：[1]河北农业大学植物保护学院,河北保定071001 [2]邯郸市畜牧水产局,河北邯郸056002

出　　处：《中国农学通报》2007年第5期346-348,共3页Chinese Agricultural Science Bulletin

基　　金：河北省农业病虫害生物防治工程技术研究中心;河北省教育厅"高活性昆虫抗菌肽的筛选及其对植物致病菌抑菌活性的研究"(2005112);河北省科技厅(03220185D);河北农大发展基金资助项目

摘　　要：测定初筛获得的6个球孢白僵菌菌株的毒力、产孢量、萌发率、胞外蛋白酶活性及菌株生长速度等多个生物、生态学指标,从专业角度构建最优序列,经灰色分析和不同菌株毒力效价显著性比较,筛选出了两株具有较大生产潜力的优良菌株BD-B015和BD-B038,对甜菜夜蛾的校正死亡率分别为88.33%和86.70%,僵虫率分别为86.67%和85.27%。Different biological and ecological characteristics, virulence, sporulation, conidia bourgeon, Protea-Bse activity 1eve and colony growth of 6 strains of Beauveria bassiana were measured respectively. The results were calculated by grey relational analysis and the optimum sequence was built from the professional comparison of each strain＇s characteristics. Two strain＇s have a potential of appling in mass production, BD-B015 and BD-B038 were abtained. The revisory mortality to Laphygma exigua Hubner were 88.33% and 86.70%.The infected rate were 86.67% and 85.27%.

关 键 词：甜菜夜蛾 球孢白僵菌 菌株筛选 灰色分析 

分 类 号：S476.12[农业科学—农业昆虫与害虫防治]