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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (4): 283-287.doi: 10.11924/j.issn.1000-6850.2013-1506

所属专题： 小麦

• 植物保护 农药 • 上一篇    下一篇

氰烯菌酯与己唑醇对小麦纹枯病菌联合毒力测定

耿忠义 张立霞 辛相启 赵京岚 赵玖华   

  • 收稿日期:2013-05-29 修回日期:2013-07-06 出版日期:2014-02-05 发布日期:2014-02-05
  • 基金资助:
    “十二五” 国家科技支撑计划课题 “山东省主要旱粮作物重大病虫害防控技术研究与集成示范” (2012BAD19B04-09)。

Studies on the Synergistic Effects of JS399-19 and Hexaconazole to Rhizoctonia cerealis and R. solani

  • Received:2013-05-29 Revised:2013-07-06 Online:2014-02-05 Published:2014-02-05

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摘要： 为明确氰烯菌酯与己唑醇不同比例混配对小麦纹枯病菌联合作用类型，采用菌丝生长速率法测定了氰烯菌酯与己唑醇及其5种配比对小麦纹枯病菌的毒力。结果表明，氰烯菌酯与己唑醇及其1:5、1:7、1:9、1:11、1:13等混配组合对禾谷丝核菌的EC50分别是0.212、0.339、0.227、0.207、0.213、0.315、0.320 mg/L，5种混配组合对禾谷丝核菌的增效系数(SR)分别是1.35、1.52、1.51、1.02、1.02；对立枯丝核菌的EC50分别是0.452、2.984、1.091、1.139、1.217、1.280、1.781 mg/L，增效系数(SR)分别是1.41、1.54、1.57、1.59、1.20；氰烯菌酯与己唑醇1:(7~9)混配对小麦纹枯病菌有增效作用。

关键词: 主要组分, 主要组分

Abstract: In order to clarify the synergistic effects of mixed JS399-19 and Hexaconazole to Rhizoctonia cerealis and R. solani and to find the best mixed ratio of two preparations, the JS399-19 and Hexaconazole and their mixtures-made up by mixing the two pesticides in five different ratios, on Rhizoctonia cerealis and R. solani were tested by mycelial growth rate method. Experimental results demonstrated that EC50 of JS399-19, Hexaconazole, and their five different ratios to Rhizoctonia cerealis were 0.212, 0.339, 0.227, 0.207, 0.213, 0.315, 0.320 mg/L. The efficiency coefficients of the five different ratios to Rhizoctonia cerealis were 1.35, 1.52, 1.51, 1.02, 1.02. Experimental results demonstrated that EC50 of JS399-19, Hexaconazole, and their five different ratios to R. solani were 0.452, 2.984, 1.091, 1.139, 1.217, 1.280, 1.781 mg/L. The efficiency coefficients of the five different ratios to R. solani were 1.41, 1.54, 1.57, 1.59, 1.20. The mixed ratio of two preparation 1:(7-9) to Rhizoctonia cerealis and R. solani had synergistic effects.