Vol. 11, Issue 10 (2022)

Author(s):
UR Phondekar, RG Bhagwat, RR Rathod and SB Thorat

Abstract:
In the present investigation, five native strains of Pseudomonas fluorescens were isolated from rhizospheric soil samples of healthy growing Potato field. Total five isolates were identified on the basis of different morpho-biochemical test and all isolates were found positive response for siderophore production, gelatine liquefaction, denitrification, starch hydrolysis and catalase test while negative response for gram staining test. To check their bio-efficacy, all five isolates of P. fluorescens were evaluated against bacterial wilt of potato which is caused by R. solanacearum. Results revealed that, all isolates exhibited antibacterial activity with inhibition zone that ranged between 7.75 to 12.75 mm.