In the present investigation, four efficient Azotobacter isolates were screened for various biocontrol traits and evaluated for its biological deterrent activity against Fusarium solani. Maximum per cent inhibition of was observed in AZT-R7 isolate followed by AZTY2 ( %), AZT-J1 ( %) and AZT-G4 ( %). AZT-R7 recorded a maximum siderophore, IAA production and highest N2 fixation of per cent, μg 50 ml-1 and mg g-1 , respectively. All the four isolates showed positive for the HCN test and the two isolates AZT-R7 and AZT-G4 showed positive for the H2S test and AZT-G4 for Phosphorus solubilization. Therefore, Azotobacter isolate AZT-R7 can be recommended for commercial production as a potential biocontrol agent and an alternative to P. fluorescens against Fusarium wilt in chilli grown in Hyderabad Karnataka region. | Biocontrol mechanisms of efficient azotobacter isolates against fusarium solani causing fusarium wilt of chilli Capsicum annum L. under in vitro conditions
