【摘要】 从80多个枯草杆菌（Bacillus subtilis Ch）拮抗菌株中选出3个菌株进行田间试验,结果B₁菌株的防病效果最好。根据1985～1987年的田间试验,B₁菌株的防病效果可达64％～76％,大白菜贮藏4个月后的防病效果达80％。温室和大田试验表明,浸种处理的大白菜在苗期有显著促进生长作用,收获期产量比对照提高14.9％。跟踪检测结果,B₁菌株可以在大白菜幼根上定殖,减少软腐细菌从根系侵入,厌氧处理后能延缓发病。更多还原

【Abstract】 Three isolates were selected from 80 antagonistic bacteria for field trials. The results showed that B₁ （Bacillus subtilis） was the best of them on control of soft-rot of Chinese cabbage. Based on field tests from 1985～1987 control effects ranged from 64%～76% and after four months of cold storage might reach 80%. Greenhouse and field experiments showed the seedling growth by seed bacteriozation was significantly promoted as compared with the control. By trace plating B₁ could colonize the rhizosphere of seedlings of Chinese cabbage, suppress the pathogenic bacteria invading roots and delay soft rot occurence in plants by anaerobic treatment.更多还原