TRIPARTITE BIOINOCULANTS BENEFICIAL TO PHASEOLUS AUREUS ROXB. (GREEN GRAM) TO IMPROVE PLANT GROWTH BIOMASS PRODUCTION

Author(s): Airsang RV* and Lakshman HC

Abstract

Inoculation of beneficial microorganisms gains more important in recent days. Interactions between Arbuscular Mycorrhizal Fungus (Rhizophagus fasciculatus), Rhizobium and Phosphate Solubilizing Bacteria (PSB) Bacillus polymyxa have been studied on Green gram. In the present work, results revealed that single inoculation (AM Fungus) favours in the percent of colonization and spore number. But dual inoculation (Mycorrhiza+Rhizobium and Mycorrhiza+PSB) has improved the plant growth. However, plants inoculated with three bioinoculants such as AM Fungus, Rhizobium and Phosphate Solubilizing Bacteria (PSB) showed significantly increased tripartite biomass production of shoot and root. The nutrients like Nitrogen and Phosphorus also have been increased significantly over the control plants. It can be concluded that legume seeds need tripartite microbial inoculants before sowing to get maximum yield.

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