甲霜灵·霜霉威复配剂对棉疫病菌的联合毒力  

Combined virulence of the mixed preparations of metalaxyl and propamocab to Phytophthora boehmeriae

作　　者：程玉峰[1] 高智谋[1] 时娟[1] 吴向辉[1] 卜训武[2] 

机构地区：[1]安徽农业大学植物保护学院,合肥230036 [2]安徽省化工研究院,合肥230031

出　　处：《植物保护》2007年第1期41-43,共3页Plant Protection

基　　金：安徽省"十五"科技攻关计划项目(01013011);安徽省高校学科拔尖人才基金(200322)

摘　　要：在实验室条件下,测定了甲霜灵和霜霉威复配剂对棉疫病菌(Phytophthora boehmeriae)的联合毒力。结果表明,复配剂MPA、MPB、MPC对棉疫病菌的EC50分别为0.055 5、0.104 4μg/mL和0.084 5μg/mL,对照单剂甲霜灵和霜霉威对棉疫病菌的EC50分别为0.039 1μg/mL和10.618 3μg/mL;联合毒力分析表明,甲霜灵和霜霉威按1∶1.5复配有增效作用,按1∶1和1.5∶1复配有相减作用。The combined virulence of the mixed preparations of metalaxyl and propamocab hydrochloride to the causal microorganism of cotton blight, Phytophthora boehmeriae, was investigated in vitro. The results indicated that the EC50 of the three tested mixtures, MPA, MPB and MPC to the pathogenic fungus were 0. 055 5 μg/mL, 0. 104 4μg/mL and 0. 084 5 μg/mL, respectively, and that the EC50 of metalaxyl and propamocab hydrochloride were 0. 039 1 μg/mL and 10. 618 2 μg/mL, respectively. It was suggested that the composition of metalaxyl and propamocab hydrochloride in the ratio of 1 to 1.5 produced additive effects but had reductive effect in the ratio of 1 to 1 and/or 1. 5 to 1.

关 键 词：棉疫病菌 甲霜灵 霜霉威盐酸盐 复配剂 联合毒力 

分 类 号：S482.2[农业科学—农药学]