Abstract

The present study focused on the combining effect of Glomus fasciculatum with Rizobacteria (Azospirillum brasilense and Pseudomonas fluorescens) on the growth and yield of chilli variety PLR-1. All the treatments were applied as single, dual and combined inoculants, under pot conditions, in a Completely Randomised Block Design (CRPD).The biofertilizers were applied to the roots by coating or dipping, with the inoculants in a solid or liquid support, respectively. The population of AMF and rhizobacteria were enumerated at 30, 90, 120 days after inoculation, the highest population of AMF was 75.1 % at 90 days after inoculation. The populations of P. fluorescens was ranged from 3.55 × 106 to 11.7 × 106 cfu g-1 of soil and A. brasilense was ranged from 2.99 × 106 to 14.0 ×106 cfu g-1 of soil were detected in the rizosphere soil of chilli. The highest population of P. fluorescens was recorded 11.7 × 106 cfu g-1 of soil and A. brasilense was recorded 14.0 × 106 cfu g-1 of soil at 90 days after inoculation. In the pot condition the combined inoculation showed highest results and slightly difference were occurred on growth parameter and chlorophyll content. Single and dual inoculation also promotes the growth of leaves, chlorophyll content, plant height and root weight. Overall obviously excellent results were observed in combined inoculation. The maximum yields (158.33) were recorded on T12 - Pseudomonas fluorescens + Azospirillum brasilense + Glomus fasciculatum (combined inoculation) and minimum yield recorded on T3 - P. fluorescens (single inoculant) (104.33), these observations were significantly greater than control.

Keywords: Chilli, biofertilizer, AMF, Rhizobacteria, root coating, root dipping, growth parameters, chlorophyll content.