Hybrid Vigor in Common Wheat (Triticum aestivum L.)
This research was carried out at the experimental plots of the Field Crops Department of Agriculture Faculty, Uludağ University, during 1994-1996. Thirteen strains of common wheat obtained from the Prof. Dr. Osman Tosun Gene Bank were used as parent material for seven combinations of hybridirazations. In the F 1 populations belonging to the abovementioned combinations, plant height, spike height, spikelet number per spike, kernel number and kernel weight per spike and 1000-kernel weight were determined and the hybrid vigor was calculated. Positive and significant differences varying among the combinations were found in the F 1 plants with higher values than the parent's average (heterosis) as well as in F 1 plants showing higher values than the superior parent (heterobeltiosis). Positive heterosis in 4 x 24 and 3 x 24 combinations and negative heterosis in the combination 225 x 161 were observed with regard to the all traits studied. Among the combinations the highest hybrid vigor value was obtained in the combination 4 x 24 with 80 % in kernel weight per spike.
Hybrid Vigor in Common Wheat (Triticum aestivum L.)
This research was carried out at the experimental plots of the Field Crops Department of Agriculture Faculty, Uludağ University, during 1994-1996. Thirteen strains of common wheat obtained from the Prof. Dr. Osman Tosun Gene Bank were used as parent material for seven combinations of hybridirazations. In the F 1 populations belonging to the abovementioned combinations, plant height, spike height, spikelet number per spike, kernel number and kernel weight per spike and 1000-kernel weight were determined and the hybrid vigor was calculated. Positive and significant differences varying among the combinations were found in the F 1 plants with higher values than the parent's average (heterosis) as well as in F 1 plants showing higher values than the superior parent (heterobeltiosis). Positive heterosis in 4 x 24 and 3 x 24 combinations and negative heterosis in the combination 225 x 161 were observed with regard to the all traits studied. Among the combinations the highest hybrid vigor value was obtained in the combination 4 x 24 with 80 % in kernel weight per spike.
