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农学学报

农学学报 ›› 2011, Vol. 1 ›› Issue (4): 32-36.

• 植物保护 • 上一篇    下一篇

咪鲜胺与噁霉灵及其混配对串珠镰刀菌和立枯丝核菌的影响

耿忠义 赵京岚 任勇攀 周国 孙国波   

  • 收稿日期:2011-05-13 修回日期:2011-06-11 出版日期:2011-06-15 发布日期:2011-06-15

Studies on the Effects of Prochloraz and Hymexazol to Fusarium moniliforme and Rhizoctonia solani

  • Received:2011-05-13 Revised:2011-06-11 Online:2011-06-15 Published:2011-06-15

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摘要：

为明确咪鲜胺与噁霉灵及其混配对串珠镰刀菌和立枯丝核菌的影响，采用菌丝生长速率法测定了咪鲜胺与噁霉灵及其5种配比对2种病菌的毒力。结果表明，咪鲜胺与噁霉灵及其1:1、1:2、1:4、1:6、1:8等混配组合对串珠镰刀菌的EC50分别是0.0197、69.492、0.021、0.028、0.082、0.163、0.215 mg/L，对立枯丝核菌的EC50分别是0.247、25.140、0.444、0.469、1.041、1.495、2.012 mg/L；5种混配组合对串珠镰刀菌的增效系数（SR）分别是1.85、2.14、1.20、0.84、0.82，对立枯丝核菌的增效系数（SR）分别是1.10、1.55、1.14、1.09、1.02。咪鲜胺对2种病菌的毒力均高于噁霉灵，咪鲜胺与噁霉灵1:2配比对串珠镰刀菌、立枯丝核菌均有显著增效作用。

关键词: RP-HPLC, RP-HPLC, 柚皮, 柚皮苷, 橙皮苷

Abstract:

The objective of this study were to to clarify the synergistic effects of mixed Prochloraz and hymexazol to Fusarium moniliforme, Rhizoctonia solani and to find the best mixed ratio of two preparations. The Prochloraz and hymexazol and their mixtures-made up by mixing the two pesticides in five different ratios, on Fusarium moniliforme and Rhizoctonia solani were tested by mycelial growth rate method. To Fusarium moniliforme, EC50 of Prochloraz, Hymexazol, the mixed ratio of two preparations1:1, 1:2, 1:4, 1:6, 1:8 were different, 0.0197, 69.492, 0.021, 0.028, 0.082, 0.163, 0.215 mg/L for each. To Rhizoctonia solani, EC50 of each was 0.247, 25.140, 0.444, 0.469, 1.041, 1.495, 2.012 mg/L. For Fusarium moniliforme, the efficiency coefficient of 5 kinds of mixed ratio of two preparations (SR) were 1.85, 2.14, 1.20, 0.84, 0.82, For Rhizoctonia solani the efficiency coefficient of each was 1.10, 1.55, 1.14, 1.09, 1.02. Prochloraz were higher than Hymexazol on the virulence of 2 bacteria. Prochloraz mixed with hymexazol in 1:2 had significant synergism to Fusarium moniliforme and Rhizoctonia solani than used alone.