Eight bread wheat (Triticum aestivum L.) genotypes included 6 lines and 2 testers were crossed in a line × tester mating design. The 12 F1’s and their parents were evaluated for grain yield/plant and 9 agronomical traits. The results indicated highly significant genetic variability for all studied traits. Line Q8 was the best combiner for early flowering date, grains/spike, grain weight/spike and 1000-kernel weight traits. While line Q10 was the best parent for tallness and grain yield/plant. The T1 (PI330456) was a potential tester parent for spike length, spikelets/spike, stem diameter, grains/spike, and grain yield/plant. While T2 (PI330458) was good combiner for earliness and 1000-kernel weight.  Several hybrids showed highly significant positive specific combining ability (SCA) for some studied traits. Mother lines played a positive influential role towards plant height, spike length, tillers/plant and grain weight/spike. While paternal testers influence was predominant for days to flowering, spikelets/spike, stem diameter, grains/spike, 1000-kernel weight and grain yield/plant. Additive gene action was found for plant height, spikelets/spike, stem diameter grains/spike and grain weight/spike. While, for days to flowering, spike length, tillers/plant, 1000-kernel weight and grain yield/plant, non-additive gene action was predominant. High estimates of broad- and narrow-sense heritability for grains/spike, grain weight/spike, plant height and 1000-grain weight. Maximum genetic advance along with high narrow-sense heritability were observed for grains/spike and plant height reflecting that a reliable selection for these traits can be made on the basis of phenotypic …