芽孢杆菌(Bacillus spp.)防治豇豆根腐病效果  

Effects of Bacillus spp. on Controlling Cowpea Root-rot Disease

作　　者：胡洪涛 朱志刚 李金泉[2] 曹春霞 邱正明[2] 姚经武 陈伟 祝花 王孝琴 

机构地区：[1]湖北省生物农药工程研究中心,武汉430064 [2]湖北省农业科学院经济作物研究所 [3]武汉市农业技术推广中心

出　　处：《长江蔬菜》2018年第20期47-49,共3页Journal of Changjiang Vegetables

基　　金：国家重点研发计划(2017YFD0201606);湖北省农业创新团队项目(2016-620-000-001-039);湖北省农业科学院基金(2016NKYJJ31);武汉市现代都市农业产业技术体系建设(HBT-17180064-180398);武汉市应用基础研究(2017020201010225)

摘　　要：采用生长抑制法,发现芽孢杆菌(Bacillus spp.)对豇豆根腐菌(Fusarium spp.)具有较好的抑制作用,其代谢产物对豇豆根腐菌的抑制中浓度(EC50)为24.4 mg/L。采用拌种法,测定了芽孢杆菌对豇豆根腐病的室内预防效果,其中以药种比100 mL∶1 kg的防效最高,为92.1%,与对照30%噁霉灵水剂防效相当。田间灌根试验结果显示,芽孢杆菌发酵液稀释50倍,对豇豆根腐病的防效达到74.9%,与对照30%噁霉灵水剂防效相当。We found that Bacillus spp. had good inhibitory effect on controlling cowpea Fusarium spp. by using growth inhibition method, and the EC50 value of its metabolite to cowpea Fusarium spp. was 24.4 mg/L. We measured the indoor control effect to cowpea Fusarium spp. by using seed dressing method, and it had the highest control effect(92.1%) when the ratio of pesticide and seed were 100 mL ∶1 kg, which had the same control effect with the control treatment(30%hymexazol water aqua). The results of field irrigation root test showed that the control effect to cowpea Fusarium spp. could reach to 74.9% by using fermentation fluid of Bacillus spp. by 50 times diluents, which had the same control effect with the control treatment(30% hymexazol water aqua).

关 键 词：生物防治 豇豆 根腐病 田间试验 芽孢杆菌 土传性病害 

分 类 号：S643.4[农业科学—蔬菜学]