The present investigation was carried out at Giza Agric. Res. Farm, Agric. Res. Center (A.R.C.) during 2003/04, 2004/05 and 2005/06 seasons. The main objective was to evaluate five parental genotypes {Giza 4 (P₁), Belinka (P₂), 5.2465/1 (P₃), 5.533/39 (P4) and Sakha 1 (Fs)), in addition to four possible crosses (P₁xP₃, P₁xP₄, P_ixP_s and P₂x1³₅) in the F₁ and F2 generations for yield, heterosis, inbreeding depression, genetic parameters, phenotypic (r₁,) and genotypic (r₉) correlations. Results showed that the cross F2 (F2xFs) was superior to other entries in plant height and technical stem length but it ranked second for fiber percentage. The cross F2 (PixFs) recorded the highest straw and fiber yields/plant, while the strain 2465/1 ranked first in seed yield / plant followed by F2 (P1xF3) ^and F1 (PorP3).The majority of studied crosses showed positive heterosis values over mid-parents, but few ones over the better parent for straw and seed traits. The cross P₁xP₃ performed inbreeding gain in most seed characters, while the two crosses P_ixPs and PzxPs exhibited inbreeding advancement in F2 generation for six straw traits and five seed characters. The estimates of r_{p < /sub> coefficient were significant and positive between plant height and each of technical stem length, fiber yield/plant and fiber percentage with rg positive values. The estimates of rp < /sub> coefficient between no. of capsules/plant and each of no. of seeds/plant, seed index and seed yield/plant recorded significant positive correlation with r9 values.}