Abstract
The paper presents the results of a varietal study of autochthonous Georgian wine varieties with white berries: Goruli mtsvane, Grdzelmtevana, Grubela and with colored berries: Adreuli Shavi, Alexandrouli, Mujuretuli, Nakutvneuli. Control varieties were Riesling Reinskiy for white vines and Cabernet Sauvignon for red ones. The stud-ies were carried out in 2018–2020. The study of grapevine varieties was carried out using meth-ods generally accepted in viticulture. According to the results of the study, based on research re-ports and journals of the collection, data of ag-robiological indicators, yields, crop conditions, and degustation evaluations are presented. A high percentage of blossoming eyes had the vari-eties Adreuli Shavi – 84.2, Grdzelmtevana – 82.8 and Mujuretuli – 81.5. In the control varie-ties Riesling Rhine and Cabernet Sauvignon, this indicator was at the level of 70.7% and 75.8%, respectively. The highest sugar accumulation had varieties: Mujuretuli (23.6 g/100 cm3), Cabernet Sauvignon (23.2 g/100 cm3) and Goruli Mtsvane (23.0 g/100 cm3). In the group of white varieties, tasting scores at the level of the control variety Riesling Reinskiy (8.7 points) were received by wines from varieties – Grubela and Goruli Mtsvane. In the group of red wine grape varie-ties, the Alexandrouli wine received the highest score – 8.7 points, the control variety Cabernet Sauvignon was rated at 8.6 points. According to the results of the study, the varieties Goruli mtsvane, Grubela, Alexandrouli exceed the con-trol ones in terms of the totality of indicators and are recommended for use in grapevine breeding as sources of wine quality.
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