作者
SAEED AHMAD Asad, ASGHARI Bano, MUHAMMAD Farooq, MUHAMMAD Aslam, AFTAB Afzal
发表日期
2004
期刊
International Journal of Agriculture and Biology
卷号
6
期号
5
页码范围
837-843
简介
The present investigation was aimed at determining the effects of biofertilizers and their pure cultures on phytohormones production, plant growth and yield. Changes in the level of phytohormones were also determined in plant leaves inoculated with biofertilizers and pure cultures used alone or in co-inoculation. In pot experiment, three biofertilizers (Biopower, Biozote & Grasimi Tika) were applied to one group of plants as seed coating treatment. To a second group, broth cultures (10 days after inoculation) of the rhizobial strains were applied to seedlings (7 days after germination). Biopower resulted in maximum IAA and GA content in plant leaves than Biozote and Grasimi Tika. IAA and GA content of Biopower were higher than that of Biozote and Grasimi Tika. Biopower inoculation also resulted in an increase in nodule numbers, root/shoot length, seed weight and yield while, Biozote treatment resulted in yield that was slightly lower than Biopower, but was at par with all other treatments. Among the rhizobial strains, MN-Slow produced maximum IAA and GA in broth culture and minimum IAA and GA were observed in strain CA-18. Co inoculation of rhizobium strains showed better results than applied singly. IAA and GA contents of leaves of treated plants were also recorded to be maximum in co-inoculation treatments.
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