A. Muthu Kumar and Sandhya G.M.
Abstract
The objective of the study was to test the synergistic effect of microorganisms (bio-fertilizer) on the growthof Meliadubia. For this study the bio-fertilizer Azospirillum, Azotobacter, Phosphobacteria, AM fungi, andPotash Mobilizer developed by Institute of Forest Genetics and Tree Breeding (IFGTB) Coimbatore, wereused. The synergistic efficacy of bio-fertilizer was assessed in different forms viz., dual, triple, quadrupleand pentuple. The growth parameters viz., maximum shoot length (94.3 cm), root length (24.5cm), collardiameter (12.85mm), shoot and root dry weights (23.27g and 31.47g), total dry weights (54.73g) revealedplants receiving bio-fertilizer consortia (pentuple) performed well, which was further intrigued by thegrowth indices and quality indices. This study highlighted the potential efficacy of bio-fertilizer incombination i.e., triple, quadruple and pentuple was more efficient than single inoculants.