Purpose. Identifying new scab-resistant apple varieties with high biological potential by the set of agronomic characters and the ability to realize it effectively in various soil and climatic conditions. Methods. Field, laboratory, comparison, generalization, statistical ones. Results. The author presents the results of study of 17 scab-resistant non-irrigated apple varieties on a semi-dwarf rootstock as to their adaptability to biotic and abio­tic stressors as well as their economic productivity. The studied varieties appeared to be winter-hardy, frost- and heat-resistant, but medium drought-tolerant ones. They are characterized by weak and moderate susceptibility to powdery mildew, high resistance to fruit rot and very low amounts of brown spot, except for Gold Rush variety. Such 10 year old varieties as ‘Edera’, Florina’, ‘Amulet’ and ‘Perlyna Kyieva’ and 8 year old ‘Afrodita’, ‘Vitos’, ‘Orlovskoie Polesie’ and ‘Topaz’ formed the highest productivity during the years of study. Due to the pollen quality and high interfertility, ‘Revena’ and ‘Gold Rush’ varieties were identified as universal pollinators for winter scab-resistant apple varieties. Conclusions. Such ecologically resistant winter varieties as ‘Topaz’, ‘Freedom’, ‘Edera’ and autumnal ‘Remo’, ‘Afrodita’, ‘Vitos’, ‘Amulet’ were recognized as promising for new intensive non-irrigated plantations in the Forest-Steppe zone of Ukraine. They can be the basis of new gardens occupying 25–30% of the area where ecologically safe fruits for various target purposes will be grown supplying demands of the population and processing industry.

Purpose. Identifying new scab-resistant apple varieties with high biological potential by the set of agronomic characters and the ability to realize it effectively in various soil and climatic conditions. Methods. Field, laboratory, comparison, generalization, statistical ones. Results. The author presents the results of study of 17 scab-resistant non-irrigated apple varieties on a semi-dwarf rootstock as to their adaptability to biotic and abio­tic stressors as well as their economic productivity. The studied varieties appeared to be winter-hardy, frost- and heat-resistant, but medium drought-tolerant ones. They are characterized by weak and moderate susceptibility to powdery mildew, high resistance to fruit rot and very low amounts of brown spot, except for Gold Rush variety. Such 10 year old varieties as ‘Edera’, Florina’, ‘Amulet’ and ‘Perlyna Kyieva’ and 8 year old ‘Afrodita’, ‘Vitos’, ‘Orlovskoie Polesie’ and ‘Topaz’ formed the highest productivity during the years of study. Due to the pollen quality and high interfertility, ‘Revena’ and ‘Gold Rush’ varieties were identified as universal pollinators for winter scab-resistant apple varieties. Conclusions. Such ecologically resistant winter varieties as ‘Topaz’, ‘Freedom’, ‘Edera’ and autumnal ‘Remo’, ‘Afrodita’, ‘Vitos’, ‘Amulet’ were recognized as promising for new intensive non-irrigated plantations in the Forest-Steppe zone of Ukraine. They can be the basis of new gardens occupying 25–30% of the area where ecologically safe fruits for various target purposes will be grown supplying demands of the population and processing industry.

The paper highlights results of 60 years of apple breeding activity at the All-Russian Research Institute for Fruit Crop Breeding of RAAS (former Orel Zonal Fruit-Berry Experimental Station). Major selection effort has been applied to apple breeding for higher contents of ascorbic acid and P-active substances in fruit. A pattern of the inheritance of biologically active substances in apple fruits is shown. First time in Russia a large-scale selection has taken place for the purpose of developing domestic scab immune apple varieties (Vf). 20 scab immune varieties have been created and included into the State Register. First time in Russia and in the world a range of triploid apple varieties have been developed through directed diverse chromosome crossings 2x x 4x and 4x x 2x.

The paper highlights results of 60 years of apple breeding activity at the All-Russian Research Institute for Fruit Crop Breeding of RAAS (former Orel Zonal Fruit-Berry Experimental Station). Major selection effort has been applied to apple breeding for higher contents of ascorbic acid and P-active substances in fruit. A pattern of the inheritance of biologically active substances in apple fruits is shown. First time in Russia a large-scale selection has taken place for the purpose of developing domestic scab immune apple varieties (Vf ). 20 scab immune varieties have been created and included into the State Register. First time in Russia and in the world a range of triploid apple varieties have been developed through directed diverse chromosome crossings 2x x 4x and 4x x 2x.

