摘要
[目的]明确供试菌株解淀粉芽孢杆菌SY-FX-69的离体杀菌活性以及活体盆栽的生物活性。[方法]采用离体抑制菌丝生长速率法、活体盆栽喷雾等方法对菌株SY-FX-69的生物活性进行研究。[结果]供试菌株SY-FX-69的杀菌谱较宽,对水稻纹枯病原菌(Rhizoctonia solani)、棉花黄萎病原菌(Verticillium dahliae)、番茄早疫病原菌(A lte rnaria solani)和黄瓜炭疽病原菌(Colletotric hum lagenarium)的离体防效分别为86.93%、81.43%、82.93%和83.78%,且活体盆栽试验对水稻纹枯病的防效达到96.88%,对玉米锈病防效达到85.56%。[结论]供试菌株SY-FX-69具有较宽的杀菌谱,且对水稻纹枯病和玉米锈病的保护活性较好。
[Aims] In vitro and in vivo bioactivities of Bacillus amyloliquefaciens strain SY-FX-69 were studied in this paper. [Methods] The biological activity of the strain SY-FX-69 was determined by methods of mycelial growth method and potted spray method. [Results] The results indicated that the efficacies of the strain SY-FX-69 against Rhizoctonia solani, Verticillium dahliae, Colletotrichum lagenarium and Alternaria solaniin vitro were 86.93, 81.43, 82.93 and 83.78%, respectively. Furthermore, the efficacies of the strain SY-FX-69 against rice sheath blight （Rhizoctonia solani） and corn rust （Puccinia sorghi Schwin） in vivo were 96.88 and 85.56%, separately. [Conclusions] The strain SY-FX-69 exhibits high efficacy against many pathogens in vitro and a protective effect on the disease of rice sheath blight and corn rust in vivo.
出处
《农药》
CAS
CSCD
北大核心
2015年第2期136-138,共3页
Agrochemicals
关键词
解淀粉芽孢杆菌
生物活性
生物防治
Bacillus amyloliquefaciens
bioactivity
biological control
