不同杀菌剂对玉竹根腐病菌的室内抑制效果  

Determination of Indoor Inhibition Effect of Fungicides on Root Rot of Polygonatum odoratum

作　　者：李晓丽 温健 沈宝宇 杨正书 孙文松 LI Xiao-li;WEN Jian;SHEN Bao-yu;YANG Zheng-shu;SUN Wen-song(Liaoning Cash Crop Institute,Liaoyang,Liaoning 111000)

机构地区：[1]辽宁省经济作物研究所,辽宁辽阳111000

出　　处：《辽宁农业科学》2021年第4期66-68,共3页Liaoning Agricultural Sciences

基　　金：财政部和农业农村部:国家现代农业产业技术体系;辽宁省农业科学院学科建设项目(2019DD144221);辽宁省农业科学院重大科研成果培育项目(2020CGPY0403)。

摘　　要：为筛选防治玉竹根腐病的有效药剂,通过室内测定多种杀菌剂对玉竹根腐病菌的抑制效果,得出毒力回归方程。结果表明:11种杀菌剂对该病原菌菌丝生长的抑制效果存在差异,其中30%戊唑.嘧菌酯SC、40%丙环唑EW、50%多菌灵WP、10亿芽孢/g枯草芽孢杆菌WP抑菌效果较好,抑菌率达88%以上,EC_(50)值分别为1.39、6.51、7.41、26.95 mg/L。可作为防治玉竹根腐病的参考用药。In order to select the effective fungicides to control root rot of Polygonatum odoratum,the inhibition effect of several fungicides on root rot of Polygonatum odoratum was evaluated through indoor determination which the toxicity regression equation was obtained.The results indicated:There were differences among the inhibition effects of 11 fungicides on the growth of the pathogen hyphae,30%fenazol·azoxystrobin SC,40%propiconazole EW,50%carbendazim WP,1 billion spores/g,the antibacterial effect of Bacillus subtilis WP was better,which the inhibition rate was above 88%and the EC_(50) value was 1.39、6.51、7.41、26.95 mg/L,respectively.It can be used as a reference for the control root rot of Polygonatum odoratum.

关 键 词：杀菌剂 玉竹根腐病 抑制效果 

分 类 号：S436.421.1[农业科学—农业昆虫与害虫防治]