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Harwani, D. (2006) Biodiversity and Efficiency of Bradyrhizobium Strains Are Arbuscular Mycorrhizoal Fungi of Soybean Cultivars Grown in Haroti Region of Rajasthan. PhD Thesis, Maharshi Dayanand Saraswati University, Ajmer.

has been cited by the following article:

  • TITLE: Phenotypic, Stress Tolerance and Plant Growth Promoting Characteristics of Rhizobial Isolates from Selected Wild Legumes of Semiarid Region, Tirupati, India

    AUTHORS: Y. Bhargava, J. S. R. Murthy, T. V. Rajesh Kumar, M. Narayana Rao

    KEYWORDS: Wild Legumes, Rhizobia Characterization, Stress Tolerance, Plant Growth Promotion

    JOURNAL NAME: Advances in Microbiology, Vol.6 No.1, January 21, 2016

    ABSTRACT: Rhizobia are vital for nitrogen input, fertility of soil and legume plant growth. Knowledge on rhizobial diversity from arid and semiarid areas is important for dry land agriculture in the context of climatic change and for economic utilization. This study provides morphological, biochemical, stress tolerance and plant growth promoting characteristics of fifteen rhizobial isolates from the nodules of same number of wild legumes and one isolate from cultivated Arachis hypogea from semi-arid region, Tirupati. The bacterial isolates were confirmed as rhizobia based on colony morphology and biochemical tests. Based on the colour change of YMA-BTB medium, eight isolates were identified as slow growers and six were fast growers. The isolates differed in growth pattern, colony morphology, antibiotic resistance at higher concentrations and uniformity in utilization of carbon and nitrogen sources. The isolates are tolerant to NaCl up to one percent, displayed normal growth at temperatures 28℃ - 30℃, at neutral pH and poor growth at pH 5and 9. The isolates varied in the production of EPS and IAA, positive for phosphate solubilization and siderophore formation. This functional diversity displayed by the isolates can be utilised for the legume crop production by cross inoculation.