Evaluation of biochemical parameters for screening resistance of chickpea cultivars against Meloidogyne incognita

Nine out of ten cultivars of chickpea under study have shown susceptible reaction and all the cultivars showed highly galled root systems due to the attack of Meloidogyne incognita. Inspite of heavy galling, the cultivar BG 1067 showed very less effect in biomass production as compared to other cultivars accompanied with high activity of peroxidase in its root and hence it was categorized as tolerant to M. incognita. The post-infectional increase in phenolic and potassium content were significantly correlated to the tolerance mechanism of the varieties and can be used for screening germplasms against root-knot nematode.