谭欢欢, 姜佳, 刘金亮, 张渊, 郭旭昊, 魏江桥, 钱乐, 徐建强, 刘圣明. 河南省禾谷镰孢菌对丙硫菌唑的敏感性[J]. 农药学学报, 2023, 25(2): 474-478. DOI: 10.16801/j.issn.1008-7303.2022.0130
    引用本文: 谭欢欢, 姜佳, 刘金亮, 张渊, 郭旭昊, 魏江桥, 钱乐, 徐建强, 刘圣明. 河南省禾谷镰孢菌对丙硫菌唑的敏感性[J]. 农药学学报, 2023, 25(2): 474-478. DOI: 10.16801/j.issn.1008-7303.2022.0130
    TAN Huanhuan, JIANG Jia, LIU Jinliang, ZHANG Yuan, GUO Xuhao, WEI Jiangqiao, QIAN Le, XU Jianqiang, LIU Shengming. Sensitivity of Fusarium graminearum to prothioconazole in Henan Province[J]. Chinese Journal of Pesticide Science, 2023, 25(2): 474-478. DOI: 10.16801/j.issn.1008-7303.2022.0130
    Citation: TAN Huanhuan, JIANG Jia, LIU Jinliang, ZHANG Yuan, GUO Xuhao, WEI Jiangqiao, QIAN Le, XU Jianqiang, LIU Shengming. Sensitivity of Fusarium graminearum to prothioconazole in Henan Province[J]. Chinese Journal of Pesticide Science, 2023, 25(2): 474-478. DOI: 10.16801/j.issn.1008-7303.2022.0130

    河南省禾谷镰孢菌对丙硫菌唑的敏感性

    Sensitivity of Fusarium graminearum to prothioconazole in Henan Province

    • 摘要: 采用菌丝生长速率法,测定了2019—2021年采自河南省11个市的278株禾谷镰孢菌Fusarium graminearum对丙硫菌唑的敏感性。结果表明:供试278株禾谷镰孢菌对丙硫菌唑的敏感频率呈单峰且近似正态分布,各菌株EC50值的范围在0.609~3.868 μg/mL之间,最大值为最小值的6.35倍,平均值为(1.741 ± 0.690) μg/mL。此外,不同年份的禾谷镰孢菌对丙硫菌唑的敏感性水平无显著差别。2020年菌株最不敏感,平均EC50值为(1.894 ± 0.652) μg/mL,2021年菌株最敏感,平均EC50值为(1.643 ± 0.701) μg/mL。不同地区的禾谷镰孢菌对丙硫菌唑的敏感性水平有显著性差异。济源市的菌株最不敏感,平均EC50值为(2.175 ± 0.632) μg/mL;开封市的菌株最敏感,平均EC50值为(1.137 ± 0.419) μg/mL;焦作市菌株间敏感性差异最大,最大值为最小值的6.21倍,平均EC50值为(2.073 ± 0.681) μg/mL,高于2019—2021年菌株敏感性的平均水平;新乡市菌株间敏感性差异最小,最大值仅为最小值的1.75倍,平均EC50值为(1.211 ± 0.349) μg/mL,低于2019—2021年菌株敏感性的平均水平。本研究通过3年敏感性监测,可为今后禾谷镰孢菌对丙硫菌唑的敏感性变化提供理论依据。

       

      Abstract: The sensitivity of Fusarium graminearum to prothioconazole was determined with 278 strains collected from 11 cities in Henan Province from 2019 to 2021 using the method of mycelial growth rate in vitro. The results showed that the sensitivity frequency of 278 F. graminearum strains to prothioconazole was a unimodal curve and presented an approximately normal distribution. The EC50 values of the strains ranged from 0.609 to 3.868 μg/mL, with the maximum value being 6.35 times the minimum value. The mean EC50 was (1.741 ± 0.690) μg/mL. In addition, the sensitivity of F. graminearum to propiconazole in different years had no significant difference. For different years, the strains collected in 2020 were the least sensitive with an average EC50 value of (1.894 ± 0.652) μg/mL, while the strains collected in 2021 were the most sensitive with an average EC50 value of (1.643 ± 0.701) μg/mL. The sensitivity of F. graminearum to prothioconazole had significant differences in different regions. The strains in Jiyuan were the least sensitive with an average EC50 value of (2.175 ± 0.632) μg/mL, while those in Kaifeng were the most sensitive with an average EC50 value of (1.137 ± 0.419) μg/mL. The F. graminearum strains from Jiaozuo were the most varied in sensitivity (EC50(Max.)/EC50 (Min.) = 6.21) with an average EC50 value of (2.073 ± 0.681) μg/mL, which was higher than the average of Henan Province. The strains from Xinxiang have the smallest differences in sensitivity (EC50 (Max.)/EC50 (Min.) = 1.75) with an average EC50 value of (1.211 ± 0.349) μg/mL, which was lower than the average in Henan Province. This study provides a theoretical basis for the sensitivity of F. graminearum to prothioconazole in the future through three-year sensitivity monitoring.

       

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