小麦蠕孢菌叶枯病菌室内药剂筛选  

Indoor Fungicide Screening of Helminthosporium Leaf Blotch on Wheat

作　　者：张海珊[1] 章东方[1] 严丹侃[1] 顾江涛[1] 张勇[1] 

机构地区：[1]安徽省农业科学院植物保护与农产品质量安全研究所,安徽合肥230031

出　　处：《安徽农业科学》2013年第5期1945-1945,2014,共2页Journal of Anhui Agricultural Sciences

基　　金：国家粮食丰产科技工程项目(2012BAD04B09);安徽省农作物品质改良重点实验室开放基金项目

摘　　要：[目的]筛选对小麦蠕孢菌叶枯病菌具有较强抑制效果的药剂。[方法]利用生长速率法测定了5种不同杀菌机制的杀菌剂对小麦蠕孢菌叶枯病菌的毒力。[结果]5种杀菌剂对小麦蠕孢菌叶枯病菌的作用效果差异很大,其中咪鲜胺对小麦蠕孢菌叶枯病菌菌丝的抑制作用最强,EC50仅为0.067μg/ml;苯醚甲环唑、戊唑醇、噻呋酰胺的抑制作用次之,EC50在0.102～0.372μg/ml;多菌灵的抑制作用最小,EC50为30.588μg/ml。[结论]对小麦蠕孢菌叶枯病菌安徽分离株有较好抑制作用的药剂是咪鲜胺、苯醚甲环唑和戊唑醇。[Objective] The aim was to screen out the fungicides which have good inhibition to Helminthosporium leaf blotch（HLB） on wheat.[Method] The toxicities of five fungicides against Bipolaris sorokiniana caused Helminthosporium leaf blotch on wheat were tested by mycelium growth rate method.[Result] The inhibition effects of five fungicides against B.sorokiniana were significantly different.Among them Prochloraz whose EC50 value was 0.067 μg/ml had the strongest inhibition effect on B.sorokiniana;the next were Difenoconazole,Tebuconazole and thifluzamide whose EC50 values were between 0.102 μg/ml and 0.372 μg/ml.Carbendazim whose EC50 value was 30.588 μg/ml was the worst.[Conclusion] Prochloraz,Difenoconazole and Tebuconazole have the better inhibition effects on B.sorokiniana caused Helminthosporium leaf blotch on wheat from Anhui Province.

关 键 词：小麦 蠕孢菌叶枯病 药剂筛选 

分 类 号：S512.1[农业科学—作物学]