作　　者： ; ; ; ;

机构地区： 华南农业大学资源环境学院

出　　处： 《华南农业大学学报》 2004年第2期34-36,共3页

摘　　要： 以117个野生型菌株菌丝生长的毒力测定结果建立了芒果炭疽病菌Colletotrichumgloeosporioides对多菌灵的敏感性基线,其平均EC50为(0 0568±0 0018)μg/mL,最低抑制浓度为1 0μg/mL.1996～2000年监测了芒果炭疽病菌对多菌灵抗药性的发生情况,结果表明,芒果炭疽病菌群体中存在着对多菌灵抗性的群体,抗药菌株的频率为48 59%,其中高抗与中抗菌株比例分别为18 66%和18 00%,低抗与极高抗菌株比例分别为7 38%和4 56%,讨论了不同地区菌株抗性频率存在差异的可能原因. The sensitivity base-line of Colletotrichum gloeosporioides, the causal agent of mango anthracnose, to the fungicide carbendazim was studied. The mean EC_(50) and minimum inhibitory concentration(MIC) values of carbendazim inhibiting mycelium growth of 117 wild-type isolates were ((0.056 8)±(0.001 8)) μg/mL and 1.0 μg/mL, respectively. The resistance of C. gloeosporioides to carbendazim was monitored from 1996 to 2000, and the results showed that the resistance developed in the population. 48.59% of the tested isolates were resistant to carbendaim, and the percentage of the resistant isolates in high-level, mid-level, low-level and very-high-level were 18.66%, 18.0%, 7.38% and 4.56%, respectively. The dynamics of resistance to carbendazim was also disscussed in the paper.

关 键 词： 芒果 炭疽病菌 炭疽病 多菌灵 抗药性 监测 敏感性基线 最低抑制浓度

领　　域： [农业科学] [农业科学] [农业科学] [农业科学]