Demir Kara is a technical grape variety of medium ripening period, belonging to the Western European ecological-geographical group. The bushes of this variety are vigorous, with large five-lobed leaves that have deep incisions and weak webby and bristle-like pubescence. The clusters of Demir Kara are of medium weight, cylindrical-conical in shape, and have a dense structure, while the berries are round or slightly flattened, dark blue-black in color, covered with a thin waxy bloom. The berry juice is colorless; they contain a significant amount of sugars - about 19-22 g per 100 cm³, while acidity varies within 7-8 g per dm³.
The variety is characterized by high yield, reaching an average of 112.5 centners per hectare, and good winter hardiness, capable of withstanding temperatures down to -22°C. However, Demir Kara is susceptible to diseases such as downy mildew, powdery mildew, and gray mold, as well as damage from grape leafroller and grape mite. Despite this, the variety is drought-tolerant, making it suitable for cultivation in various climatic conditions.
The main application of the variety is the production of ordinary fortified wines, which receive approximately 7.8 points in tasting evaluation. High sugar content and balanced acidity ensure quality wine characteristics. Demir Kara is of interest to viticulturists and winemakers due to the combination of high yield, good winter hardiness, and potential for creating fortified wines with a rich flavor.
