In the herbarium of cultivated plants of the world, their wild relatives and weeds (WIR) a collection of nomenclatural standards for cultivars of domestic breeding is being created. Nomenclatural standards are carriers of the authenticity of the genetic information of the breeding achievements and should be kept indefinitely in the scientific herbarium collection. A herbarium sample collected with the direct participation of an expert, which can be the author of the cultivar or official representative of the author's breeding organization, is designated as the nomenclature standard. The nomenclatural standard confirms the originality of the cultivar, protects the copyright of its creators. The article publishes the nomenclature standards of 10 black currant (Ribes nigrum L.) cultivars, bred at Sverdlovsk Horticultural Breeding Station from 1983 to 1997 and included into the State Register of Breeding Achievements: Akkord (WIR-54112), Vasilisa (WIR-54115), Vympel (WIR-54118), Globus (WIR-54119), Dobry Dzhinn (WIR-54121), Pilot (WIR-54127), Slavyanka (WIR-54129), Udalets (WIR-54132), Fortuna (WIR-54133), Shaman (WIR-54134). In addition to the description of the nomenclature standards, the distinctive taxonomic and economically valuable traits of each cultivar are given. Herbarium samples of nomenclature standards are made in accordance with the recommendations of the International Code of Nomenclature for Cultivated Plants (ICNCP), registered in the database "VIR Herbarium" and included in the Herbarium of cultivated plants of the world, their wild relatives and weeds (WIR).

For the first time in Russia, N. I. Vavilov All-Russian Institute of Plant Genetic Resources (VIR) has initiated and is working on the creation of nomenclatural standards of domestic cultivars. The nomenclatural standard confirms the originality of the cultivar and protects the copyright of its creators. The article presents the nomenclatural standards of 8 black currant (Ribes nigrum L.) varieties bred at Sverdlovsk Horticultural Breeding Station, that are undergoing State variety testing: Ataman (WIR-54113), Viktorina (WIR-54116), Voevoda (WIR-54117), Dobrokhot (WIR-54120), Kornet (WIR-54124), Mushketer (WIR-54126), Napev Uralskiy (WIR-54135), Staratel (WIR-54130). Herbarium samples the plant material for which has been selected directly by the author of these varieties in the collection of the originator organization are taken as nomenclature standards. In addition to the description and photos of the nomenclature standards, the distinctive taxonomic and economically valuable features of each variety are given. The created nomenclature standards in the amount of 14 herbarium samples are made in accordance with the recommendations of the International Code of Nomenclature for Cultivated Plants (ICNCP), registered in the database "VIR Herbarium" and included to the type collection of the Herbarium of cultivated plants of the world, their wild relatives and weeds (WIR).

Резюме. В статье дана морфологическая, биологическая и хозяйственная характеристика нового сорта смородины черной Шаман селекции Сверд ловской селекционной станции садоводства. Сорт выделен за высокие адаптивные свойства к абио-и биотическим факторам внешней среды, вы сокие вкусовые качества ягод, стабильную урожайность, крупноплодность. Новый сорт смородины черной Шаман с 2018 г. районирован по Волго-Вятскому региону. Ключевые слова: сорт, смородина черная, зимостойкость, урожайность, качество ягод. Summary. The article gives the morphological, biological and economic characteristics of the new blackcurrant variety of Shaman breeding at the Sverdlovsk horticultural breeding station. The variety was revealed for high adaptive properties to abio-and biotic factors, high taste qualities of berries, stable yield, large-fruited. The new variety of black currant Shaman has been zoned in the Volga-Vyatka region since 2018.

In this work, nine varieties of red currant cultivars, recognized for use in the Sverdlovsk Oblast, were studied. According to the conducted analysis, the Epsilon cultivar demonstrated the highest antioxidant indicators (mmol/dm3eq) of 13.772 ±0.275. For comparison, the Ilyinka and Luchezarnaya cultivars showed the values of 12.826 ±0.257 and 11.933±0.239, respectively. The late ripening cultivar Zeta showed the lowest antioxidant value of 6.428±0.129 mmol/dm3eq. At the same time, the highest content of flavonoids was characteristic of such red currant cultivars (mg/100 g of edible part, variety) as Epsilon – 50.3±0.9, Beta – 44.2±0.9, Ogni Urala – 45.7±0.9 and Zeta – 17.3±0.3, while the Lychezarnaya cultivar showed the lowest value of 16.1±0.3. In terms of anthocyanins, the highest values (mg of cyanidin-3-glycoside/100 g of edible part) were observed in the Kapitalina, Ilyinka and Lychezarnaya cultivars, equalling 29.1±0.6, 38.1±0.7 and 41.2±0.8, respectively. The average ripening cultivar Alaya Zorka showed the lowest anthocyanin value of 11.9±0.2. The Kapitalina, Ilyinka and Luchezarnaya cultivars demonstrated the highest amounts of phenolic substances (mg of gallic acid/100 g of edible part) of 212.9±4.3, 235.1±4.7 and 168.3±3.3, respectively. In terms of this indicator, the Beta cultivar showed the lowest value of 114.1±2.3. The consumer characteristics of the cultivars were studied, including their acidity, as well as the content of total and reducing sugars. The obtained results can be used when selecting dietary supplements based on red currant berries and determining the nutritional value of diets in order to increase their overall antioxidant activity.

The unique scientific installation of the collection of live plants in the open ground "Gene pool of fruit, berry and ornamental crops in the Middle Urals" at the Sverdlovsk Breeding Station of Horticulture has about 2 thousand varieties and 80 thousand hybrids of fruit and berry crops, of which 45 varieties are red currant. The article presents the results of study of 10 red currant varieties of the South-Ural Scientific Research Institute of Horticulture and Potatoes in the conditions of the Sverdlovsk Region (Middle Urals). The prevailing weather conditions during the research period (2019-2022) affected the timing of the passage of the phenological phases of red currant varieties. In 2019 the beginning of bud break was noted from the 20th of April to the 25th of April, the beginning of flowering ‒ from the 5th of May to the 20th of May. In 2020-2021, the beginning of bud break was observed from April, 18th to April, 25th; the beginning of flowering ‒ from May, 8th to May, 13th. The beginning of ripening of berries in 2020 fell on the period from July, 14th to July, 16th; in 2021 ‒ from July, 6th to July, 8th. In 2022, the beginning of bud break was recorded from April, 26th to May, 1st, the beginning of flowering ‒ from May, 16th to May, 18th, the beginning of ripening ‒ from July, 16th to July, 18th. The shift in the dates of the onset of the main phases of vegetation can reach 10 days from the average long-term values. Preliminary results of a collection study of varieties of Chelyabinsk breeding have been obtained. On average, over 3 years of fruiting, the highest productivity was noted on the varieties Jota and Ogni Urala ‒ 1.07 kg/bush. The highest mass of berries was noted in the varieties Kapitalina, Jota, Il'inka, Beta: average ‒ 0.6...0.7 g, maximum ‒ 1.0...2.0 g. The varieties Jota, Al'fa, Alaya zor'ka, Kapitalina, Luchezarnaya, Beta, Epsilon differed in dessert taste. The highest content of antioxidants in red currant berries was found in varieties Luchezarnaya, Il'inka, Epsilon ‒ 10.99…12.65 mmol/dm3 eq.