Role of Azotobacter sp. Isolates as a plant growth promoting agent and their antagonistic potentiality against soil borne pathogen (Rhizoctonia solani) under in vitro condition

The present experiment with different isolates of Azotobacter sp. was carried out to find out effective isolate for plant growth promoting activities and biological control. In case of in vitro screening for plant growth promoting efficacy, it was found that chilli seeds bacterized with AZT8 exhibited the highest per cent seed germination (98%) which was followed by AZT6 (86 %) and AZT4 (81%).