Post Graduate, Department of Microbiology; Bidhannagar College, EB-2, Salt Lake, Sector 1, Kolkata-700064, West Bengal, India. E-mail: microbiosandip@gmail.com
Online published on 13 May, 2015.
Purpose of the present study is to check the potency of the strains Bacillus thuringiensis A5-BRSC and Bacillus megaterium ATCC 9885 for promoting growth of different plants without hazardous chemical fertilizers.
Four non-leguminous seasonal plants like Amaranthus; Ocimum, Abelmoschus and Capsicum are used to study combined growth promoting effects of two bacteria viz. Bacillus thuringiensis A5-BRSC and Bacillus megaterium ATCC 9885 under pot condition. Different morphological parameters like shoot height, leaf area, fresh weight and dry weights of the plants; as well as biochemical parameters like leaf chlorophyll content, catalase and peroxidae enzyme activities of both culture treated and untreated plants were investigated.
All the biofertilizer treated plants showed remarkably higher results in all parameters, except chlorophyll content, than control plants.
The strains proved as potential strains for plant growth promotion in pot study and hence may be used as biofertizer under field condition for sustainable agriculture.
Bacillus thuringiensis, Bacillus megaterium, dual inoculation, pot culture
