Studies on genetic variability, heritability and genetic advance in parental and hybrid populations of green lace wing, a predator of cotton pests

摘要

The present investigation was carried out to study the genetic variability, heritability and genetic advance in the six parental and hybrid populations of Chrysoperla cornea Stephens (Neuroptera : Chrysopidae) originally collected from six different geographical regions of India at Biological Control Laboratory of Gujarat Agricultural University, Anand Campus during 1993-1995. Mean squares due to parents, hybrids and parents vs. hybrids revealed significant differences for most of the traits under study. Based on the mean performance for various biological traits, Anand population (A) proved to be the best followed by Aurangabad (AU), Jalgaon (J) and Hisar (H) populations. Among crosses, A x S and A x AU proved to be the potential crosses which involved Anand population (A) as one of the parents.