National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
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 60.25 was observed in AZT-R7 isolate followed by AZT-Y2 (59.17 %), AZT-J1 (57.77 %) and AZT-G4 (51.47 %). AZT-R7 recorded a maximum siderophore, IAA production and highest N2 fixation of 82.83 per cent, 100.75 μg 50 ml-1 and 10.33 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.
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