抗甲霜灵烟草黑胫病菌突变株的交互抗药性研究  

Studies on Cross-resistance of Resistant-metalaxyl Strainsin Phytophthora Nicotianae var.nicotianae

作　　者：许学明[1] 王开运[2] 段海明[2] 林才华[2] 张文成[2] 

机构地区：[1]连云港职业技术学院,江苏连云港222006 [2]山东农业大学植物保护学院,山东泰安271018

出　　处：《连云港职业技术学院学报》2007年第3期14-17,共4页Journal of Lianyungang Technical College

基　　金：国家烟草专卖局重点科技项目(国烟科[2003]579号)

摘　　要：采用菌落生长速率法,测定了2种保护性杀菌剂和4种内吸性杀菌剂对烟草黑胫病菌敏感菌株和4个抗甲霜灵突变株的EC50值,测定了抗甲霜灵烟草黑胫病菌突变株对5种杀菌剂的交互抗性。结果表明:抗甲霜灵烟草黑胫病菌突变株对代森锰锌有负交互抗性现象,对百菌清、霜脲氰、乙磷铝和霜霉威无交互抗性。In this study, the EC50 values to sensitive strain and 4 resistant - metalaxyl strains in Phytophthora nicotianae var. nicotianae of 2 unsystemic and 4 systemic fungicides were determined by the method of colonial growth - rate; the cross - resistances to 5 fungicides of the resistant - metalaxyl strains in P. nicotianae var. nicotianae were determined. The results showed that the resistant - metalaxyl strains in P. nicotianae var. nicotianae had negative cross - resistance to mancozeb, and had no cross - resistance to chlorothalonil, cymoxanil, fosetyl- Al, and propamocarb.

关 键 词：烟草黑胫病菌 抗甲霜灵 交互抗性 

分 类 号：S481.4[农业科学—农药学]