作　　者： ; ; ; ;

机构地区： 华南农业大学资源环境学院农药与化学生物学教育部重点实验室

出　　处： 《华中农业大学学报》 2006年第4期 378-380,共3页

摘　　要： 以水稻纹枯病菌（Rhizoctonia solani ）为供试菌，采用菌丝生长速率法，测定了柠檬酸、草酸、水杨酸、乙酸、丙酸、山梨酸对多菌灵的增效作用。试验结果表明，供试有机酸对多菌灵都有增效作用，当多菌灵与有机酸质量比为1：2时其配比最合理。盆栽试验结果表明，草酸、柠檬酸对多菌灵的增效作用最明显，500mg／L多菌灵原粉与有机酸以质量比为1：2混配使用后，防效分别为80．26％、65．51％，优于对照药剂50％多菌灵可湿性粉剂在同样浓度的防效（36．22％）。 A mycelial growth inhibition assay was used to determine to which extent citric acid,oxalic acid, salicylic acid, acetic acid, propionic acid and sorbic would acid enhance the protection efficacy of carbendazim against the Rhizoctonia solani. The results indicated that all the acids functioned in improving the efficiency of canbendazim. When the mass-proportion of carbendazim to organic acid was 1 ： 2, the best inhibiting rates was reached. In the pottig experiment, the protection efficacy of oxalic and citric acid mixed medicament were 80. 26%, 65. 51% at the concentration of 500 mg/L respectively, and they were much better than that of 50% carbendazim WP（36.22%）.

关 键 词： 多菌灵 水稻纹枯病菌 有机酸 增效

领　　域： [农业科学] [农业科学]