Position: Home > Articles > Sensitivity Baseline of Botryosphaeria dothidea from Apple to Thiophanate-methyl
Hubei Agricultural Sciences
2016,55
(22)
5825-5827
苹果轮纹病菌对甲基硫菌灵的敏感性基线
作 者：
刘保友;张伟;栾炳辉;王英姿
单 位：
山东省烟台市农业科学院植物保护研究所
关键词：
苹果轮纹病菌(Botryosphaeria dothidea);甲基硫菌灵;敏感性基线
摘 要：
采用菌丝生长速率法测定了苹果轮纹病菌(Botryosphaeria dothidea)对甲基硫菌灵的敏感性。结果显示,EC50处于0.206 7~9.066 5 mg/L之间,平均为3.883 6±2.097 9 mg/L,与甲基硫菌灵对5个野生海棠菌株的EC50平均值3.041 3±0.296 5 mg/L无明显差异。正态检验表明,76个苹果轮纹病菌菌株对甲基硫菌灵的敏感性符合近似正态分布,山东省未出现产生抗药性的苹果轮纹病菌菌株,EC50平均值3.883 6±2.097 9 mg/L可作为苹果轮纹病菌对甲基硫菌灵的敏感性基线。
译 名：
Sensitivity Baseline of Botryosphaeria dothidea from Apple to Thiophanate-methyl
作 者：
LIU Bao-you;ZHANG Wei;LUAN Bing-hui;WANG Ying-zi;Institute of Plant Protection,Yantai Academy of Agricultural Sciences of Shandong Province;
关键词：
Botryosphaeria dothidea;;thiophanate-methyl;;sensitivity baseline
摘 要：
Sensitivity in Botryosphaeria dothidea to thiophanate-methyl was determined by mycelium growth rate method in fungicide-amended media. 50% effective concentration(EC50) of thiophanate-methyl were between 0.206 7 mg / L and 9.066 5mg / L and the mean EC50 was 3.883 6±2.097 9 mg / L. The mean EC50 for 5 white rot isolates of Chinese flowering crabapple without a previous history of fungicide exposure to thiophanate-methyl was 3.041 3±0.296 5 mg / L,which was not distinct from3.883 6±2.097 9 mg / L. Normal distribution analysis showed that the sensitivity of isolates to thiophanate-methyl was fitted well with a normal distribution function. So far, resistance to thiophanate-methyl was not found in 76 isolates collected in Shandong province. The mean EC50 of 3.883 6±2.097 9 mg / L was made as sensitivity baseline of B. dothidea from apple to thiophanate-methyl.
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