The results of introduction and selection of interspecific hybrid nectarine forms in the conditions of  Botanical Gardens of Dnepropetrovsky National University named after O. Gonchar have been given in the article. The perspectives of further use of selected nectarine genotypes in breeding work and nursery practice have been.

The results of introduction and selection of interspecific hybrid nectarine forms in the conditions of  Botanical Gardens of Dnepropetrovsky National University named after O. Gonchar have been given in the article. The perspectives of further use of selected nectarine genotypes in breeding work and nursery practice have been. | В статье представлены результаты интродукции и селекции межвидовых гибридных форм нектарина в условиях ботанического сада Днепропетровского национального университета им. О. Гончара. Рассматриваются перспективы дальнейшего использования выделенных генотипов нектарина в селекционной работе и в питомниоводстве. | У статті представлені результати інтродукції і селекції міжвидових гібридних форм в умовах ботанічного саду Дніпропетровського національного університету ім. О. Гончара. Розглядаються перспективи подальшого використання вивчених генотипів нектарина у селекційній роботі і розсадництві.

The author presents the characteristies of the best stone fruit crops cultivars of the Donets’k breeding which are high adapted to the climatic conditions of the Donbass and Ukrasne’s northern regions and have marketable fruits.

The author presents the characteristies of the best stone fruit crops cultivars of the Donets’k breeding which are high adapted to the climatic conditions of the Donbass and Ukrasne’s northern regions and have marketable fruits.

The present state of genofond of the collection that includes 78 taxa supfamily Maloideae C. Web. (Rosaceae Juss.) in DNU Botanical Garden.

The present state of genofond of the collection that includes 78 taxa supfamily Maloideae C. Web. (Rosaceae Juss.) in DNU Botanical Garden. | Проанализировано современное состояние генофонда коллекции 78 таксонов подсемейства Maloideae C. Web. (Rosaceae Juss.) в Ботаническом саду Днепропетровского национального университета. | Проаналізовано сучасний стан Генофонду колекції 78 таксонів підродини Maloideae C. Web. (Rosaceae Juss.) в Ботанічному саду Дніпропетровського національного університету

The results of 39-year large-scale work on apple breeding for the improvement of fruit biochemical composition are discussed. The character of the inheritance of the content of sugar, titrate acids, ascorbic acid and P-active substances in fruit is shown. The brief descriptions of the new varieties with good flavor and harmonic combination of sugar and acidity are given. The prospects of the trend are shown.

The results of 39-year large-scale work on apple breeding for the improvement of fruit biochemical composition are discussed. The character of the inheritance of the content of sugar, titrate acids, ascorbic acid and P-active substances in fruit is shown. The brief descriptions of the new varieties with good flavor and harmonic combination of sugar and acidity are given. The prospects of the trend are shown.

The results of 39-year large-scale work on apple breeding for the improvement of fruit biochemical composition are discussed. The character of the inheritance of the content of sugar, titrate acids, ascorbic acid and P-active substances in fruit is shown. The brief descriptions of the new varieties with good flavor and harmonic combination of sugar and acidity are given. The prospects of the trend are shown. | В статье обсуждаются результаты 39-летней крупномасштабной работы по селекции на улучшение биохимического состава плодов яблони. Показан характер наследования содержания в плодах сахара, титруемых кислот, аскорбиновой кислоты и Р-активных веществ. Приведена краткая характеристика новых сортов с хорошим вкусом и гармоничным сочетанием сахара и кислоты, указана перспективность направления | Обговорюються результати 39- річної крупномасштабно'! роботи по селекції яблуні на поліпшення біохімічного складу плодів. Показано характер успадкування вмісту в плодах цукрів, титрованих кислот, аскорбінової кислоти і P-активних речовин. Наведена коротка характеристика нових сортів з хорошим смаком і гармонійним співвідношенням цукрів і кислоти, приведено перспективу напряму.

Water-soluble carbohydrates, cytokinins, ABA, salicylic acid and microelements content's dynamics in wintering underground organs of P.alba and G.nivalis were studied. Correlation between substance's level and air temperature, ground freezing depth, snow layer thickness fluctuations was determined. The role of phytohormons and free sugars in adaptive potential realization are discussed.

Water-soluble carbohydrates, cytokinins, ABA, salicylic acid and microelements content's dynamics in wintering underground organs of P.alba and G.nivalis were studied. Correlation between substance's level and air temperature, ground freezing depth, snow layer thickness fluctuations was determined. The role of phytohormons and free sugars in adaptive potential realization are discussed.

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.

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.

There provided ways of using valuable protein crop, soybean, as well as its production worldwide growth rates during recent years, possibility and necessity of attaching to the crop a strategic importance in our State and the tasks and outlooks of soybeanrecourses generation. A complete description of new soybean varieties listed in the Register of Varieties Suitable for Dissemination in Ukraine has also been provided.

There provided ways of using valuable protein crop, soybean, as well as its production worldwide growth rates during recent years, possibility and necessity of attaching to the crop a strategic importance in our State and the tasks and outlooks of soybeanrecourses generation. A complete description of new soybean varieties listed in the Register of Varieties Suitable for Dissemination in Ukraine has also been provided.

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.

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.