Author(s):

Lohith Kumar N, Muthuraju R, Avinash M, Neekhitha Shetty and Ameena Sulthana JH

Abstract: Drought is the most destructive stress among abiotic stresses that increased in intensity over the past decades affecting world’s food security. Drought stress may range from moderate and short to extremely severe and prolonged duration, restricting the crop yields. In recent times, the use of rhizobacteria for alleviation of drought stress in plants has gained momentum. In this study desiccation tolerant rhizobacterial isolates were subjected to quanitative analysis of phosphate solubilizing abilities of the desiccation tolerant rhizobacterial isolates results revealed that isolate KOP-2 CHI-4, and GAD1-1(1.42, 1.27 and 0.84 µg/ml) were able to solubilize higher phosphorous under stress condition. Similarly, under non-stress condition, isolate KOP-2, CHI-4, and GAD-1 (2.47, 2.07 and 1.69 µg/ml) were able to solubilize higher phosphorous compare to other isolates. The nine desiccation tolerant rhizobacterial isolates were examined for the production of IAA, GA3 and ABA with and without tryptophan under stress and non-stress condition. Among the isolates KOP-2, GAD-1 and CHI-4 showed maximum IAA, GA₃ and ABA production under stress and non-stress condition.

Pages: 1281-1283  |  691 Views  167 Downloads

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