几种微生物菌剂对烟草白粉病的抑制效应  

Inhibitory Effects of Several Kinds of Microbial Agents on Tobacco Erysiphe cichoracearum

作　　者：张涛[1] 雷帮星[2] 何劲[3] 文晓鹏[1] 谯利军 

机构地区：[1]贵州大学农业生物工程研究院、生命科学学院,山地植物资源保护与种质创新省部共建教育部重点实验室,贵州贵阳550025 [2]贵州大学教育部西南药用生物资源工程研究中心,贵州贵阳550025 [3]贵阳学院,贵州贵阳550005

出　　处：《贵州农业科学》2016年第9期60-62,共3页Guizhou Agricultural Sciences

基　　金：贵州省科学技术基金项目“烟草白粉病生物防治及其田间关键配套技术”[中烟黔科(2014)2]

摘　　要：为烟草白粉病的生物防治及生物农药开发提供理论依据,采用喷雾法研究GuBC-1、GuBC-2、GuBC-3、GuBC-4、GuBC-5、GuBC-6和GuBC-7等7种细菌菌株发酵液对烟草白粉病的防治效果。结果表明:菌株GuBC-1和GuBC-2对烟草白粉病的防治效果最好,病情指数分别为51.29和49.67,显著低于清水对照(95.95);除GuBC-6外,其他6个菌株对烟草株高、鲜重和干重均有促进作用,其中,GuBC-1处理促生作用最明显,株高、鲜重和干重分别为11.3cm、7.65g和0.95g,分别比对照提高44.2%、74.9%和63.2%。菌株GuBC-1可作为生防菌开发和应用。In order to provide theoretical basis for the biological control and biological pesticide development on tobacco powdery mildew,the fermentation broth of seven trains i.e.GuBC-1,GuBC-2,GuBC-3,GuBC-4,GuBC-5,GuBC-6and GuBC-7 were sprayed on tobacco control E.cichoracearum.Results：Strains GuBC-1and GuBC-2had the best control effects,and the disease index were respectively51.29 and 49.67,significantly lower than water（ck）.Except GuBC-6,all the other six treatments promoted plant height,fresh weight and dry weight of tobacco.Meamwhile treatment GuBC-1had the best promoting effect and the growth indicators were respectively 11.3cm,7.65 g and 0.95 g,which were44.2%,74.9%and 63.2% higher than that of the control respectively.Strain GuBC-1can be used as biocontrol bacteria for the development and application.

关 键 词：烟草白粉病 生物防治 病情指数 生长指标 

分 类 号：S482.292[农业科学—农药学]