【摘要】 BRF - 1是从大豆根际分离获得的生防细菌 (Bacillusspp .)。平板对峙培养结果表明 ,该菌对大豆根腐病 4种主要病原菌大豆尖孢镰刀菌 (Fusariumoxysporum)、腐霉菌 (Pythiumspp .)、立枯丝核菌 (Rhizoctoniasolani)和茄腐镰刀菌 (Fusariumsolani )具有很强的拮抗作用。进一步盆栽试验发现 ,BRF - 1的不同处理不仅可以有效抑制由尖孢镰刀菌引起大豆根腐病发生 ,而且还具有促进幼苗生长的作用 ,是一株极有希望的生防微生物。更多还原

【Abstract】 Organism BRF-1(Bacillus spp. ) was isolated from soybean rhizosphere. Dual-culture tests showed that it had strong antifungal activity to 4 pathogens of soybean root-rot disease. Further pot experiment indicated it would be a hopeful bio-control strain because it was not only to inhibit the soybean root-rot disease caused by Fusarium oxysporum but also promoted soybean seedling.更多还原