8种杀菌剂对核桃根腐病菌室内毒力测定  

Toxicity Measurement of 8 Fungicides on Pathogenic Fungi of Walnut Root Rot

作　　者：王凡[1] 胡奎[1] 陈然[1] 江慧[1] 刘先福[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4-6,共3页Journal of Yangtze University(Nature Science Edition)

基　　金：国家自然科学基金项目(30971948)

摘　　要：采用菌丝生长速率法,测定了8种杀菌剂对核桃根腐病菌的室内抑菌活性。结果表明,8种杀菌剂对核桃根腐病菌菌丝生长均有一定的抑制作用,其中咪鲜胺对核桃根腐病菌的抑菌效果最佳,抑制中浓度(EC50)为0.2141mg/L;其次为申嗪霉素,EC50为0.2304mg/L;满穗和阿米西达的抑菌作用较差,其EC50分别为7674.623mg/L和530482.6mg/L。8种药剂的浓度与抑制作用呈正相关,相关系数均在0.96以上。By using mycelium growth rate method,the inhibitory activities of 8 fungicides to Pathogenic Fungi of walnut root rot were tested.The results showed that all of the 8 fungicides inhibited the growth of walnut root rot.Among them,Prochloraz showed the best,EC50 being 0.2141mg/L;then was Shenqinmycin,EC50 being 0.2304mg/L;Thifluzamide and Azoxystrobin the poor and EC50 were 7674.623mg/L and 530482.6mg/L,respectively.The correlation coefficient of 8 fungicides was above 0.96,the correlation of fungicides concentration and inhibition was positive.

关 键 词：杀菌剂 核桃根腐病 生长速率法 毒力测定 

分 类 号：S482.2[农业科学—农药学] S436.64[农业科学—植物保护]