3种微生物菌剂对新疆棉花主要病害田间防效评价  

Evaluation on the field efficacy of three microbial agents against Xinjiang cotton diseases

作　　者：戴爱梅 许秀 霍瑞 李杰 马腾飞 李进[4] 娄善伟 DAI Ai-mei;XU Xiu;HUO Rui;LI Jie;MA Teng-fei;LI Jin;LOU Shan-wei(Bortala Mongolian Autonomous Prefecture Agricultural Technology Extension Center,Bole 833400,Xinjiang,China;Wuhan Kermel Bio-tech Co.,Ltd,Wuhan 430070,China;National Engineering Research Center of Cotton,0rimqi 830091,China;Institute of Nuclear Technology and Biotechnology,Xinjiang Academy of Agricultural Sciences/Key Laboratory of Crop Ecophysiology and Farming System in Desert Oasis Region,Ministry of Agriculture and Rural Affairs,Orimqi 830091,China)

机构地区：[1]博尔塔拉蒙古自治州农业技术推广中心,新疆博乐833400 [2]武汉科诺生物科技股份有限公司,武汉430070 [3]国家棉花工程技术研究中心,乌鲁木齐830091 [4]新疆农业科学院核技术生物技术研究所/农业农村部荒漠绿洲作物生理生态与耕作重点实验室,乌鲁木齐830091

出　　处：《农药》2022年第7期526-528,541,共4页Agrochemicals

基　　金：新疆农业科学院青年科技骨干创新能力培养项目(xjnkq-2021008);棉花群体调控创新团队项目(nkyzztd-002)。

摘　　要：[目的]评价3种微生物菌剂对棉花出苗的影响及立枯病和黄萎病的田间防治效果,筛选出苗率高、防病效果好的微生物菌剂。[方法]以清水为空白对照(CK),10亿CFU/g枯草芽孢杆菌可湿性粉剂为药剂对照,采用拌种法进行田间药效试验。[结果]各药剂处理对棉花出苗产生不同程度的抑制作用,较对照相比出苗率下降2.7%~26.7%,1000亿CFU/g解淀粉芽孢杆菌种子处理可分散粉剂(KN-527)处理与对照出苗率无差异。棉花苗期立枯病病株率在2.27%~15.33%之间,各药剂处理防治效果为25.83%~89.02%,KN-527和200亿CFU/g多粘类芽孢杆菌种子处理可分散粉剂(KN-03)处理防治效果显著高于其他药剂处理。各药剂处理后不同时期棉花黄萎病病情指数均显著下降,黄萎病防治效果在10.68%~91.30%之间,KN-527处理防治效果优于其他药剂。[结论]1000亿CFU/g解淀粉芽孢杆菌种子处理可分散粉剂(KN-527)是防治棉花立枯病和黄萎病的理想微生物菌剂。[Aims] This study aims to evaluate the effect of three microbial agents on cotton seedling emergence and the field control effect against damping off diease and Verticillium wilt, and to screen out the microbial agents with high seedling emergence rate and better disease control effect. [Methods] We carried out field efficacy trials by seed mixing method, water was used as blank control, and 1 billion CFU/g Bacillus subtilis wettable powder was used as control.[Results] The cotton emergence rate decreased by 2.7%-26.7% compared with CK, and there was no difference between 100 billion CFU/g of Bacillus amyloliquefaciens dispersible powder(KN-527) treatment and CK. The disease rate of cotton seedling was 2.27%-15.33%, and the control effect of each treatment was 25.83%-89.02%. The control effect of KN-527 and 20 billion CFU/g of B. polymyxae dispersible powder(KN-03) was significantly higher than that in other treatments. The disease index of Verticillium wilt decreased significantly in different periods after treatment,and the control effect ranged from 10.68% to 91.30%. The control effect of KN-527 treatment was better than other agents. [Conclusions] 100 Billion CFU/g of B. amyloliquefaciens(KN-527) was an ideal microbial agent for control of damping off diease and Verticillium wilt.

关 键 词：棉花 微生物菌剂 立枯病 黄萎病 防治效果 

分 类 号：S482.2[农业科学—农药学]