Hybrid vi̇gor and inheritance of yield components in diallel bread wheat (T. aestivum L.) crosses

This research was conducted in Bursa Uludağ University Agriculture Faculty to determinate the inheritance of some agricultural traits in common wheat (Triticum aestivum L.) by Jinks- Hayman type diallel analysis. In this research, plant height, spike length, spikelet number/spike, seed number/spike, 1000 kernel weight were investigated on F1 plant and their parents. As a result of the research, it was determineted that both additive and non-additive gene effects fort he plant height and spike lenght characteristics, dominant gene effect in the spikelet number/spike, seed number/spike, 1000 kernel weight were determined. The highest heritability at narrow sense was estimated for plant height (0,69); the lowest value was obtained for seed number/spike (0,11). The highest heritability at broad sense were estimated for spike length, plant height (0,79) . The lowest heritability was estimated for 1000 kernel weight ( 0,61). The highest heterosis value in the study was determined as % 48.8 in GoliaxBasribey hybrid and % 35.2 in AldanexPamukova hybrid with the highest heterobeltiosis value.