摘要
从山西神池山区露地番茄植株上采集分离到番茄叶霉病菌30个菌株,经室内测定,对代森锰锌平均EC50值为9.0671μg/ml,MIC值为50μg/ml,以此作为敏感基线。山西省6个地区的保护地番茄叶霉病菌对代森锰锌的抗性频率是83.9%,晋南地区抗性频率最高为98.7%;辽宁沈阳、山东寿光、河北保定的抗性频率都超过了90%。所有抗性菌株中没有高抗菌株,低抗和中抗菌株所占比例较大,其抗性水平集中在50倍左右。
Sensitivity to mancozeb of 30 isolates of Fulvia fulva （Cooke） Ciferri, collected from a mountainous region in Shenchi Shanxi province were tesedo All isolates minimum inhibitory concentration （MIC）of this fungicide was 50μg/ml and ECS0 were 9. 0671μg/ml . These data could be taken as sensitive baseline because any chemicals has not been used ever before in that area. The resistance frequencies of 347 isolates collected from other 6 regions of Shanxi province to mancozeb being surveyed,it was 83.9 %. The South parts of Shanxi province was 98.7%. Isolates collected from Shenyang, Shandong Shouguang and Hebei Baoding were also tested, the resistance frequencies was over 90 %. The resistance levels was two types of detected isolates to mancozeb and all of them belonged to lower resistance and middle resistance, and the resistance levels were 50 times or so.
出处
《山西农业科学》
2005年第4期66-68,共3页
Journal of Shanxi Agricultural Sciences
基金
山西省留学基金资助项目(99051)
山西省科技攻关项目(031011-4
03306)
