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Position: Home > Articles > Sensitive Baseline of Exserohilum turcicum to Prochloraz Agrochemicals 2014,53 (6) 445-448

玉米大斑病菌对咪鲜胺敏感基线的建立

作  者:
杨正宇;张祥辉;兰杰;陈宣明;司乃国
单  位:
吉林大学植物科学学院沈阳化工研究院有限公司;沈阳化工研究院有限公司;吉林大学植物科学学院;沈阳化工研究院
关键词:
玉米大斑病菌;咪鲜胺;敏感基线
摘  要:
[目的]通过对吉林省不同地区104株玉米大斑病菌敏感性的测定,建立吉林省玉米大斑病菌对咪鲜胺的敏感基线。[方法]采用菌丝生长速率法测定。[结果]这些菌株均未对咪鲜胺产生抗性,其中最敏感菌株E C50值为0.002 2 mg/L,最不敏感菌株EC50值为0.061 0 mg/L,测得这些菌株对咪鲜胺EC50值的平均值为(0.030 5±0.015 6)mg/L。[结论]所有菌株敏感性频率分布呈近似正态分布,可将平均EC50值0.030 5 mg/L初步定为吉林省玉米大斑病菌对咪鲜胺的敏感基线。
译  名:
Sensitive Baseline of Exserohilum turcicum to Prochloraz
作  者:
YANG Zheng-yu;ZHANG Xiang-hui;LAN Jie;CHEN Xuan-ming;SI Nai-guo;PAN Hong-yu;College of Plant Science,Jilin University;Shenyang Research Institute of Chemical Industry Co.,Ltd.,State Key Laboratory of the Discovery and Development of Novel Pesticide;
关键词:
Exserohilum turcicum;;prochloraz;;baseline-sensitivity
摘  要:
[Aims]The sensitivities of 104 Exserohilum turcicum strains,selected from differrent aeras in Jilin province,to prochloraz have been detected and the baseline was established.[Methods]Mycelium growth rate.[Results]The results showed that these strains had no resistancet to prochloraz.The EC(50) of the most sensitive strain was 0.0022 mg/L and the EC(50) of the least sensitive one was 0.0610 mg/L.The average of them was(0.0305±0.0156) mg/L.[Conclusions]The sensitivity frequencies distribution of the strains was similar with Gaussian distribution,the average EC(50) 0.0305 mg/L can be the baseline-sensitivity of E.turcicum to prochloraz.

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