微生物源脂肽粗提物对克菌丹和代森锰锌增效活性  

Synergistic Activity of Crude Extracts of Microbial Lipopeptides on Captan and Mancozeb

作　　者：余利 王锦程 谢亚杰 黄伟东 段海明 YU Li;WANG Jincheng;XIE Yajie;HUANG Weidong;DUAN Haiming(College of Agriculture,Anhui Science and Technology University,Fengyang 233100,China)

机构地区：[1]安徽科技学院农学院,安徽凤阳233100

出　　处：《安徽科技学院学报》2022年第1期38-43,共6页Journal of Anhui Science and Technology University

基　　金：安徽省高校自然科学研究项目(KJ2020A0067);作物抗逆育种与减灾国家地方联合工程实验室开放基金(NELCOF20190102);安徽省大学生创新创业训练计划项目(S202010879307)。

摘　　要：目的:阐明解淀粉芽孢杆菌产脂肽粗提物提高克菌丹和代森锰锌对玉米大斑病菌抑制活性。方法:采用Wadley公式法,测定对玉米大斑病菌抑制活性。结果:脂肽粗提物和克菌丹、代森锰锌对玉米大斑病菌的EC_(50)分别为0.23μL/mL、5.78μg/mL和8.04μg/mL;脂肽粗提物与克菌丹和代森锰锌质量比为1∶100和1.5∶100时具有较强的增效活性,增效系数SR达1.78和1.74。结论:可为玉米大斑病的可持续防控提供参考和借鉴。Objective:To explore the inhibitory effect of crude lipopeptide extracts of Bacillus amyloliquefaciens SJ06 and its synergism with fungicides on Exserohilum turcicum.Methods:The antifungical activity of the mixture was determined by Wadley formula.Results:The results showed that the EC_(50)of crude lipopeptide extracts,captan and mancozeb were 0.23 μL/mL,5.78 μg/mL and 8.04 μg/mL,respectively.The results of Wadley formula showed that the crude lipopeptide extracts had strong synergistic activity when the mass ratio of crude lipopeptide extracts to captan and mancozeb was 1∶100 and 1.5∶100,and the synergistic coefficient was 1.78 and 1.74,respectively.Conclusion:This study can provide theoretical guidance for sustainable control of maize leaf blight.

关 键 词：玉米大斑病 解淀粉芽孢杆菌 脂肽粗提物 代森锰锌 增效作用 

分 类 号：S482.2[农业科学—农药学]