Pridelava grozdja žlahtne vinske trte (Vitis vinifera L.) sorte 'Refošk' in vina teran PTP na Krasu

Kovačič, Ana (author), Rusjan, Denis (mentor)

Vinska trta (Vitis vinifera L.) sorte ‘refošk’ je lokalna in udomačena sorta, ki se tradicionalno prideluje v vinorodnem okolišu Kras. Razširjenost pridelave sorte ‘refošk’ in pridelave vina teran PTP na Krasu v obdobju od 2006 do 2020 smo ugotavljali s podatki iz Registra pridelovalcev grozdja in vina, arhiva iz Kmetijsko gozdarskega zavoda Nova Gorica in Bakhusa. S tem smo želeli ovrednotiti povprečno kakovost grozdja in vina iz sorte ‘refošk’. Sorta ‘refošk’ zaokrožuje 75 % kraških vinogradov in njena pridelava zavzema prvo mesto. V zadnjem desetletju se je pridelava sorte ‘refošk’ na Krasu zmanjšala za 50 ha. Število posajenih trt te sorte se je zmanjšalo za 52.405. Povprečno kakovost grozdja sorte ‘refošk’ v obdobju 2006–2020 bi lahko opisalo kot: povprečna masa 100 jagod okrog 220 g, povprečna vsebnost sladkorjev 18,5 °Brix, 11,4 g/l skupnih kislin ter povprečni pH 2,81. Vina teran PTP, analizirana od 2006 do 2020, so v povprečju vsebovala 11,64 vol. % alkohola, 28 g/l skupnega ekstrakta, 7,9 g/l skupnih kislin in pH 3,26. Pri senzoričnem ocenjevanju je vino doseglo povprečno oceno 17,1 točke, kar ga uvršča med kakovostna vina z zaščitenim geografskim poreklom. Vino teran PTP je temno rdeče barve, z manjšo vsebnostjo alkohola in večjo vsebnostjo kislin ter je eno izmed bolj znanih rdečih vin v Sloveniji.

• Language: Slovenian
• Keywords: Vinogradništvo, pridelava, grozdje, vino, refošk, teran, Kras
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [A. Kovačič]
• Year: 2022
• PID: 20.500.12556/RUL-137465
• UDC: 634.853(497.49)(043.2)
• COBISS.SI-ID: 112202755
• Publication date in RUL: 18.06.2022

Secondary language

• Language: English
• Title: Production of grapes of the grapevine (vitis vinifera l.) 'variety 'refošk' and teran PTP wine on carst

Abstract

The grapevine (Vitis vinifera L.) ‘Refošk’ is a local and domesticated variety traditionally grown in the Kras winegrowing district. The production of ‘Refošk’ variety and teran PTP wine in the Kras winegrowing region in the period from 2006 to 2020 was evaluated using data from the Register of Grape and Wine Producers, the archive of the Agricultural Forestry Institute Nova Gorica and Bakhus. We also wanted to evaluate the average quality of grapes and wine of the ‘Refošk’ variety. In the last ten years the cultivation of the ‘Refošk’ variety in Kras has decreased for 50 ha, while the number of vines for 52.405. The grape quality of the ‘Refošk’ variety grown in the Kras district is characterized by an average weight of 100 berries around 220 g, an average sugars content of 18.5 °Brix, a total acidity of 11.4 g/l and a pH value of 2.81. The wines teran PTP, analysed from 2006 to 2020, had an average alcohol content of 11.64 % by volume, a total dry extract content of 28 g/l of, a total acidity of 7.9 g/l of and pH of 3.26. At the sensory evaluation, the wines scored an average of 17.1 points and thus belong to the quality wines with Protected Designation of Origin. We can emphasise that teran PTP is a wine with dark red colour, lower alcohol content and higher acidity. teran PTP is one of the most famous red wines in Slovenia.

• Keywords: Viticulture, production, grape, wine, Refošk, Teran, Carst