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杀菌剂对毛壳核腔菌的抑制效果

Gansu Agricultural Science and Technology(2021)

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Abstract
毛壳核腔菌[Pyrenophora chaetomioides(synonym:Drechslera avenae)]是一种广泛分布于世界各燕麦产区的病原真菌,可为害燕麦的叶片和小穗,降低燕麦产量和饲草品质.采用含药平板法测定了8种杀菌剂(15%三唑酮可湿性粉剂、75%百菌清可湿性粉剂、50%多菌灵可湿性粉剂、70%代森锰锌可湿性粉剂、50%速克灵可湿性粉剂、10%苯醚甲环唑水分散粒剂、430 g/L戊唑醇悬浮剂和400 g/L氟硅唑乳油)对毛壳核腔菌(菌株ASA-11和ASA-13)的抑菌效果.结果表明,在试验浓度下,8种供试杀菌剂对毛壳核腔菌菌丝生长均具有不同程度的抑制效果,其中70%代森锰锌可湿性粉剂500倍液,10%苯醚甲环唑水分散粒剂1000倍液、5000倍液和400 g/L氟硅唑乳油5000倍液、10000倍液的抑菌效果最好,均达100%;50%多菌灵可湿性粉剂500倍液的抑菌效果最差,仅为40.77%.
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