Characterization of Plant Growth Promoting Rhizobacteria associated with Potato rhizosphere

Plant growth promoting rhizobacteria (PGPR) are a group of bacteria that can be found in the rhizosphere, Plant growth-promoting rhizobacteria (PGPR) are beneficial bacteria that colonize plant roots and enhance plant growth by a wide variety of mechanisms. The use of PGPR is steadily increasing in agriculture and offers an attractive way to replace chemical fertilizers, pesticides, and supplements. In association with roots which can enhance the growth of plant directly or indirectly. Numerous studies on PGPR has been made in all over India in several different crops but few in Chhattisgarh region and none on potato crops In the present study, four potato Rhizospheric soil samples were collected from different sites of Bilaspur C.G (India). A total of 23 bacteria were isolated. Different plant growth promoting activities i.e. phosphate solubilisation, IAA production, ammonia production, HCN production, siderophores production, amylase production, protease production and catalase production of isolated strain were carried out. Out of 23 isolates five bacterial isolates were positive for phosphate solubilisation, 15 for IAA production. Almost all the isolates were positive for ammonia production. Nine isolates were positive for HCN production, 19 for Amylase production, 14 for protease production and 16 isolates were found to be catalase positive. As PGPR are environmental friendly and offer sustainable approach to increase production of crops and health. Therefore, these isolates can be utilized for biofertilizer formulation under local agro-climatic conditions of Bilaspur (C.G), India after field trial. Which is in progress.