Manifestation of phenotypic dominance in F1 and the degree of transgression in F2 by elements of productivity of the main ear of soft winter wheat

The results of the study phenotypic dominance in F 1 and degree transgression F2 by elements productivity: number mass grains length main ear soft winter wheat are presented. selection parental components for crossing was formed according to scheme 7x7 diallel crossings: productivity (Podolianka, MIP Kniazhna, Yuvileina, Dovira), nutritional direction (Chornobrova, Biliava, Sofivka). In 1, spike, heterosis or overdominance determined 25 combinations (61.0 %). highest manifestation found reciprocal Kniazhna ↔ Yuvileina Sofivka, etc. According 26 (63.5 %) Chornobrova, Chornobrova Dovira By from ear, 29 (72.5 Sofivka These groups have value practice. 2, most populations signifcantly exceeded components, which indicates a signifcant formative process possibility selection. positive 96.7 % hybrid populations. 32 (80.9 - 40 studied (97.5 A high characterized where varieties were used as maternal form: Dovira, Key words: wheat, F1 hybrids, elements, dominance, populations, transgression.