哈茨木霉TH-1菌株对小麦纹枯病的控制效果研究  

Control Effect of Trichoderma harzianum TH-1 on Sharp Eye Spot of Wheat

作　　者：管怀骥[1] 陈莉[2] 

机构地区：[1]安徽丰乐农化有限责任公司,安徽合肥230031 [2]安徽农业大学植物保护学院,安徽合肥230036

出　　处：《安徽农业科学》2011年第16期9664-9665,共2页Journal of Anhui Agricultural Sciences

摘　　要：采用平板对峙培养法测定了哈茨木霉TH-1菌株对小麦纹枯病菌的抑制作用,并就其对小麦纹枯病的控制效果进行了室内杯播试验。结果表明:哈茨木霉TH-1菌株对小麦纹枯病菌菌丝生长有较强的抑制作用,抑制率达81.3%。在一定浓度范围内,哈茨木霉TH-1菌株的抑制作用随着孢子悬浮液浓度的降低逐渐降低。哈茨木霉TH-1菌株对小麦纹枯病有一定的控制作用,其中用哈茨木霉处理48 h后接种小麦纹枯病菌的防治效果最好,防效达74.0%。The inhibition of Trichoderma harzianum TH-1 against Rhizoctonia cereal and the control effect on sharp eye spot of wheat were studied by flat conforontation training.The results showed that the inhibition of T.harzianum TH-1 against R.cereal was strong,the inhibition rate was 81.3% in the solid cultural medium.The higher the concentrations of TH-1 conidia,the stronger the inhibition at a range of concentration of T.harzianum conidium suspension.In the tests of artificial inoculation,the highest control effect of T.harzianum on sharp eye spot of wheat was 74.0% While the wheat groats had been treated 48 h by T.harianum.

关 键 词：哈茨木霉 小麦纹枯病 抑菌作用 防治效果 

分 类 号：S435.121[农业科学—农业昆虫与害虫防治]