【摘要】 对已筛选到对烟草赤星病病原Alternaria alternata具有优良拮抗效果的细菌菌株XL12、YN3、N2、H14分别经24h、48h、72h、96h液体发酵。取发酵液,在12h进行抑制病原孢子萌发试验测定,对不同处理的发酵液的抑制效果进行比较。试验结果表明,XL12菌株对烟草赤星病病原孢子的抑制作用大于其他3种,其发酵48h抑制效果最为显著。更多还原

【Abstract】 XL12,YN3,N2,H14 were selected for repressing the pathogen of tobacco brown spot disease.After fermenting for 24h,48h,72h,96h and taking those fermentation fluid treatmented as 200×,400× to inhibit the sprout rate of spores after 12h.The results indicated that XL12 was superior to others and fermented for 48h has the obvious inhibition.更多还原