AGRONOMIC CHARACTERISTICS OF THE NEWLY SYNTHESIZED PRIMARY ALLOPLASMIC OCTOPLOID FORMS OF TRITICALE

The influence of alien cytoplasm, nucleo-cutoplasmic interaction and parental genotypes concerning 9 agronomical characters: heading date, common tillering, culm length, last internode length, ear length, spikelet number per ear, kernel number per ear, kernel weight per main ear, kernel weight per plant and 1000-kernel weight was studied. Agronomical investigation was carried out on 12 new triticale lines, isolated in the process of the cytological stabilization of line 1732-2 and 3 new triticale lines, isolated in the process of the cytological stabilization of line 1737-1. It was established that the agronomical characteristics in the newly synthesized lines depends on the nucleus, cytoplasm, their interaction and nucleus-cytoplasm co adaptation. The cytoplasms of D(2)-type render the strongest positive effect on the ear lenght, spikelet number per ear, kernel number per ear, kernel weight per main ear, kernel weight per plant and 1000- kernel weight in newly syntesized alloplasmic octoploid lines triticale 1732-65 and 1732-66.