防病促生枯萎病拮抗菌“98-I”对4种枯萎病防治效果研究

The prevention and control effects of the growth-promotion antagonistic bacterium“98-I”on 4 Fusarium wilts

  • 摘要: 经8年系统试验研究从330个细菌菌株中筛选出1株防病促生枯萎病拮抗菌“984”,经鉴定属蜡质芽孢杆菌。该菌对黄瓜枯萎病、西瓜枯萎病、青椒枯萎病和番茄枯萎病4种土传病害均有显著防治效果,其平皿孢子萌发抑制率分别为79.2%、75.1%、72.3%和95.7% ,且该菌对多种蔬菜有促生和促进种子发芽功效。

     

    Abstract: A growth-promoting antagonistic bacteria strain “98-I”against Fusarium wilt,selected from 330 strains and identified as Bacillus cereus.can effectively inhibit the soil-born Fusarium pathogens.It presents a notable efficiency in controlling 4 Fusarium wilt diseases including cucumber Fusarium wilt(Fusarium oxysporum f.sp.cucumerinum),wa-termelon Fusarium wilt(F.O.f.sp.ni'oeum),paprica Fusarium wilt(F.O.f.sp.Vasinfectum ),and tomato Fusarium wilt(F.0.f.sp.1ycopersici)with the corresponding spore germination inhibition rate of 79.2%,75.1%,72.3% and 95.7% by petri disk test.The bacterium can also promote the vegetable growth and seeds germ ination.

     

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