Outcomes of reciprocal crossings new Rye donor of super-short stem with electroidness Hl-3Hl-3elel and tall Rye Variety Viatka 2 are provided. The firs generation hybrids appeared to have a short stem with regular leaf blade. In the second generation the female parent effect of short stem domination was established, as well as complete domination of tall bushiness, long-spiked plants, increased number or grains in the ear. Weight of 100 grains in the ear made 22,79 і 29, 41% of the heterosis relative to the best parent. According to the results of the research of genetic and statistical parameters of F2 breeding characteristics plants with electoid leaf blade shape were selected.

The article presents the estimation of economic and biological characteristics of indeterminant tomato hyb­ rids (Raisa F1, Macarena F1, Emotion F1, Anabel F1, Mariachi F1) under conditions of winter hydroponic. The earliest emergence of fruits is established for Macarena F1 tomato hydrid. The total number of brushes, flo­ ers and w fruits formed on the plant during the vegetation period, is determined. The degree of fruit inception, yield per plant and average weight of the plant are measured. The monthly dynamics of hybrid tomato crops is presented. The largest harvest was collected through May to July. Marketable and non-marketable portions of the harvest and commercial quality of tomato fruits are determined. A close correlation between fruit weight and fruit yield is established. The Macarena F1 hybrid is distinguished as the most precocious and high-yielding variety.

Development and improvement of a female component of MS hybrids of sugar beet were carried out on the basis of the following methods: inereasing frequency of occurrence of sterility maintainers by means of preliminary saturation of the population with alleles of the x and z genes; the use, as a female form, of simple sterile hybrids from the crossing of sterile lines with unrelated O-types; and also the drawing in of complexes of valuable genes from materials of foreign origin.

Evaluation of the genetic component values considered to be the important part of the selection process on creating hybrids of sugar beet and The aim of the study is to determine tetraploid pollinators combining ability Bilotserkovskoy breeding on yield and sugar content and the genetic determination of the productivity elements and their phenotypic manifestations in first generation hybrids of sugar beet. The methods of test crossing on the type top cross of pollen sterile lines of Uuladivsky and Ivanovsky origin and stabilized ployidnistyu tetraploid pollinators of beet sugar Belotserkovskoy selection on yielding of sugar beet tetraploid pollinators of Bilotserkovskoy breeding have been applied. A key role belongs to non additive gene effects in gene structure of characteristics variability yielding has been determined.The part of additive gene action pollinators is predominant in genetic control of top cross hybrids sugar content. The 16 hybrid combinations are differentiated by their parental components combining ability. Pollinators of 1007 ( the yield ) and 1013 ( for the sugar content) have been characterized by their valuable additive gene complexes. Perspective hybrid combinations for their further breeding study are revealed, genetic determination of productivity elements and sugar yield is defined Analysis of gene interactions in sugar beet hybrids confirms the theory of genetic balance MV Turbine