The results of studying of walnuts collection have been given; the evaluation of the assortment according to resistance to unfavorable climatic conditions has been done; some varieties have been recommended for using in breeding and introduction in industry.

The article shows experimental data of interline hybrids of sugar beet on the basis of weight of 1000 seeds, genetic determination of characteristic based on the method of Hayman and topcrossed polytested crossbreeding is established, their comparison is made. It also highlights valuable hybrid combinations and valuable for combining pollinating lines used in the breeding to enhance properties of sowing seeds.

The article shows experimental data of interline hybrids of sugar beet on the basis of weight of 1000 seeds, genetic determination of characteristic based on the method of Hayman and topcrossed polytested crossbreeding is established, their comparison is made. It also highlights valuable hybrid combinations and valuable for combining pollinating lines used in the breeding to enhance properties of sowing seeds.

Те article reflects summary of hybridization and assessment of genetic value of pollen-sterile maternal lines of various origin and tetraploid pollinators produced by Bila Tserkva selection. High differential potential of pollinator-testers has been established. Best components exhibiting high combinative features have been detected, which served as a baseline for establishing MS (male sterile) hybrids of sugar beets.

Те article reflects summary of hybridization and assessment of genetic value of pollen-sterile maternal lines of various origin and tetraploid pollinators produced by Bila Tserkva selection. High differential potential of pollinator-testers has been established. Best components exhibiting high combinative features have been detected, which served as a baseline for establishing MS (male sterile) hybrids of sugar beets.

Varietal resources make one of the key national priorities. They pose themselves an outcome of intellectual effort by considerable society part - geneticists, breeders, physiologist, biochemists and biophysicists, immunologists and mathematicians, economists, ecologists and variety examiners.

Varietal resources make one of the key national priorities. They pose themselves an outcome of intellectual effort by considerable society part - geneticists, breeders, physiologist, biochemists and biophysicists, immunologists and mathematicians, economists, ecologists and variety examiners.

The article features results of studying F1 hybrids of tomato inheriting productivity factors. 21 original hybrid forms and 57 F1 tomato hybrids in green-house have been studied. The efficiency of selecting genotype of valuable plants by genotype is substantiated.

The article features results of studying F1 hybrids of tomato inheriting productivity factors. 21 original hybrid forms and 57 F1 tomato hybrids in green-house have been studied. The efficiency of selecting genotype of valuable plants by genotype is substantiated.

The article describes Agro-ecological features of winter triticale variety Vivate Nosivskyi developed by means of individual selection based on hybrid combination ([Avgusto x NE 312] x К 9844) at the Examination Facility of Nosivska Breeding and Testing Station ofChernigivIAPPIAAN and selected by quantitative (grain productivity, quantity and weight of grains per ear, cup weight of grain, 1000 kernels weight), qualitative (protein contain, «raw» gluten) parameters of grain yield, by adaptability to a range of causative agents, abnormal events in winter-spring and summer, lodging. It shows that bio-agents of microbe preparations Azospirillum brasilense и Achromobacter album 1122 on initial stages of development of winter triticale variety Vivate Nosivskyi plants enhance nitrogen and phosphor nutrition as reflected in raw and dry weight of plants increased by 1,5 to 2,5 times, area of leaf surface - 2 to 2,4 times, grain yield -1,1-1,3 times.

The article describes Agro-ecological features of winter triticale variety Vivate Nosivskyi developed by means of individual selection based on hybrid combination ([Avgusto x NE 312] x К 9844) at the Examination Facility of Nosivska Breeding and Testing Station ofChernigivIAPPIAAN and selected by quantitative (grain productivity, quantity and weight of grains per ear, cup weight of grain, 1000 kernels weight), qualitative (protein contain, «raw» gluten) parameters of grain yield, by adaptability to a range of causative agents, abnormal events in winter-spring and summer, lodging. It shows that bio-agents of microbe preparations Azospirillum brasilense и Achromobacter album 1122 on initial stages of development of winter triticale variety Vivate Nosivskyi plants enhance nitrogen and phosphor nutrition as reflected in raw and dry weight of plants increased by 1,5 to 2,5 times, area of leaf surface - 2 to 2,4 times, grain yield -1,1-1,3 times.

The review of legal regulation of state testing, registration of plant varieties based on genetically modified organisms in Ukraine and the European Union. Defined problems, namely the problem of harmonization of legislation, the actual Ukraine's lack of specific legislation in the area of biosafety for GMO handling, lack of clear procedures for registration of GMOs and others.

The review of legal regulation of state testing, registration of plant varieties based on genetically modified organisms in Ukraine and the European Union. Defined problems, namely the problem of harmonization of legislation, the actual Ukraine's lack of specific legislation in the area of biosafety for GMO handling, lack of clear procedures for registration of GMOs and others.