Variety “Rebula” (Vitis vinifera L.) determines the terroir Goriška brda “Collio” in Slovenia

A «terroir» is a group of vineyards from the same region, belonging to a specific appellation, and sharing the same type of soil, weather conditions, grapes and wine making savoir-faire, which contribute its specific personality to the wine. White wine variety «Rebula» or «Ribolla gialla» is a local and traditional variety, which is mentioned already in XIII. century like variety for tax paying and merchandise. «Rebula» became the most popular and known variety from «Goriška brda» winegrowing region; therefore it is competitive to terroir determination, including main ecological characteristics indeed. The vineyards with « Rebula » are located on three different soil types, saturated soil (active lime, appearance of grits), anthropogenized soil (vitisol, larger mineral, particles and active lime) and coluvial soil (active lime, high groundwater level) an also on different altitudes, where different grape quality of «Rebula» is observed. The four different terroirs of soil type and climatic characteristics are determined in Goriška brda, where the vineyards of « Rebula » are cultivated on terraces, plateaus and plans. The production of «Rebula» still increases, therefore the best interactions among weather conditions, soil type and cultivation practices of «Rebula», for the same object as the best grape quality, have to be determined in near future.

Authors: Denis RUSJAN (1), Matija STRLIČ and Zora KOROŠEC-KORUZA (1)

(1) University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, SI-1000, Ljubljana, Slovenia
(2) University of Ljubljana, Faculty of Chemistry and Chemical Technology, Aškerčeva 5, SI-1000 Ljubljana, Slovenia

Email: denis.rusjan@bf.uni-lj.si

Keywords: grape, Rebula, quality, terroir, Goriška brda

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