Genetic Analysis of Fruit and Shoot Borer Resistance in Okra

The research work entitled “Genetic analysis for yield attributes and resistance to shoot and fruit borer (Earias Vittella Fab.) in Bhindi (Abelmoschus spp.) was conducted KERALA AGRICULTURE UNIVERSITY, during 2006-2008. The main objectives of this project were to study the nature of gene action governing fruit and shoot borer resistance and yield attributes and to attempt for transfer of shoot and fruit borer resistance to genotypes with desirable yield attributes. Generation mean analysis for six generations from two crosses were carried out and gene action for yield attributes and resistance to fruit and shoot were studied. Duplicate non allelic interactions were observed for most of the traits studied. Complementary epistasis govern the inheritance of fruit borer resistance and digenic non-allelic interaction model was found inadequate to explain shoot borer infestation.The F1 of the cross Sel 2 x AC 5 was identified as the best hybrid for both marketable fruit yield and resistance to fruit and shoot borer and it also showed field resistance to Yellow Vein Mosaic Virus.