Original scientific paper

THE EFFECT OF PARTIAL DEFOLIATION ON MONOTERPENE LEVELS OF GEWURZTRAMINER WINE (Vitis vinifera L.)

Marko Karoglan ; Faculty of Agriculture,University of Zagreb,Zagreb,Croatia
Bernerd Kozina ; Faculty of Agriculture,University of Zagreb,Zagreb,Croatia
Ana Jeromel ; Faculty of Agriculture,University of Zagreb,Zagreb,Croatia
Sandi Orlić ; Faculty of Agriculture,University of Zagreb,Zagreb,Croatia

Abstract

It is well known that different viticultural practices have an important influence on the quality of grapes, must and wine. Aiming to examine impact of partial defoliation we were measured composition of the aromatic components in the wine of Gewurztraminer, winegrowing hills of Zagreb, subregion Prigorje-Bilogora. Partial defoliation, i.e. removing of 4 (D1) and 8 (D2) basal leaves, conducted manually at veraison and grapevines without defoliation (ND-non defoliated) were used as control. Samples for analyses were taken after filtration, stabilization and bottling of wine. It was shown that the wine made from completely sun exposed grapes (D2), were the richest in the content of free volatile terpenes (FVT) and potentially volatile terpenes (PVT) respectively.

Keywords

Gewurztraminer; partial defoliation; free volatile terpenes; potentialy volatile terpenes

Hrčak ID:

25880

URI

https://hrcak.srce.hr/25880

Publication date:

17.7.2008.

Article data in other languages: croatian

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