In the conditions of Forest Steppe Zone of Ukraine a long term (1977 to 2007) research were conducted over the construction of apple plantations of different pomology varieties using vegetative low height shoots and low height insertions. The analyzes of consumption values of Aidarder pomology variety yield throughout the entire fruit-bearing span certified that the major part of the harvest consisted of the fruits of the highest and the first commercial grades. Consumption qualities of Aidarder variety fruits over the early vegetation span significantly exceeded relevant indices registered for the period of 16 to 19 years of vegetation. That is, where the total of the highest and first grades ranged within 66% to 80% of the full harvest weight, two cuttings being grown, at the age of thirteen, then, as the age of the plantation was increasing the was decreasing, eventually to the range of 63% to 68% of the full weight of the fruits. Comparison of the data obtained on fruits marketability against the yield level over relevant period exposed a renowned in horticulture trend of marketability decrease due to high yield. As regards the planting constructions where the lo height insertions are used the Aidarder variety displayed higher marketability of fruits, however, the trend was not absolute. In some variants of the test (11 years old trees free of insertion, cutting in winter dates applied) the Rubinove Duky variety provided greater by 6,8% amount of higher quality fruits. The research over consumption value of the apple fruits has shown that these were changing irrespective of the construction and the age of the plantings. The augment of the first and the highest commercial grades is only possible with low height cuttings or insertions applied at summer dates for the procedure of cutting. The weight of apple fruits depended on the varietal properties and were increasing in the constructions of low height constructions as long as low height M.9 insertion was in use.

In the conditions of Forest Steppe Zone of Ukraine a long term (1977 to 2007) research were conducted over the construction of apple plantations of different pomology varieties using vegetative low height shoots and low height insertions. The analyzes of consumption values of Aidarder pomology variety yield throughout the entire fruit-bearing span certified that the major part of the harvest consisted of the fruits of the highest and the first commercial grades. Consumption qualities of Aidarder variety fruits over the early vegetation span significantly exceeded relevant indices registered for the period of 16 to 19 years of vegetation. That is, where the total of the highest and first grades ranged within 66% to 80% of the full harvest weight, two cuttings being grown, at the age of thirteen, then, as the age of the plantation was increasing the was decreasing, eventually to the range of 63% to 68% of the full weight of the fruits. Comparison of the data obtained on fruits marketability against the yield level over relevant period exposed a renowned in horticulture trend of marketability decrease due to high yield. As regards the planting constructions where the lo height insertions are used the Aidarder variety displayed higher marketability of fruits, however, the trend was not absolute. In some variants of the test (11 years old trees free of insertion, cutting in winter dates applied) the Rubinove Duky variety provided greater by 6,8% amount of higher quality fruits. The research over consumption value of the apple fruits has shown that these were changing irrespective of the construction and the age of the plantings. The augment of the first and the highest commercial grades is only possible with low height cuttings or insertions applied at summer dates for the procedure of cutting. The weight of apple fruits depended on the varietal properties and were increasing in the constructions of low height constructions as long as low height M.9 insertion was in use.

Assessment is made for heat-resistance of 10 promising domestic and foreign apple varieties, as well as for their drought- resistance (leaf tissue water content, water holding capacity and turgorescence); also, impact of weather conditions on implementation of its drought and heat resistance by the research subject is determined. The article highlights the best in Ukraine’s Forest-Steppe environment by the above economical and biological properties apple varieties.

Assessment is made for heat-resistance of 10 promising domestic and foreign apple varieties, as well as for their drought- resistance (leaf tissue water content, water holding capacity and turgorescence); also, impact of weather conditions on implementation of its drought and heat resistance by the research subject is determined. The article highlights the best in Ukraine’s Forest-Steppe environment by the above economical and biological properties apple varieties.

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 agrobiological characteristics of immune to scab apple varieties developed in VNIISPK are given. The prospects of scab immunity and triploidy unification in one genotype are emphasized. The characteristics of the first immune to scab triploid apple varieties are given.

The agrobiological characteristics of immune to scab apple varieties developed in VNIISPK are given. The prospects of scab immunity and triploidy unification in one genotype are emphasized. The characteristics of the first immune to scab triploid apple varieties are given.

