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[目的]避免和延缓番茄灰霉病菌对啶酰菌胺抗药性的产生。[方法]采用菌丝生长速率法测定辽宁省番茄灰霉病菌对啶酰菌胺的敏感性,明确不同地区番茄灰霉病菌对啶酰菌胺敏感性差异的分布。[结果]辽宁省不同番茄灰霉病菌菌株的EC_(50)值分布在0.080 0~7.787 2μg/ml,敏感性最低和最高的菌株EC50值相差97.34倍。将符合正太分布的158株番茄灰霉病菌的平均EC_(50)值1.973 1μg/ml初步定为辽宁省番茄灰霉病菌对啶酰菌胺的敏感基线。[结论]开展番茄灰霉病菌对啶酰菌胺抗药性风险评估很重要。
[Objective] To avoid and delay the resistance of Botrytis cinerea to boscalid. [Method] The mycelial growth rate method was used to determine the susceptibility of Botrytis cinerea to boscalid in Liaoning Province. The distribution of boscalid sensitivity to boscalid in different regions was clarified. [Result] The EC 50 values of different Botrytis cinerea isolates in Liaoning province were between 0.080 0 and 7.787 2 μg / ml, with a difference of 97.34 times between the lowest and highest sensitive isolates. The average EC50 (50) 1.973 1 μg / ml of 158 B. cinerea strains that fit the positive distribution was initially determined as the sensitive baseline for boscalid in Liaoning Province. [Conclusion] To evaluate the risk assessment of boscalid resistance in Botrytis cinerea was very important.