VARIATIONS OF CLIMATE PARAMETERS AND THEIR IMPACT ON CABERNET SAUVIGNON AND SAUVIGNON BLANC PHENOLOGY IN CONDITIONS OF CENTRAL SERBIA

Research carried out in vineyard of King Peter I Karadjordjevic-Royal Winery at Oplenac-Topola municipality, on Sauvignon blanc and Cabernet sauvignon. Vineyard planted with Sauvignon blanc is geographically positioned at GPS coordinates N 44° 14' 4" and E 20° 41' 15" and Cabernet sauvignon is geographically positioned at GPS coordinates N 44° 14' 35" and E 20° 41' 22". Climat parameters (series from 1982-2011 year) included following parameters: mean monthly, vegetation (april-october) and annual temperature, active and effective temperature, precipitation distribution (annual and vegetation) and wind direction. Phenological observation included beginning and end of following phenophases: bleeding, budbreakt, shoot growing, flowering, berry development and ripening. The greatest variation Sauvignon blanc manifested in duration of grape ripening which is in 2010. lasted 46 days while in 2011. lasted 34 days. Cabernet sauvignon in 2011. had a lower number of days that have passed from bleeding to full maturity (209 days) compared to 2010., when it passed 217 days

CLIMATE AND HARVEST TIME IMPACT ON AROMATIC COMPOUNDS OF SAUVIGNON BLANC WINE

Research was carried out in vineyard of King Peter I Karadjordjevic-Royal Winery at Oplenac-Topola municipality. Climate parameters included: mean monthly, vegetation and annual temperature and precipitation. Different compounds of aromatic complexes were detected by GC-MS and GC-FID analysis. Wine was made from grapes harvested in full maturity and fifteen days after full maturity. The relationship between measured attributes of aromatic wine complex were visualized using principal component analysis and presented graphically through dispersion diagram. In wine were detected following aromatic compounds: higher alcohols, lactones, organic acids, esters and amides. During  the research it variation of the relative proportion of aromatic compounds was found in Sauvignon blanc wine influenced by different climate conditions, accordingly to temperature and precipitation distribution