Purpose. To determine the content of biochemical compounds in fruits of M. domestica Borkh. varietal samples, select the most promising ones for use in further breeding, and recommend for use in various directions, given the biochemical complex of signs, taste and marketability of the fruit. Methods. We used generally accepted methods for determining the biochemical composition of fruits (soluble so­lids (SSR) according to GOST (State Standard System) 29030-91, total sugars according to GOST 8756-13.87; polyphenol composition according to the method of L. I. Vigorov (1968), vitamin C according to the method of A I. Ermakov (1972); tit­rated acids – according to GOST 25555.0-82). Results. Nine cultivars of apple trees were analyzed for the biochemical composition of fruits, namely the apple tree cultivar ‘Vydubytska Plakucha’ (‘V. p.’) and various hybrids created on its basis from the collection of the fruit plant acclimatization department of the M. M. Hryshko National Botanical Gardens of National Academy of Sciences of Ukraine. Selected forms are sources of 1–5 important biochemical characteristics (solids content, glucose, sugars, ascorbic acid, titratable acid) and promising for use in breeding. According to the dry matter content – the lowest rate was found in hybrid ‘V. p.’ × ‘Renet Symyrenko’ (16.68%), the highest in the hybrid – ‘V. p.’ × ‘Renet Oranzhevyi Coksa’ (22.87%), rates of ascorbic acid content varied within (6.0–12.25 mg%), total sugars (10.37–18.23), acids (0.74–1,67 respectively). The most interesting for introduction and breeding are hybrids with a high content of biochemical parameters, namely: ‘V. p.’ × ‘Renet Oranzhevyi Coksa’, ‘V. p.’ × ‘Golden Delicious’ and ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’. Conclusions. The content of the biochemical composition of the fruits, taste and marketability were characterized, and varietal samples of hybrids of the apple tree ‘Vydubytska Plakucha’ were distributed in the directions of use in order to improve the quality of life of the population. According to the biochemical indicators of the cluster analysis of the studied apple hybrids, close relationships were found between the three groups necessary in the future for breeding when selecting parental forms for an improved biochemical composition of the fruit (including hybrids ‘V. p.’ × ‘Renet Oranzhevyi Coksa’, ‘V. p.’ × ‘Golden Delicious’ and ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’, titrated acid hybrids ‘V. p.’ × ‘Starkrimson’, ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’ and ‘V. p.’ × ‘Renet Symyrenko’, tannins hybrids ‘V. p.’ × ‘Slava Peremozhtsiam’ and ‘V. p.’ × ‘Starkrimson’); and to expand the assortment of apple trees according to the planned commercial signs. Hybrids of the apple-tree cultivar ‘Vydubytska Plakucha’, created in the NBG using old and valuable modern apple-tree cultivars, indicate the promise of producing high-yielding, large-fruited varieties with a high content of biologically active substances

