| 杨党伟1, 郭梅燕2, 蒋水萍1, 马毅辉1*.新型吡唑-3-甲酸酯类化合物HNNK-1对小麦全蚀病菌的毒力及防治效果[J].植物保护,2022,48(4):358-362. |
| 新型吡唑-3-甲酸酯类化合物HNNK-1对小麦全蚀病菌的毒力及防治效果 |
| Toxicity and control efficacy of a novel pyrazole-3-carboxylate compound HNNK-1 against Gaeumannomyces graminis var. tritici |
| 投稿时间：2021-04-23 修订日期：2021-08-03 |
| DOI：10.16688/j.zwbh.2021251 |
| 中文关键词: 吡唑-3-甲酸酯类化合物 HNNK-1 小麦全蚀病菌 毒力测定 防治效果 |
| 英文关键词:pyrazole-3-carboxylate compound HNNK-1 Gaeumannomyces graminis var. tritici toxicity control efficacy |
| 基金项目:河南省农业科学院优秀青年科技基金（2016YQ16） |
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| 中文摘要: |
| 为了研究新型吡唑-3-甲酸酯类化合物HNNK-1对小麦全蚀病的防治效果, 采用菌丝生长速率法测定了其对小麦全蚀病菌的毒力; 并通过拌种处理在温室和田间测定了其对小麦全蚀病的防治效果; 同时观察了HNNK-1拌种对小麦生长的影响。菌丝生长速率法测定结果表明, HNNK-1对小麦全蚀病菌的EC50为0.28 mg/L, 低于硅噻菌胺的EC50（0.58 mg/L）; 盆栽试验结果表明, 用50 g/L HNNK-1 SC拌种（药种质量比1∶3 000）后对小麦全蚀病的防效为60.10%; 对小麦株高、根长等生长指标无显著影响。田间药效试验表明, 用50 g/L HNNK-1 SC拌种（药种质量比1∶3 000）对小麦全蚀病的防效为73.13%（开封）和71.15%（周口）。HNNK-1可以有效控制田间小麦全蚀病发生和危害。 |
| 英文摘要: |
| The aim of this study was to investigate the field control effect of a novel pyrazole-3-carboxylate compound HNNK-1 on take-all disease of wheat. The antifungal activity of HNNK-1 against Gaeumannomyces graminis var. tritici (Ggt) was examined in laboratory with mycelial growth rate method, and the control efficacy of HNNK-1 against wheat take-all disease and its safety to wheat seedling were also evaluated. The EC50 value of HNNK-1 in inhibiting the growth of Ggt was 0.28 mg/L, lower than that of silthiopham (0.58 mg/L). The control efficacy of seed dressing with HNNK-1 50 g/L SC (1∶3 000) was 60.10% in pot experiment. Seed dressing with HNNK-1 50 g/L SC (1∶3 000) had no obviously negative effect on the growth of wheat through measuring plant height and root length. The field efficacy of seed dressing with HNNK-1 50 g/L SC (1∶3 000) was 73.13% in Kaifeng city and 71.15% in Zhoukou city, indicating HNNK-1 could provide effective control against wheat take-all disease. |
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