ISOLATION AND CHARACTERIZATION OF PGPR OF RICE RHIZOSPHERE FOR PHOSPHATE SOLUBILIZATION
Plant growth promoting rhizobacteria(PGPR) are the bacteria that colonize rhizosphere and plant root and enhance growth of plant by variety of mechanism. Certain PGPR used as biofertilizers might be beneficial for rice cultivation as they promote root and shoot growth thus improve seedling vigour which significantly increases the yield of grain. Pertaining to these facts in the present study plant growth promoting rhizobacteria which are compatible to rice plant root are isolated, characterized and screened for their phosphate solubilizing property. Total 18 rhizobacterial isolates were isolated and out of which 9 isolates were found to be phosphate solubilizers and considered as PGPR. These isolstes must be used as biofertilizers to attain significant productivity and soil fertility.
NIHARIKA DEWANGAN , RANJANA SHRIVASTAVA, A.K. SRIVASTAVA AND VIBHA SAHU
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