Genetic architecture of protein, lysine and sugar contents in grain sorghum

The high gca magnitude revealed the higher level of additive genetic variance compared to nonadditive variance is an indicative of direct selection for high protein and lysine content lines in the segregating population. The reciprocal effects for sugar content revealed careful choice for female parents. The ratio of dominant to recessive genes and that of H₂/4H, confirmed the equal distribution of dominant and recessive genes for protein content, while for lysine and sugar content there were some deviations.