【摘要】 江苏、福建、湖北和黑龙江等省的609个菌株在1ppm 多菌灵（MBC）的 PDA 平板上不能生长或生长严重受阻,其 ED₅₀都小于1ppm,说明无抗性菌株存在。ED₅₀分别为福建0.32ppm,湖北0.54ppm,江苏0.45ppm,黑龙江0.65ppm。经多次抗性诱导,获得能抗10ppmMBC 的菌株 J-8,但未得到高抗菌株。几种镰孢菌（Fusarium spp.）和灰葡萄孢（Botrytis cinerea）抗性诱导和驯化结果说明,镰孢菌较灰葡萄孢不易产生抗性。更多还原

【Abstract】 609 isolates from Jiangsu,Fujian,Hubei and Heilongjiang did not grow or werestrongly inhibited on the media containing 1 ppm carbendazim（MBC）,and theirED₅₀ were smaller than lppm,and no resistance was found.The base-line sensitivities of the samples from several provinces are as follows:Jiangsu:y=4.9561-5.4542x ED₅₀=0.45ppmFujian:y=5.7509-8.9734x ED₅₀=0.32ppmHubei:y=4.2434-3.917xED₅₀=0.54ppmHeilongjiang:y=5.0428-3.8691x ED₅₀=0.65ppmDuring the resisance induction,a medium resistant strain J-8 which can grow onthe media containing 10ppm MBC was gained,but no high level resistant strain ap-pearred.The results of resistance induction and domestication of several Fusarium spp.and Botrytis cinerea indicated that Fusarium spp.are less easy to develop rcsistancc tocarbendazim （MBC） than B.cinerea.更多还原