Study on association pattern of nutritional and yield traits in groundnut (Arachis hypogaea L.) genotypes

Abstract

Groundnut (Arachis hypogaea L.) is the world’s third most important source of oil and fourth most important source of vegetable protein. Oil content, protein content and fatty acid composition (O/L ratio) are the most important quality attributes of groundnut. Investigation was carried out with fifty one advanced breeding lines of groundnut with five checks. These advance breeding lines were developed by crossing and selection at different levels. The phenotypic correlation among the oil, yield, protein, oil quality traits and yield component traits were determined over the season (10 environments). The trend of magnitude and direction of association among the quality traits of groundnut remained almost same in all environments at different location and across the seasons also, similar trend of association was found with minor changes, indicating minor influence of environment on the association of characters.