Three synthetics of Winter Rye were being observed for the quantity of seminal roots (QSR) to study their inheritance. High inheritance coefficients in a restricted sense were established. Genetic improvement of the Rye may be a result of direct breeding and of using heterosis effect. QSR expressed essentially negative genetic correlation with plant height, positive with grain size, productive bushiness and weight of grain in the ear of successors, as well as with grain yield per unit of the area. Genetic correlation coefficients shall be used in the applied breeding.

Three synthetics of Winter Rye were being observed for the quantity of seminal roots (QSR) to study their inheritance. High inheritance coefficients in a restricted sense were established. Genetic improvement of the Rye may be a result of direct breeding and of using heterosis effect. QSR expressed essentially negative genetic correlation with plant height, positive with grain size, productive bushiness and weight of grain in the ear of successors, as well as with grain yield per unit of the area. Genetic correlation coefficients shall be used in the applied breeding.

When studying period of maturation after harvest, varietal specificity of level of winter wheat seed maturation process reaction on hydrothermical factors has been revealed. This trait should been taken into consideration when deciding practical problems in respect to rational variety-regionizing as well as to development of seed technology based on biological peculiarities.

When studying period of maturation after harvest, varietal specificity of level of winter wheat seed maturation process reaction on hydrothermical factors has been revealed. This trait should been taken into consideration when deciding practical problems in respect to rational variety-regionizing as well as to development of seed technology based on biological peculiarities.

Basic results is resulted multidimen-sional statistical analysis of varieties of pea vegetable as initial material for the breeding of new varieties.

Basic results is resulted multidimen-sional statistical analysis of varieties of pea vegetable as initial material for the breeding of new varieties.

Outlook for selection on increased photosynthetic productivity of winter rye plants is discussed. Donors of short-stem resistant to powdery mildew winter rye were bred with erect and drooping shape of leaf blade. In the erect form the apexes of leaf are oriented at the angle drooping form has 45° inrelation to the stem. Incomplete domination of the drooping leaf shape with ratio 1 : 2 : 1 is established. For the first time symbolic designation of dominating genes is offered with drooping leaf blade - StSt, with transitional heterozygote Stst with recessional heterozygote stst. Higher yield of grain in the comparative variety examination was proved to be received for the erect leaf form, which is predetermined by decrease of plant height, increase of kernel weight from ear, as well as of 100 kernels from plant and by quantity of redicles. Drooping leaf blade rye forms are also promising for selection on increased photosynthetic potential.

Outlook for selection on increased photosynthetic productivity of winter rye plants is discussed. Donors of short-stem resistant to powdery mildew winter rye were bred with erect and drooping shape of leaf blade. In the erect form the apexes of leaf are oriented at the angle drooping form has 45° inrelation to the stem. Incomplete domination of the drooping leaf shape with ratio 1 : 2 : 1 is established. For the first time symbolic designation of dominating genes is offered with drooping leaf blade - StSt, with transitional heterozygote Stst with recessional heterozygote stst. Higher yield of grain in the comparative variety examination was proved to be received for the erect leaf form, which is predetermined by decrease of plant height, increase of kernel weight from ear, as well as of 100 kernels from plant and by quantity of redicles. Drooping leaf blade rye forms are also promising for selection on increased photosynthetic potential.

The possibilities of utilizing testers different genetical structure are considered. The peculiarities of testers productivity formation are ascertained. The dynamics of influence inbreed lines, testers and one's interaction on hybrids productivity are investigated. The peculiarities of hybrids productivity formation depending on utilizing testers and one's combining are indicated.

The possibilities of utilizing testers different genetical structure are considered. The peculiarities of testers productivity formation are ascertained. The dynamics of influence inbreed lines, testers and one's interaction on hybrids productivity are investigated. The peculiarities of hybrids productivity formation depending on utilizing testers and one's combining are indicated.