ABSTRACT : |
Effect of two bacterial strains, Azotobacter vinelandii and Bacillus megaterium, was studied on the growth of two mangrove species, Rhizophora mucronata andAvicennia marina, raised for 60 days in soil under three levels of salinity (0, 17.5 and 35 g l-1). The bacillus treatment enhanced the shoot biomass by 171.6% in A. marina, while the azotobacter treatment increased it by 118.5%, as compared to their respective controls. In Rhizophora mucronata, the root biomass was higher by 123.9% in bacillus-treated, and by 69.6% in azotobacter-treated than in control. Bacillus megaterium was found to be more potent microbial fertilizer than Azotobacter vinelandii in stimulating growth of the mangroves.
Key Words: Biofertilizer, Azotobacter vinelandii, Bacillus megaterium, mangroves |
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