Abstract
This paper aims to detect the effects of DMR (double reasoned maturation) method, and if it is able to increase the quality of Hungary’s most distributed white wine variety, Bianca. The resistant interspecific hybrid Bianca cultivar can accumulate high sugar content during ripening, but it is prone to drastic acid loss, which can lead to deficient microbiological stability of wines. The DMR method is suitable for achieving fruit with better sugar/acid ratio due to the shrinking of the berries. The DMR treatment was found to be a possible tool for avoiding rapid acid loss in Bianca juices. Early cutting of one-year-old wood and early harvest were found to be the ideal combination for increasing quality.
Highlights
The efficiency of grape production depends on the area suitability, as well as the adapting capacity of the cultivar
The total area of Bianca is over 5000 hectares (25–30% of the total area of the wine region), which shows the significance of the cultivar
We have examined the effects of the treatment on some finer parameters, such as catechin, total polyphenol content of the wine
Summary
The efficiency of grape production depends on the area suitability, as well as the adapting capacity of the cultivar. Regarding the stability of production, it is important to choose frost tolerant, high yielding cultivars with low manual labor requirements. This is the only way of cost-efficient cultivation. A good example of that trend is the Aletta cultivar, whose total area in the Kunság wine region increased from 0 to 1055 hectares between 2002 and 2012, or the Bianca cultivar, whose total area increased from 615 to 3748 hectares [1]. The total area of Bianca is over 5000 hectares (25–30% of the total area of the wine region), which shows the significance of the cultivar
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