Studies on triticale-wheat crossability

Abstract

Crossability was studied among seven secondary triticales and six wheat genotypes. Wheat x triticale crosses showed hih percentages of seed setting but the seeds were illfilled and poor in germination, which was in contrast to their reciprocals. The reciprocal differences were attributed to selective elimination of abnormal gametes of triticale on male side only. Genotypic differences for crossability were seen in both wheats and triticales. The Kr gene system of Krolow was found to operate in the presence of a particular rye chromosome rather than against the whole rye genome.