Relatively low dispersion and intermediate mean values were obtained for 1000 grain weight. About half of the F₁ hybrids showed low level of heterosis. In Kranich, Salzmftnder and Zorba F₂ hybrids a great number of transgressive segregates occurs. Diallel analysis in the F₂ showed complete dominance and relationship between high 1000 grain weight and dominant genes. Wide range of values for grain falling number were obtained in parental lines and their F₁ and F₂ generations, indicating good chances of isolating desirable genotypes. Calculated coefficients of sedimentation were treated as negatively correlated with flour yield. On the basis of the coefficients the lines formed three groups. In the F₁ desirable negative heterosis occurred and many transgressive segregates were found in the F₂. Heritability estimates were low for the studied traits and ranged from 17 do 36%.
Sedimentation value and protein content were intermediate in the six studied lines. Nearly all F₁ hybrids showed positive heterosis for protein content. In the F₂ generation a great number of transgressive segregants were observed for protein content and only few for sedimentation value. Heritability estimates were 21% for theoretical loaf volume, 36% for sedimentation value and 41% for protein content. Protein content in the F₂ was governed by overdominance whereas sedimentation value was controlled by partial dominance. Recessive genes acted in the direction of higher sedimentation values.