Abstract
The study was conducted at Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad during the year
2006-2007. Fifteen lentil lines/varieties were evaluated to exploit yield components to the maximum extent and to
formulate selection criteria for the improvement of seed yield. Significant genetic variation was observed for all the
traits. All the traits under study had high heritability values except number of primary branches. Higher values of
heritability coupled with genetic advance were observed for seed yield (98.30%, 128.20%), harvest index
(97.10%, 79.40%), biological yield (94.30%, 56.10%) and hundred seed weight (88.30%, 50.80%) which indicates
the role of additive genes to control these traits. Hundred seed weight (0.67, 0.65), harvest index (0.94, 0.93) and
biological yield (0.81, 0.80) had positive and highly significant correlation with seed yield at both genotypic and
phenotypic levels. Number of primary branches, hundred seed weight, harvest index and biological yield showed
positive direct effect along with positive genotypic correlation with seed yield. Finally, it was concluded that the
traits like hundred seed weight, harvest index and biological yield can be exploited for the improvement of seed
yield in lentil.
