Adaptation of canopy management practices to global climate change with the aim to produce well balanced, high quality wines (CROSBI ID 672940)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Bubola, Marijan ; Hegyi, Ádám István ; Plavša, Tomislav ; Lukić, Igor ; Radeka, Sanja ; Užila, Zoran ; Lakatos, László ; Vaczy, Kálmán Zoltán
engleski
Adaptation of canopy management practices to global climate change with the aim to produce well balanced, high quality wines
In the past few decades a significant increase in the alcohol content of red wines in many regions of the world was observed: wines with high alcohol content became a frequent problem of oenology which is the indirect effect of global climate change. The increase in the daily average temperature and in the number of sunshine hours results in the advance in vine phenology and faster sugar production in berries, which culminates in higher sugar concentration in grapes. However, the formation of phenolic and aromatic components and changes in acidity profile is differently influenced by the temperature. In order to develop a viticulture technology which is adapted to the current challenges concerning the climate change, the aim of this study was to investigate the possibilities of adjusting vineyard canopy management practices to reduce the accumulation of sugar during the maturation phase without reducing the accumulation of secondary metabolites in grapes. Four factors which affect grape maturation and its final composition were investigated: the height of shoot trimming, crop level obtained by different number of shoots per vine, cluster thinning, and the date of harvest. The research was conducted on Merlot variety in two climatically different regions ; in Istria (Croatia), under the Mediterranean climate and in Eger (Hungary) under continental climate conditions. The investigated factors differently affected the accumulation of sugar and the secondary metabolites in grapes and wines, and the best growing practices to mitigate the effects on climate change were proposed.
Climate change ; Alcohol content ; Anthocyanins ; Wine quality
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Podaci o prilogu
72-73.
2019.
objavljeno
Podaci o matičnoj publikaciji
XX. Szőlészeti és Borászati Konferencia
Vaczy, Kálmán Zoltán ; Helga, Szalontai ; Csilla, Kövér
Eger: Eszterházy Károly Egyetem
Podaci o skupu
XX. Szőlészeti és Borászati Konferencia / XX Vineyards and Wineries Conference
predavanje
13.02.2019-15.02.2019
Eger, Mađarska