油菜菌核病菌对杀菌剂啶酰菌胺的抗性风险研究  

Resistance Risk of Sclerotinia sclerotiorum to Boscalid

作　　者：郝芳敏 周锋[1] 朱福兴[1] 

机构地区：[1]华中农业大学植物科学技术学院,武汉430070

出　　处：《湖北农业科学》2014年第11期2555-2557,共3页Hubei Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项(201103016)

摘　　要：为了解油菜菌核病菌(Sclerotinia sclerotiorum)对杀菌剂啶酰菌胺的抗性风险,在室内采用菌株Hnm1和A53-3对含不同浓度多菌灵和啶酰菌胺的PDA培养基进行连续30代的抗性筛选。结果表明,啶酰菌胺在相同浓度下,对菌株Hnm1的抑制率由初始的35.83%下降至30.48%,对菌株A53-3的抑制率由初始的61.07%下降至54.40%。通过抑制率的下降可推断油菜菌核病菌对啶酰菌胺的抗性风险与对多菌灵的抗性风险相近。In order to evaluate resistance risk of Sclerotinia sclerotiorum to boscalid,resistance to boscalid,carbendazim was selected consecutively for 30 generations by fungicide-amended PDA medium in laboratory.Results showed that inhibition percent of boscalid at the same concentration to isolate Hnm1 was dropped from initial 35.83% to 30.48%.Inhibition percent to isolate A53-3 was dropped from initial 61.07% to 54.40%.Based on the decrease of inhibition percent,resistance risk of S.sclerotiorum to boscalid was similar to that to carbendazim.

关 键 词：油菜菌核病菌(Sclerotinia sclerotiorum) 啶酰菌胺 抗性风险 

分 类 号：S432.44[农业科学—植物病理学] S482.26[农业科学—农业昆虫与害虫防治]