HERITABILITY OF IN VITRO REGENERATION IN WHEAT (Triticum aestivum L.)

Abstract

This study measured the heritability of in vitro regeneration in wheat (Triticum aestivum L.). Immature embryos of 28 F2-derived families of the spring wheat cross HY912 × HY320 were cultured in the F3, F4, and F5 generations. Highly significant (P < 0.01) genotypic differences were observed for embryo germination, callus induction, embryogenic callus formation, and plantlet regeneration. Comparisons of generation means and mid-parent values suggest that additive variance is an important factor in the inheritance of in vitro regeneration.Key words: Regeneration, in vitro, heritability, Triticum aestivum, wheat