摘要
非洲菊根腐病是一种难以防治的真菌性土传病害,在非洲菊生产中危害严重。为有效防治非洲菊根腐病,采用杯碟法测定了枯草芽孢菌Bv17对非洲菊根腐病的抑菌作用,并进行枯草芽孢菌Bv17防治非洲菊根腐病的室内盆栽试验。结果表明:枯草芽孢杆菌Bv17菌液对非洲菊根腐病两种病原菌隐地疫霉菌和腐皮镰刀菌均有较好的抑制效果;室内盆栽试验中,枯草芽孢杆菌Bv17不同浓度处理均可大幅度地降低非洲菊根腐病的病情指数,具有良好的防治效果。在供试浓度范围内枯草芽孢杆菌Bv17对非洲菊根腐病的相对防效均达70%以上,浓度为5×10^7 cfu·mL^-1时防治效果最好,病情指数为2.50,相对防效高达97.32%。
The root rot of Gerbera jamesonii was a fungal soil-borne disease which was difficult to control and a serious hazard in Gerbera production.In order to control root rot of Gerbera jamesonii,the bacteriostatic effect of Bacillus subtilis Bv17 on root rot of Gerbera jamesonii was measured by cylinder plate method,and the indoor pot experiment of Bacillus subtilis Bv17 on the control of root rot of Gerbera jamesonii was carried out.The results showed that the bacterial solution of Bacillus subtilis Bv17 had a good inhibitory effect on two pathogens of Phgtophtnora Cryptogea and Fusarium solani.In the indoor pot experiment,different concentrations of Bacillus subtilis Bv17 could significantly reduce the disease index of root rot of Gerbera jamesonii,which had a good control effect.The relative control effect of Bacillus subtilis Bv17 on root rot of Gerbera jamesonii was more than 70%in the range of test concentration,and the control effect was the best when the concentration was 5×10^7 cfu·mL^-1,the disease index was 2.50,and the relative control effect was as high as 97.32%.
作者
姚凤琴
林发壮
陈昌铭
林辉锋
夏朝水
钟琳珊
YAO Feng-qin;LIN Fa-zhuang;CHEN Chang-ming;LIN Hui-feng;XIA Chao-shui;ZHONG Lin-shan(Sanming Research Institute of Agricultural Science,Sanming,Fujian 365509,China)
出处
《福建农业科技》
2019年第12期55-59,共5页
Fujian Agricultural Science and Technology
基金
福建省科技星火计划项目(2018S0031)
2019年度中央引导地方科技发展专项资金项目(2019L3010033)
关键词
非洲菊根腐病
枯草芽孢杆菌
防治效果
Gerbera jamesonii root rot
Bacillus subtilis
Control effect
