九种除草剂对蔬菜菌核病菌的毒力  

Nine Chemical Herbicides on Sclerotinia sclerotiorum Mycelial Growth

作　　者：徐建强[1] 侯颖[1] 刘改[1] 陈蕊[1] 张凯[1] 鞠丰泽 王振隆 

机构地区：[1]河南科技大学林学院,河南洛阳471003

出　　处：《湖北农业科学》2014年第8期1823-1825,共3页Hubei Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(201303023);河南科技大学人才科学研究基金项目(09001718)

摘　　要：采用菌丝生长速率法测定9种除草剂对蔬菜菌核病菌[核盘菌,Sclerotinia sclerotiorum(Lib.)de Bary]菌丝生长的影响。结果表明,9种除草剂对菌核病菌菌丝生长均有抑制作用,随浓度增加抑制作用加大,但对菌核病菌的毒力不同。丁草胺对菌核病菌的毒力最强,EC50为12.69μg/mL,氨磺乐灵毒力最差,EC50为184.98μg/mL。毒力从大到小依次为丁草胺、异丙甲草胺、氟乐灵、精恶唑禾草灵、乙草胺、地乐胺、精喹禾灵、氰氟草酯、氨磺乐灵。The effects of nine chemical herbicides on Sclerotinia sclerotiorum mycelial growth were studied. The results showed that all herbicdies could inhibit the mycelial growth and the effects were increased with the increas of concentration. However, the toxicity was different. Butachlor has the strongest inhibition with EC50 of 12.69μg∕mL. EC50 of oryzalin was only 184.98μg∕mL. The toxicity from the strongeast to the weakeast were butachlor 〉 metolachlor, trifluralin〉fenoxaprop-p-ethyl〉acetochlor〉butralin〉quinofop-P-Ethyl〉cyhalofop-butyl〉oryzalin.

关 键 词：蔬菜菌核病菌[核盘菌 SCLEROTINIA sclerotiorum(Lib )de Bary] 除草剂 非靶标效应 毒力测定 

分 类 号：S482.4[农业科学—农药学] S436.3[农业科学—植物保护]