Purpose. To determine the content of biochemical compounds in fruits of M. domestica Borkh. varietal samples, select the most promising ones for use in further breeding, and recommend for use in various directions, given the biochemical complex of signs, taste and marketability of the fruit.Methods. We used generally accepted methods for determining the biochemical composition of fruits (soluble so­lids (SSR) according to GOST (State Standard System) 29030-91, total sugars according to GOST 8756-13.87; polyphenol composition according to the method of L. I. Vigorov (1968), vitamin C according to the method of A I. Ermakov (1972); tit­rated acids – according to GOST 25555.0-82).Results. Nine cultivars of apple trees were analyzed for the biochemical composition of fruits, namely the apple tree cultivar ‘Vydubytska Plakucha’ (‘V. p.’) and various hybrids created on its basis from the collection of the fruit plant acclimatization department of the M. M. Hryshko National Botanical Gardens of National Academy of Sciences of Ukraine. Selected forms are sources of 1–5 important biochemical characteristics (solids content, glucose, sugars, ascorbic acid, titratable acid) and promising for use in breeding. According to the dry matter content – the lowest rate was found in hybrid ‘V. p.’ × ‘Renet Symyrenko’ (16.68%), the highest in the hybrid – ‘V. p.’ × ‘Renet Oranzhevyi Coksa’ (22.87%), rates of ascorbic acid content varied within (6.0–12.25 mg%), total sugars (10.37–18.23), acids (0.74–1,67 respectively). The most interesting for introduction and breeding are hybrids with a high content of biochemical parameters, namely: ‘V. p.’ × ‘Renet Oranzhevyi Coksa’, ‘V. p.’ × ‘Golden Delicious’ and ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’.Conclusions. The content of the biochemical composition of the fruits, taste and marketability were characterized, and varietal samples of hybrids of the apple tree ‘Vydubytska Plakucha’ were distributed in the directions of use in order to improve the quality of life of the population. According to the biochemical indicators of the cluster analysis of the studied apple hybrids, close relationships were found between the three groups necessary in the future for breeding when selecting parental forms for an improved biochemical composition of the fruit (including hybrids ‘V. p.’ × ‘Renet Oranzhevyi Coksa’, ‘V. p.’ × ‘Golden Delicious’ and ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’, titrated acid hybrids ‘V. p.’ × ‘Starkrimson’, ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’ and ‘V. p.’ × ‘Renet Symyrenko’, tannins hybrids ‘V. p.’ × ‘Slava Peremozhtsiam’ and ‘V. p.’ × ‘Starkrimson’); and to expand the assortment of apple trees according to the planned commercial signs. Hybrids of the apple-tree cultivar ‘Vydubytska Plakucha’, created in the NBG using old and valuable modern apple-tree cultivars, indicate the promise of producing high-yielding, large-fruited varieties with a high content of biologically active substances | Мета. Визначити вміст біохімічних сполук у плодах сорто-зразків M. domestica Borkh., відібрати найперспективніші для використання у подальшій селекції та рекомендувати для застосування у різних напрямках, враховуючи комплекс біохімічних ознак, смакові і товарні якості плодів.Методи. Використовували загальноприйняті методики визначення біохімічного складу плодів: розчинні сухі речовини – за ГОСТ 29030-91; загальні цукри – за ГОСТ 8756-13.87; поліфенольний склад – за методикою Л. И. Вигорова (1968); вітамін С – за методикою А. И. Ермакова та ін. (1972); титровані кислоти – за ГОСТ 25555.0-82.Результати. Було проаналізовано дев’ять сортозразків яблуні за біохімічним складом плодів, а саме сорт яблуні ‘Видубицька плакуча’ (‘В. п.’) та створені на її основі різні гібриди із колекції відділу акліматизації плодових рослин Національного ботанічного саду (НБС) імені М. М. Гришка НАН України. Плоди збирали за їхньої комерційної зрілості. Добрані форми є джерелами 1–5 важливих біохімічних ознак (вміст сухих речовин, глюкози, цукрів, аскорбінової кислоти, титрованої кислоти) і перспективні для використання у селекції. За вмістом сухої речовини найнижчий показник було виявлено у гібрида ‘В. п.’ × ‘Ренет Симиренка’ (16,68%), найвищий – у гібрида ‘В. п. ’ × ‘Ренет оранжевий Кокса’ (22,87%), показники вмісту аскорбінової кислоти варіювали в межах 6,0–12,25 мг%, загальні цукри – 10,37–18,23, кислоти – 0,74–1,67, відповідно. Найцікавішими для інтродукції та селекції були гібриди із найвищим комплексом вмісту біохімічних показників, а саме: ‘В. п. ’ × ‘Ренет оранжевий Кокса’, ‘В. п.’ × ‘Голден Делішес’ та ‘В. п.’ × ‘Пармен зимовий золотий’.Висновки. Охарактеризовано вміст біохімічного складу плодів, їхні смакові і товарні якості і розподілено сортозразки гібридів яблуні ‘Видубицька плакуча’ за напрямами використання для покращення якості життя населення. За біохімічними показниками у результаті кластерного аналізу досліджених гібридів яблуні було виявлено щільні взаємозв’язки, які необхідні у майбутньому для селекції під час відбору батьківських форм на поліпшений біохімічний склад плодів (зокрема, за високим умістом сухої речовини виділено гібриди ‘В. п.’ × ‘Ренет оранжевий Кокса’, ‘В. п.’ × ‘Голден Делішес’ та ‘В. п.’ × ‘Пармен зимовий золотий’; за вмістом титрованих кислот – гібриди ‘В. п.’ × ‘Старкримсон’, ‘В. п.’ × ‘Пармен зимовий золотий’ та ‘В. п.’ × ‘Ренет Симиренка’; за вмістом дубильних речовин – гібриди ‘В. п.’ × ‘Слава Переможцям’ та ‘В. п.’ × ‘Старкримсон’) та для розширення сор­тименту яблунь за запланованими комерційними ознаками. Створені у НБС гібриди сорту яблуні ‘Видубицька плакуча’ з використанням старих та цінних сучасних сортів яблуні свідчать про перспективність отримання високоврожайних, великоплідних сортів з високим умістом біологічно активних речовин. | Цель. Определить содержание биохимических соединений в плодах сортообразцов M. domestica Borkh., отоб­рать наиболее перспективные с целью использования в дальнейшей селекции и рекомендовать для применения в различных направлениях, учитывая биохимический комплекс признаков, вкусовые и товарные качества плодов. Методы. Использовали общепринятые методики определения биохимического состава плодов (растворимые сухие вещества (ССР) – по ГОСТ 29030-91; общие сахара – по ГОСТ 8756-13.87; полифенольный состав – по методике Л. И. Вигорова (1968), витамин С – по методике А. И. Ермакова (1972); титрованные кислоты – по ГОСТ 25555.0-82). Результаты. Были проанализированы девять сортообразцов яблони по биохимическому составу плодов, а именно сорт яблони ‘Видубицька плакуча’ и созданные на ее основе различные гибриды из коллекции отдела акклиматизации плодовых растений Национального ботанического сада (НБС) имени Н. Н. Гришко НАН Украины. Отборные формы являются источниками 1–5 важных биохимических признаков (содержание сухих веществ, глюкозы, сахаров, аскорбиновой кислоты, титруемой кислоты) и перспективные для использования в селекции. По содержанию сухого вещества самый низкий показатель обнаружен у гибрида ‘В. п.’ × ‘Ренет Симиренко’ (16,68%), самый высокий – у гибрида ‘В. п.’ × ‘Ренет оранжевый Кокса’ (22,87%), показатели содержания аскорбиновой кислоты варьировали в пределах 6,0–12,25 мг%, общие сахара – 10,37–18,23, кислоты – 0,74–1,67, соответственно). Наибольший интерес для интродукции и селекции составляли гибриды с высоким комплексом содержания биохимических показателей, а именно: ‘В. п.’ × ‘Ренет оранжевый Кокса’, ‘В. п.’ × ‘Голден Делишес’ и ‘В. п.’ × ‘Пармен зимний золотой’. Выводы. Охарактеризованы содержание биохимического состава плодов, вкусовые и товарные качества и распределены сортообразцы гибридов яблони ‘Видубицька плакуча’ по направлениям использования для улучшения качества жизни населения. По биохимическим показателям в результате кластерного анализа исследованных гибридов яблони обнаружены плотные взаимосвязи трех групп, необходимых в будущем для селекции при отборе родительских форм на улучшенный биохимический состав плодов (в частности, по высокому содержанию сухого вещества выделено гибриды ‘В. п.’ × ‘Ренет оранжевый Кокса’, ‘В. п.’ × ‘Голден Делишес’ и ‘В. п.’ × ‘Пармен зимний золотой’, по содержанию тит­руемых кислот – гибриды ‘В. п.’ × ‘Старкримсон’, ‘В. п.’ × ‘Пармен зимний золотой’ и ‘В. п.’ × ‘Ренет Симиренко’ по содержанию дубильных веществ – гибриды ‘В. п.’ × ‘Слава Победителям’ и ‘В. п.’ × ‘Старкримсон’) и для расширения сортимента яблонь по запланированным коммерческим признакам. Созданные в НБС гибриды сорта яблони ‘Видубицька плакуча’ с использованием старых и ценных современных сортов яблони свидетельствуют о перспективности получения высокоурожайных, крупноплодных сортов с высоким содержанием биологически активных веществ.

