AGROBIOLOGICAL AND ENOLOGICAL CHARACTERISTICS OF PROMISING SAPERAVI CLONES IN THE CONDITIONS OF THE BLACK SEA AGROECOLOGICAL ZONE OF VITICULTURE
Authors:   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia, Marmorshtein Anna Aleksandrovna , Aleynikova Galina Yurievna ,   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia, Ilnitskaya Elena Tarasovna ,   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia, Kozina Tatiana Dmitrievna ,   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia, Makarkina Marina Victorovna ,   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia, Pyata Elena Georgievna ,   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia, Kotlyar Victoria Konstantinovna ,   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia, Shirshova Anastasia Alexandrovna ,   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia, Mitrofanova Ekaterina Aleksandrovna ,   Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», Krasnodar, Russia
Published: June 2024

Clone breeding is one of the promising directions for obtaining productive, high-quality, adaptable to local conditions grape genotypes. The Saperavi variety is a classic for the winemaking of the Caucasus, therefore, its preservation for further production in the conditions of modern climate change is an urgent task. The present study is aimed at identifying clones of the Saperavi variety with improved yield and wine quality indicators that preserve productivity and adaptability to local conditions. The place of research is subzone № 1 of the Black Sea agroecological zone of viticulture, moderate continental climate, soils are southern chernozems. 2023 was much warmer compared to the climatic averages. 10 bushes (C1-C10) were isolated without visual signs of viral, bacterial and phytoplasmic infections, which, according to the results of DNA analysis, have a Saperavi DNA profile from the international VIVC database. According to the data of resistance to winter conditions, variants C2, C4, C6, C8 and C10 were distinguished, according to agrobiological records – C1, C7, C8 and C9, according to the average weight of the bunch – C1, C3, C5, C6 and C8; according to the yield per bush – C10, according to the productivity of the shoot – C2, C3 and C10. The qualitative indicators of the yield (the mass concentration of sugars and titrated acids in berry juice) were high in all variants. According to the volume fraction of ethyl alcohol, the mass concentration of titrated acids, volatile acids and the reduced extract of wine materials, all samples showed values corresponding to GOST. According to the mass concentration of sugars in dry wine in bulk, variants C1, C2, C6 and C10 were distinguished, according to the sum of phenolic substances – C2, C8 and C10, according to the sum of coloring substances – C2, C3 and C8. According to the tasting assessment, variants C3 and C6 were noted. Variants C2, C6 and C10 were determined based on a set of characteristics (resistance to winter conditions, moderate productivity and high quality of yield and wine products). Key words: GRAPES, CLONE BREEDING, PROTOCLONS, VITICULTURE, ZONING VITICULTURE