A COMPARATIVE STUDY OF THE TECHNOLOGICAL POTENTIAL OF SEV ARENI VARIETY AND ARENI CLONE No. 9

Abstract

This study analyzes the physicochemical and colorimetric characteristics of red dry wines produced from the Sev Areni grape variety and its Clone No. 9, with the objective of evaluating the impact of clonal variation on the wine quality. Such a research approach is highly relevant because even within a single traditional grape variety, clonal differences can significantly influence not only the chemical composition of grapes and wines but also their sensory and technological properties. The wines were obtained under carefully controlled microvinification conditions using identical technological processes. This experimental design minimized the effect of external factors, allowing the comparison to focus specifically on the role of varietal and clonal diversity. By applying a uniform protocol, the study ensured that the observed differences could be attributed to genetic factors rather than winemaking practices. Analyses were carried out in accordance with OIV and EAEU GOST methodologies and included quantification of ethyl alcohol, total and volatile acidity, sulfur compounds, as well as phenolic and pigment compounds. Additional assessment of color intensity and hue provided a more comprehensive understanding of the wines’ chromatic attributes and allowed for a detailed comparison of their appearance.

The results showed that wines from the parent Sev Areni variety contained higher levels of alcohol, anthocyanins, and total phenolics, which contributed to deeper coloration, a richer structure, and greater potential for aging. In contrast, wines from Clone No. 9 exhibited a milder phenolic profile, lower volatile acidity, and enhanced antioxidant protection, making them particularly suitable for the production of light red and rosy wines. Overall, the study emphasizes the role of clonal selection in shaping the wine quality and technological orientation, demonstrating that the targeted use of clones can expand the product diversity and ensure a stable quality across vintages.