Character associations for yield and its components in grasspea (Lathyrus sativus L.) under different breeding methods

Two crosses of grasspea, viz., RED x P 28 and RED x EC 242692 were advanced through single seed descent, random bulk and pedigree methods to assess the nature of character associations for yield and its components in F₄ and F₅ generations under these three breeding methods. Single seed descent method showed a higher number of significant correlation as compared to random bulk and pedigree methods. Correlation only between pods per plant and yield per plant was consistent over breeding methods and generations. The inconsistency of other correlations over breeding methods and generations may be due to differential changes in gene and genotypic frequency associated with different breeding methods and genotype x environment interaction, respectively.