Journal of Eco-friendly Agriculture

Recently the use of biocontrol agents in place of hazardous chemicals is gaining importance for managing pathogens and promoting plant growth. Phenolics are large group of antimicrobial compounds that act as signaling molecules in plant defense mechanisms after induction of induced systemic resistance (ISR) as well as in plantmicrobe symbiosis. They also play important roles in plant growth promotion and nodule morphogenesis. So, it is imperative to estimate the total phenol content (TPC) in microbe-treated plants. Current study focus on the effects of Bradyrhizobium spp, Pseudomonas spp. and Glomus spp. in pigeonpea plants for enhanced plant growth and phenol production after their separate application. Bradyrhizobium spp. were tested for nodulation in pigeonpea plants through sterilized soil in pots. Growth promotion study was performed after seed bio-priming of pigeonpea in sterilized soil in pots under net house condition. Total phenol content (TPC) was produced maximally in plants treated with G. mossae (LGC-4). There was growth promoting effects of bio-agents on different growth parameters were variable but in all cases enhanced growth promotion was observed as compared to the healthy control plants.