摘要
以咪鲜胺、咯菌腈、戊唑醇、异菌脲和腐霉利等为试验药剂,开展番茄枯萎病菌的抑菌试验,并对抑制效果好的药剂进行复配试验,筛选出对番茄枯萎病菌抑制效果好的浓度及复配比例。结果表明,咪鲜胺和咯菌腈对番茄枯萎病菌菌丝生长的抑制作用显著。0.1μg·mL-1咪鲜胺对枯萎病菌的抑菌率为73.8%,EC50为0.02μg·mL^(-1);0.1μg·mL^(-1)咯菌腈对枯萎病菌的抑菌率为48.7%,EC50为0.17μg·mL^(-1)。0.1μg·mL^(-1)咪鲜胺和0.1μg·mL^(-1)咯菌腈以体积比为2∶8进行复配时,抑制效果最佳,抑菌率为91.1%。研究结果对化学药剂的科学合理使用提供理论依据,为防治番茄枯萎病提供重要信息。
The fungistatic effects of prochloraz,fludioxonil,tebuconazole,iprodione and procymidone on tomato Fusarium wilt were evaluated in this study.The concentration and proportion of compounds with mycelium growth-inhibition effect on Fusarium oxysporum were screened.The results showed that prochloraz and fludioxonil had significant inhibitory effect on the growth of mycelium.The inhibition rate of 0.1μg·mL^(-1) prochloraz and fludioxonil on Fusarium oxysporum were 73.8%and 48.7%,respectively.EC50 was 0.02μg·mL^(-1) and 0.17μg·mL^(-1) respectively.When the concentration of 0.1μg·mL^(-1) of prochloraz was mixed with fludioxonil,the inhibition rate was 91.1%.When the volume ratio was 2:8,it showed the significantly inhibitory effect.The results provide a theoretical data for the scientific and rational use of chemical fungicide,and provide important information for controlling tomato fusarium wilt as well.
作者
李丙雪
SIHOMCHANH Bounpheng
禤子琪
何琼
吴海燕
LI Bingxue;SIHOMCHANH Bounpheng;XUAN Ziqi;HE Qiong;WU Haiyan(Guangxi Key Laboratory of Agric-Environment and Agric-Products Safety,Agricultural College of Guangxi University,Nanning 530004,Guangxi,China;Nation Agriculture and Forestry Research Institute,Horticulture Research Center,Vientiane 7071,Lao PDR)
出处
《中国瓜菜》
CAS
北大核心
2021年第2期61-64,共4页
China Cucurbits And Vegetables
基金
国家现代农业产业技术体系广西创新团队(nycytxgxcxtd-10-04)
国家自然科学基金(31460464)。
关键词
番茄枯萎病
咯菌腈
咪鲜胺
药剂复配
抑菌率
Tomato Fusarium wilt
Fludioxonil
Prochloraz
Fungicide mixture
Inhibition rate