Purpose. To determine the content of biochemical compounds in fruits of M. domestica Borkh. varietal samples, select the most promising ones for use in further breeding, and recommend for use in various directions, given the biochemical complex of signs, taste and marketability of the fruit. Methods. We used generally accepted methods for determining the biochemical composition of fruits (soluble so­lids (SSR) according to GOST (State Standard System) 29030-91, total sugars according to GOST 8756-13.87; polyphenol composition according to the method of L. I. Vigorov (1968), vitamin C according to the method of A I. Ermakov (1972); tit­rated acids – according to GOST 25555.0-82). Results. Nine cultivars of apple trees were analyzed for the biochemical composition of fruits, namely the apple tree cultivar ‘Vydubytska Plakucha’ (‘V. p.’) and various hybrids created on its basis from the collection of the fruit plant acclimatization department of the M. M. Hryshko National Botanical Gardens of National Academy of Sciences of Ukraine. Selected forms are sources of 1–5 important biochemical characteristics (solids content, glucose, sugars, ascorbic acid, titratable acid) and promising for use in breeding. According to the dry matter content – the lowest rate was found in hybrid ‘V. p.’ × ‘Renet Symyrenko’ (16.68%), the highest in the hybrid – ‘V. p.’ × ‘Renet Oranzhevyi Coksa’ (22.87%), rates of ascorbic acid content varied within (6.0–12.25 mg%), total sugars (10.37–18.23), acids (0.74–1,67 respectively). The most interesting for introduction and breeding are hybrids with a high content of biochemical parameters, namely: ‘V. p.’ × ‘Renet Oranzhevyi Coksa’, ‘V. p.’ × ‘Golden Delicious’ and ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’. Conclusions. The content of the biochemical composition of the fruits, taste and marketability were characterized, and varietal samples of hybrids of the apple tree ‘Vydubytska Plakucha’ were distributed in the directions of use in order to improve the quality of life of the population. According to the biochemical indicators of the cluster analysis of the studied apple hybrids, close relationships were found between the three groups necessary in the future for breeding when selecting parental forms for an improved biochemical composition of the fruit (including hybrids ‘V. p.’ × ‘Renet Oranzhevyi Coksa’, ‘V. p.’ × ‘Golden Delicious’ and ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’, titrated acid hybrids ‘V. p.’ × ‘Starkrimson’, ‘V. p.’ × ‘Parmen Zymovyi Zolotyi’ and ‘V. p.’ × ‘Renet Symyrenko’, tannins hybrids ‘V. p.’ × ‘Slava Peremozhtsiam’ and ‘V. p.’ × ‘Starkrimson’); and to expand the assortment of apple trees according to the planned commercial signs. Hybrids of the apple-tree cultivar ‘Vydubytska Plakucha’, created in the NBG using old and valuable modern apple-tree cultivars, indicate the promise of producing high-yielding, large-fruited varieties with a high content of biologically active substances

