The Enzymatic Effect of Bio-agents on the Enzymatic Activity of Brinjal Infected with Root-knot Nematode (Meloidogyne javanica)

Effect of culture filtrate (20 per cent concentrate) of bioagents (viz., Trichoderma viride, Trichoderma harzianum, Purpureocillium lilacinum, Pochonia chlamydosporia and Pseudomonas fluorescens) were tested on root-knot nematode (M. javanica). The accumulation of PPO and PAL and Phenol in brinjal roots infected with root-knot nematode (M. javanica) were also evaluated. The results showed that application of bio-agents increased the level of PPO, PAL and phenol in brinjal roots. Among all the treatments, application of T. viride @ 3 gm/kg soil is best treatment enhancing PPO, PAL and phenol activity, improve plant growth characters as well as in reducing nematode population over other treatment.