National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present study was conducted at Department of Plant Pathology and Agricultural Microbiology, MPKV, Rahuri during year 2021 to 2023 to characterize and screen different isolates of Azotobacter and PSB from Different Xerophytic plants from Different districts of Maharashtra State.68 Azotobacter isolates were biochemically characterized and screened under In- vitro conditions for their plant growth promoting properties. The highly efficient Azotobacter isolates was characterized by its nitrogenase activity, which was 189.4 nmol C2H4. mg protein-1.h-1 in Azt 2 (Zizipus spp) isolates, Out of sixty eight Azotobacter isolates, 3 isolates viz., Azt- 2 (Ziziphus spp), Azt-17 (Aloe spp), Azt- 8 (Agave spp), recorded significantly higher nitrogenase activity. The amount of Pi released from tri- calcium phosphate (TCP) by the isolates at 10 day after inoculation was ranged from 18.5 to 29.65 %. The quantitative estimation of per cent inorganic phosphorus released from Tri- calcium phosphate had recorded highest for PSB-4 (Zizipus spp) which was 29.65 % Thus, isolate PSB-4 (Zizipus spp) i.e. efficient strain isolated from ber was found to be significantly superior over rest of the isolate in solubilizing phosphate.
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