author(s)
Kantipudi Rajesh Kumar, NN Singh, SVS Raju, Pravin Prakash and Vijay Kumar Mishra

abstract
The present study the biochemical on the basis of resistance against Leucinodes orbonalis infestation was conducted during the year 2013 and 2014. During the first year total chlorophyll content was maximum in leaves of CO-2 variety with 0.920 mg g^-1 while, minimum total chlorophyll content was noticed in the varieties Swarna Prabha and Utkal Tarani with 0.786 mg g^-1. During second year also CO-2 variety recorded maximum total chlorophyll content with 0.922 mg g^-1. Whereas, minimum total chlorophyll content (0.790 mg g^-1) was recorded in Arka Keshav. From the present investigation it could be ascertained that the chlorophyll content was higher in leaves of susceptible brinjal variety CO-2 with shoot infestation of 20.25 % and 22.06 % as compared to resistant genotype Arka Keshav with 3.95 % and 4.65 % shoot infestation. A significantly positive correlation was observed during both the years between total chlorophyll content and shoot infestation that ascertained increase in chlorophyll content resulted in an increased shoot infestation.