5种杀菌剂对水稻纹枯病的防效研究  

Study on 5 Kinds of Fungicides Bioassay on Rice Sheath Blight

作　　者：江慧[1] 侯昌亮[1] 胡寒哲[1] 艾爽[1] 李俊凯[1] 

机构地区：[1]长江大学农学院,湖北荆州434025

出　　处：《长江大学学报（自科版）（中旬）》2013年第8期1-3,共3页Journal of Yangtze University(Nature Science Edition)

基　　金：国家自然科学基金项目(31371976)

摘　　要：比较了满穗、阿米妙收、拿敌稳、好力克、爱苗5种杀菌剂对水稻纹枯病的毒力与防效,旨在寻找出对江汉平原地区中稻纹枯病有较好防效的杀菌剂。结果表明:5种杀菌剂对水稻纹枯病的EC50分别为0.0335、0.0354、0.0733、0.4434、0.9006mg/L;按照推荐剂量喷雾后14d防效分别为51.98%、83.7%、71.05%、59.97%、61.09%。满穗在室内对水稻纹枯病具有较强的抑菌作用,在大田中阿米妙收则具有较好的防效。The control efficiencies of 5 kinds of fungicides which were 24% thifluzamide(SC),20% azoxystrobin and 12.5% difenoconazole(SC),50% tebuconazole and 25% trifloxystrobin,43% tebuconazole,15% propiconazole and 15% difenoconazole against rice sheath blight were compared,aiming at finding out the fungicide to control rice sheath blight more effectively on mid-season rice in Jianghan Plain area.The results showed that,the EC50 of the 5 fungicides were 0.0335,0.0354,0.0733,0.4434, 0.9006mg/L respectively,in field trials,the control effect were 51.98%,83.7%, 71.05%,59.97%,61.09% respectively after 14 dsprayed with recommended dosage. Although 24% thifluzamide(SC)had a higher inhibitory effect indoor against rice sheath blight,32.5% azoxystrobin and difenoconazole(SC)had higher control effect in the field.

关 键 词：杀菌剂 水稻纹枯病 防效 毒力 

分 类 号：S482.2[农业科学—农药学]