IAA促生菌的分离鉴定及对烟草种子萌发与烟苗生长发育的影响

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微生物广泛存在于自然环境中,其活动影响着土壤物质转化和植物生长,在农业可持续发展中发挥重要作用。烟草是我国经济发展的重要支柱产业,为避免化肥破坏利用传统土壤和污染环境,发展以微生物农业为核心的“白色农业”十分重要。本试验以传统培养的方式分离、16SrDNA的方法鉴定延边地区烟草内生和根际细菌,研究品种与地区之间微生物的多样性。以Salkowski比色法筛选出具有产IAA能力的促生菌株,并对其液体培养基进行优化,研究细菌间互作对烟草种子萌发和生长的影响,为掌握延边地区可利用的促生菌及复合菌肥的研制,以
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