The current study was conducted at Fac. Agric. Farm, Assiut University, Egypt, over three consecutive seasons, 2019/2020, 2020/2021, and 2021/2022. The objective of this study was to examine the effectiveness of two cycles of pedigree line selection for the grain yield and one cycle of late selection in a single segregating population of bread wheat (Triticum aestivum. L). From the base population to the final early and late cycles of pedigree line selection, the genotypic (GCV) and phenotypic (PCV) coefficients of variation for the grain yield/plant and its attributes decreased. Otherwise, from the base population to the end cycles of early and late selection, the heritability values for grain yield/plant and its attributes were increased. The final 10 selections of both early and late selected families outperformed their respective parents and unselected bulk sample, resulting in late selections with a more powerful direct response to selection for the grain yield/plant