EFFECTS OF HOMOEOLOGOUS GROUP-1 AND GROUP-6 CHROMOSOMES OF THE CAPPELLE-DESPREZ (BEZOSTAYA-1) SUBSTITUTION LINES ON ASPECTS OF BREAD-MAKINGQUALITY OF WHEAT

The group 1 and 6 inter-varietal chromosome substitution lines of Capp elle-Desprez (Bezostaya 1) were intercrossed along with the donor and recipient varieties, Cappelle-Desprez and Bezostaya 1, to give 36 gene tically different families. The analysis of the means of these familie s showed that variation in SDS-sedimentation volume fitted a predomina ntly additive model. There were no significant within or between chrom osome interactions among the group 1 and 6 chromosomes. Nor was there any evidence for interactions between these chromosomes and those of t he background. Significant dominance/within chromosome interactions am ongst the background chromosomes were however detected. Some of the po sitive effects on SDS-sedimentation were associated with increased gra in hardness. Chromosome effects on % grain protein were not correlated with SDS-sedimentation.