To analyse the modern classification and nomenclature of species of pome fruit crops which varieties are listed in the State Register of Plants Varieties Suitable for Dissemination in Ukraine, and improve terminological system of the Ukrainian names of both species and garden crops. Results. Fruit cultivars and most apple clonal rootstocks belong to Malus pumila, and ornamental cultivars belong to Malus gloriosa. The most common scientific name of the cultivated apple, especially among horticulturists, is Malus domestica, although according to the principle of priority the name Malus pumila should have the advantage. As far as Nomenclature Committee for Vascular Plants has rejected the proposal to conserve the name Malus domestica, Malus pumila is correct name for the cultivated apple. The use of synonymic name Malus domestica should be avoided in both scientific and scientific-popular papers for stability of nomenclature. Pear cultivars listed in the State Register of Plants Varieties Suitable for Dissemination in Ukraine are presented by Pyrus communis, and pear rootstocks – by Cydonia oblonga. Fruit cultivars of the latter belong to separate fruit crop named quince. An apple-quince hybrid was registered as universal clonal rootstock for pome fruit crops. The State Register of Plants Varieties Suitable for Dissemination in Ukraine also contains nonconventional fruit crops such as Chaenomeles and hawthorn that consist of some species and nothospecies. Conclusions. In scientific publications one should stop the use of synonymic name Malus domestica in favour of the correct name for cultivated apple Malus pumila. Apple, pears and Chaenomeles cultivars listed in the State Register of Plants Varieties Suitable for Dissemination in Ukraine have a complex multispecies origin whereas quince, hawthorn and pear roostock cultivars systematically are monospecies. A universal roootstock of pome fruit crops is Cydolus, or apple-quince, that resulted from interspecies hybridization between quince and apple. Refusal Refuse to use obsolete names of fruit plants species will promote harmonization of professional language.

