不同生物药剂对辣椒主要病原菌的抑菌效果研究  

Study on Bacteriostatic Effect of Different Biological Agents on Major Pathogenic Bacteria in Capsicum

作　　者：王美丽 郑荣 赵娟 张付平 WANG Meili;ZHENG Rong;ZHAO Juan;ZHANG Fuping(Jiuquan Academy of Agricultural Sciences,Jiuquan Gansu 735000,China)

机构地区：[1]酒泉市农业科学研究院,甘肃酒泉735000

出　　处：《寒旱农业科学》2024年第8期769-773,共5页Journal of Cold-Arid Agricultural Sciences

基　　金：甘肃省青年科技基金(23JRRF0003);陇原青年创新创业人才项目(2021LQGR70)。

摘　　要：为筛选可兼防辣椒疫病、根腐病及枯萎病的高效生物杀菌剂,采用室内抑菌试验,测定哈茨木霉、枯草芽孢杆菌、荧光假单胞杆菌及医植酵素等4种生物杀菌剂和化学药剂多菌灵分别在高、中、低3种浓度下对辣椒疫病、根腐病与枯萎病病原菌的抑制效果。结果表明,荧光假单胞杆菌与哈茨木霉可兼防辣椒疫病、根腐病及枯萎病;在药剂推荐浓度下,荧光假单胞杆菌对辣椒疫病、根腐病、枯萎病抑菌率分别为83.11%、89.81%、78.80%,哈茨木霉分别为88.39%、74.63%、89.68%,这两种药剂可作为推荐用药。In order to screen effective biocides that can also prevent phytophthora blight,root rot and fusarium wilt in capsicum,the inhibitory effects of Trichoderma harzianum,Bacillus subtilis,Pseudomonas fluorescens,Phytophthora enzymes and the chemical agent Carbendazim on phytophthora blight,root rot and fusarium wilt of capsicum were measured at high,medium and low concentrations in laboratory.The results showed that Pseudomonas fluorescens and Trichoderma harzianum could simultaneously prevent phytophthora blight,root rot and fusarium wilt of capsicum.With the decrease of concentration,the bacteriostatic effect of 5 tested agents showed a decreasing trend.At the recommended concentrations,the inhibitory rates of Pseudomonas fluorescens against phytophthora blight,root rot disease and fusarium wilt were 83.11%,89.81%and 78.80%,respectively whereas those in Trichoderma harziana were 88.39%,74.63%and 89.68%,respectively.These two agents can be used as recommended drugs.

关 键 词：辣椒 疫病 根腐病 枯萎病 病原菌 生物防治 

分 类 号：S641.3[农业科学—蔬菜学]