中国烟草学报Issue(1)：72-75,4.
四种杀菌剂对烟草青枯病菌的毒力比较
Toxicity test of four fungicides againstRalstonia solanacearum
摘要
Abstract
Toxicity of four fungicides againstRalstonia solanacearumwas measured by improved inhibition zone method in order to find which fungicide boasted the best inhibitory effect. Results indicated that inhibition rates gradually rose with the increase of concentration. Inhibition rates of Qingkuling, Agricultural streptomycin sulfate and Zhongshenguycin reached 94.3%, 89.1% and 84.4% in 72 h under the concentration of 1450, 310 and 700 mg·L-1, respectively. The inhibition rate of Xinjunan acetate was as high as 78.1% in 48 h. The toxicity level of four fungicides was in the following order: Agricultural streptomycin sulfate>Xinjunan acetate>Qingkuling>Zhongshenguycin. The toxicity of Agricultural streptomycin sulfate and Xinjunan acetate was higher than that of Qingkuling and Zhongshenguycin. The EC50 of Agricultural streptomycin sulfate and Xinjunan acetate was 274.57 ug·L-1 and 148.25 ug·L-1, respectively. It was concluded that Agricultural streptomycin sulfate and Xinjunan acetate were ideal fungicides for prevention ofRalstonia solanacearum.关键词
改良抑菌圈法/杀菌剂/烟草青枯病菌/毒力测定Key words
bacteriostatic circle/fungicides/Ralstonia solanacearum/toxicity measurement引用本文复制引用
黄保宏,高正良,周本国,陈方旭,许大凤,王芳..四种杀菌剂对烟草青枯病菌的毒力比较[J].中国烟草学报,2015,(1):72-75,4.基金项目
中国烟草总公司云南省公司科技项目（2012YN02）；中国烟草总公司科技项目 （）
