Variability of plant productivity in hybrid populations of spring soft wheat under the influence of nucleo-cytoplasmic interrelations

In reciprocal hybrids F2 and F3 of the spring soft wheat the authors studied the morphogenesis during interaction between heterozygous nuclei and allied or foreign cytoplasm. It was established, that plant productivity is determined by genotype of initial forms, nucleocytoplasmatic interrelations, conditions of vegetation and depend on generation of hybrids. The significant positive correlation was revealed between grain mass per one plant and homeostatic, that permit to combine in one genotype the indices of high productivity and adaptability. The efficiency obtaining of transgressive genotype, having selective importance, increases in more productive populations, first of all at the combination of the cytoplasm from Aegilops comosa Sibth et Sm. species and the nuclei from the variety of native breeding of Lutescence 6747.