To analyse the modern classification and nomenclature of species of pome fruit crops which varieties are listed in the State Register of Plants Varieties Suitable for Dissemination in Ukraine, and improve terminological system of the Ukrainian names of both species and garden crops. Results. Fruit cultivars and most apple clonal rootstocks belong to Malus pumila, and ornamental cultivars belong to Malus gloriosa. The most common scientific name of the cultivated apple, especially among horticulturists, is Malus domestica, although according to the principle of priority the name Malus pumila should have the advantage. As far as Nomenclature Committee for Vascular Plants has rejected the proposal to conserve the name Malus domestica, Malus pumila is correct name for the cultivated apple. The use of synonymic name Malus domestica should be avoided in both scientific and scientific-popular papers for stability of nomenclature. Pear cultivars listed in the State Register of Plants Varieties Suitable for Dissemination in Ukraine are presented by Pyrus communis, and pear rootstocks – by Cydonia oblonga. Fruit cultivars of the latter belong to separate fruit crop named quince. An apple-quince hybrid was registered as universal clonal rootstock for pome fruit crops. The State Register of Plants Varieties Suitable for Dissemination in Ukraine also contains nonconventional fruit crops such as Chaenomeles and hawthorn that consist of some species and nothospecies. Conclusions. In scientific publications one should stop the use of synonymic name Malus domestica in favour of the correct name for cultivated apple Malus pumila. Apple, pears and Chaenomeles cultivars listed in the State Register of Plants Varieties Suitable for Dissemination in Ukraine have a complex multispecies origin whereas quince, hawthorn and pear roostock cultivars systematically are monospecies. A universal roootstock of pome fruit crops is Cydolus, or apple-quince, that resulted from interspecies hybridization between quince and apple. Refusal Refuse to use obsolete names of fruit plants species will promote harmonization of professional language.

New results of the clonal selection of apple tree (Malus domestica Borkh) conducted at Podillya Research Station of Horticultural Institute NAAS by method of state variety testing have been presented. By the results of the 6-year studying (2007 - 2012) of 20 new Jonagold clones of domestic selection their estimation was carried out according to the complex of such qualities as productivity, early ripening, marketability, taste qualities and durability of fruits. The following clones are defined to be the best: DP-16, DP-17, DP-18, DP-20. They start fruiting in the age of 2 or 3 years, productivity of the 5- or 6-year-old trees reaches 8,3–25,5 tons per hectare, quantity of the fruits of the highest and first grade is about 57–76% (in 2010–2012). Fruits of the mentioned clones are bigger than medium size (DP-16), big (DP-17, DP-18) and very big (DP-20); they have average similarity, excellent and very harmonious sour-sweet taste (8,3–8,7 points). Fruits of the best clones kept their quality for 202 – 220 days.

New results of the clonal selection of apple tree (Malus domestica Borkh) conducted at Podillya Research Station of Horticultural Institute NAAS by method of state variety testing have been presented. By the results of the 6-year studying (2007 - 2012) of 20 new Jonagold clones of domestic selection their estimation was carried out according to the complex of such qualities as productivity, early ripening, marketability, taste qualities and durability of fruits. The following clones are defined to be the best: DP-16, DP-17, DP-18, DP-20. They start fruiting in the age of 2 or 3 years, productivity of the 5- or 6-year-old trees reaches 8,3–25,5 tons per hectare, quantity of the fruits of the highest and first grade is about 57–76% (in 2010–2012). Fruits of the mentioned clones are bigger than medium size (DP-16), big (DP-17, DP-18) and very big (DP-20); they have average similarity, excellent and very harmonious sour-sweet taste (8,3–8,7 points). Fruits of the best clones kept their quality for 202 – 220 days.

The author has estimated the effect of the cultivar-rootstock interaction peculiarities on the parameters of the apple winter cvs ‘Ascol`da’ and ‘Spartan’ on the IS series rootstocks. Dwarf and semi – dwarf combinations have been selected which are the most favourable for the establishment of this crop high – densed orchards in the Lisosteppe of Ukraine.

The author has estimated the effect of the cultivar-rootstock interaction peculiarities on the parameters of the apple winter cvs ‘Ascol`da’ and ‘Spartan’ on the IS series rootstocks. Dwarf and semi – dwarf combinations have been selected which are the most favourable for the establishment of this crop high – densed orchards in the Lisosteppe of Ukraine.