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Utility of phyllosphere N2-fixing micro-organisms in the improvement of crop growth

II. Wheat

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Summary

Five highly active N2-fixing strains of Klebsiella isolated from the phyllosphere of tropical plants, KUPBR1, KUPBR2, KUPM, KUP4 and KUP6 along withAzotobacter vinelandii OP,A. chroococcum G40 andDerxia gumnosa were sprayed on the foliage of a high yielding wheat cultivar, Kalyansona. The strains of Klebsiella enhanced dry wt., chrorophyll and nitrogen content, and 1000 grain weight. Grain yield in inoculated plants varied between 19.9 and 25.09 quintals ha−1 against 24.34 quintals with urea. Best results were obtained with KUP4 which when applied at half dose was as effective as 52.5 kg Urea-N ha−1. Azotobacter and Derxia only slightly improved growth and nitrogen content of grain or straw.

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Author notes

  1. B. Sen Gupta

    Present address: Bejoy Narayan Mahavidyalaya, Itachuna, Hoogly, India

Authors and Affiliations

  1. Department of Botany, University of Kalyani, 741235, Kalyani, India

    B. Sen Gupta & S. P. Sen

Authors
  1. B. Sen Gupta
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  2. S. P. Sen
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Sen Gupta, B., Sen, S.P. Utility of phyllosphere N2-fixing micro-organisms in the improvement of crop growth. Plant Soil 68, 69–74 (1982). https://doi.org/10.1007/BF02374728

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  • DOI: https://doi.org/10.1007/BF02374728

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