PLANT GROWTH PROMOTING RHIZOSPHERIC BACTERIAL ISOLATION, CHARACTERIZATION AND CONSORTIUM DEVELOPMENT FOR POTASH MOBILIZATION AND ITS EFFICACY IN MAIZE (ZEA MAYS L.)
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Date
2018
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DEPARTMENT OF AGRICULTURAL MICROBIOLOGY B. A. COLLEGE OF AGRICULTURE ANAND AGRICULTURAL UNIVERSITY, ANAND
Abstract
Series of experiments were carried out to explore plant growth promoting abilities of native rhizospheric potash mobilizing bacterial (KMB) isolates. Total 116 bacteria were isolated, wherein 42 isolates showed prominent efficiency of K mobilization, from which, 17 prominent cultures were selected on the basis of the highest zone of solubilization on Aleksandrov agar supplemented with mica. Isolate M-2 gave the highest potash solubilizing index 8.0 and K release 21.41 μg/ml at 4 days after inoculation in Aleksandrov broth. All the 17 KMB isolates exhibited organic acid and capsular polysaccharides production out of which 14 isolates were positive for acidic exo-polysaccharides.
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