Variability of genotype and inheritance of grain nitrogen content in winter wheat (Triticum aestivum L.)

In diallel crosses (without reciprocals) of four genetically divergent wheat cultivars (Yugoslavia, Osijecanka, Zitnica, and NS Rana 2) the variability and inheritance of nitrogen content in wheat plant were investigated. The mode of inheritance, gene effect, heritability in parent cultivars and F2 hybrids were studied. The different mode of inheritance: partial dominance, intermediate and overdominance for analyzed trait was established. Among parent cultivars, the highest nitrogen contents had Novosadska Rana 2 (3.52%). The combination Zitnica/NS Rana 2 in F2 grain generation was the best for nitrogen content. [Projekat Ministarstva nauke Republike Srbije, br. TR 31092