6种杀菌剂对马铃薯晚疫病菌的室内毒力测定  

Virulence Evaluation of Six Fungicides in vitro Against Phytophthora infestans from Potatoes

作　　者：丁明亚[1] 秦宇轩[2] 朱杰华[3] 杨志辉[3] 陶晡[3] 丁红田[4] 

机构地区：[1]河北省围场县马铃薯研究所,河北围场068550 [2]河北农业大学食品科技学院,河北保定071001 [3]河北农业大学植物保护学院,河北保定071001 [4]河北省动物卫生监督所,河北石家庄050081

出　　处：《中国马铃薯》2010年第2期103-105,共3页Chinese Potato Journal

基　　金：现代农业产业技术体系建设专项资金资助项目(nycytx-15)

摘　　要：采用菌落直径法测定了金雷多米尔、杀毒矾、克露、克霜氰、大生M-45和进富6种杀菌剂对马铃薯晚疫病菌的毒力。结果表明供试的6种杀菌剂对马铃薯晚疫病菌丝生长都有较好的抑制作用,克露对晚疫病菌毒力最强,其EC50值为0.16μg·mL-1,毒力最差的是大生,其EC50值为2.89μg·mL-1,其余4种药剂按毒力大小依次为克霜氰、金雷多米尔、进富和杀毒矾,其EC50值分别为0.24μg.mL-1、0.28μg·mL-1、0.43μg·mL-1和1.17μg·mL-1。根据室内毒力测定结果及药剂特性,供试的6种杀菌剂在生产上可视病害的发生情况交替使用,以避免或延缓抗药性的产生。By using an in vitro radial growth assay,virulences of six fungicides(Golden ridomil,Sandofan,Curzate-M8,Cymoxanil-mancozeb,Dithane M-45,and Jinfu) to Phytophthora infestans were measured.The six fungicide tested had a better inhibition effect on the pathogen of potato late blight.Curzate-M8 was the best one,with EC50 being 0.16 μg·mL-1 and Dithane M-45 was the worst one,with a EC50 of 2.89 μg per millimeter.The EC50 values of the rest four fungicides(i.eCymoxanil-mancozeb,Golden ridomil,Jinfu,and Sandofan)...

关 键 词：致病疫霉 菌落直径法 毒力测定 杀菌剂 

分 类 号：S435.32[农业科学—农业昆虫与害虫防治]