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Effect of zinc-phosphate-solubilizing bacterial isolates on growth of Vigna radiata

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Abstract

This study examined the effects of five bacterial isolates (U, 8M, 36, 102, and 111) on the growth of Vigna radiata. Bacterial isolates were applied alone, or together with zinc phosphate [Zn3(PO4)2·4H2O]. The maximum increase in all plant growth parameters was seen when seedlings were inoculated with isolate 102. Isolate 36 with 1 mM zinc phosphate showed the maximum increase in seedling length (35.1 cm) as compared to controls. Isolate 111 was the best phosphate solubilizer, releasing 13.29 ppm phosphorous (P) in soil when used in combination with 1 mM salt, whereas isolate 36 showed maximum uptake of P, leaving only 4.63 ppm in soil.

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Acknowledgment

This research work was supported financially by the Higher Education Commission of Pakistan.

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Authors and Affiliations

  1. Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, Lahore, Pakistan

    Uzma Iqbal, Nazia Jamil, Iftikhar Ali & Shahida Hasnain

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  1. Uzma Iqbal
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  2. Nazia Jamil
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  3. Iftikhar Ali
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  4. Shahida Hasnain
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Correspondence to Nazia Jamil.

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Iqbal, U., Jamil, N., Ali, I. et al. Effect of zinc-phosphate-solubilizing bacterial isolates on growth of Vigna radiata . Ann Microbiol 60, 243–248 (2010). https://doi.org/10.1007/s13213-010-0033-4

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  • DOI: https://doi.org/10.1007/s13213-010-0033-4

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