Peroxidase (E.C. 1.11.1.7) activity in resistant and susceptible barley cultivars infected with cereal cyst nematode, Heterodera avenae

The changes in peroxidase activity in the shoots and roots of three barley cultivars, DL 482 (susceptible), RD 2052 and C 164 (resistant) were determined after 30 days of inoculation with Heterodera avenae. Irrespective of the type of cultivars, peroxidase activity in both shoots and roots increased with H. avenae infection compared to respective checks. Further, out of the two resistant cultivars, the peroxidase activity was found to be greater in RD. 2052 with H. avenae infection.