ABSTRACT Tritordeum is the amphiploid derived from the chromosomal duplication of hybrids between a South American wild barley (Hordeum chilense Roem. et Schult.) and wheats. These amphiploids have shown some hopeful agronomic characteristics to become a new manmade cereal. Both hexa- and octoploid tritordeums exhibit quality characteristics similar to those of bread wheat and different to those of durum wheat. Likewise, a wide range of variation for quality characters has been found between the tritordeum tested lines. The data obtained suggest that the found variability is associated with the H. chilense lines used in the cross, in special, with the electrophoregram composition of the storage endosperm proteins in this species. Works carried out on these proteins have shown high polymorphism in the world collection of H. chilense. We believe that the variability for the storage proteins available in H. chilense could be used for opening new ways for quality improvement in cereals. Directly we are looking for new uses of tritordeum and indirectly we are using tritordeum as a bridge species for introgretion quality traits into durum and bread wheat.
Buy this Article
|