Seven popcorn inbred lines were crossed in a half-diallel mating design in2019season. The resulting 21 F₁ hybrids were evaluated in 2020 season in a split plot design with three replications.Two plant densities (D) of 25000 and 31000 plant/feddan were arranged in the main plots and 21 popcorn hybrids were arranged in the sub plots.Data were recorded on days to50% silking, plant height, grain yield, No.of kernels/10g, popping volume, unpopped kernels% and ear diameter. The results showed that plant height,grain yield and unpopped kernels% were affected by plant density. The higher plant density produced taller plants , higher grain yield/ fed  and low unpopped kernels%  than those under low plant density.Significant variability among popcorn hybrids were detected for all traits. While the interaction between hybrid × plant density was not significant for all studied traits. Two popcorn hybrids(Sk4016×Hp6215)and (ZPB2×Hp6208) had high grain yield/fed and  high popping volume. The additive gene effects were more important than non-additive genes effects for the inheritance of number of kernels/10g, popping volume and ear diameter. While, the non-additive gene effects were more important than additive genes in the inheritance of days to50% silking, plant height, grain yield/fed and unpopped kernels%. The desirable inbred lines for general combining ability effects were Hp6208 for earliness, plant height, grain yield/fed, unpopped kernels% and ear diameter, ZPB2 for earliness, number of kernels/10g, popping volume and unpopped kernels%and Hp6215 for earliness, grain yield and number of kernels/10g.The two hybrids (Sk4016×Hp6215andSk6013×Sk6014)exhibited desirable specific combining ability effects for grain yield and poppingvolume,respectively.