Influence of bunch morphology on quality of wines produced from clones of grape variety Prokupac

Abstract

Wine quality depends mainly on the characteristics of the grape it is made of, and one of the attributes affecting wine composition is cluster and berry morphology. The aim of this study was to represent variability of morphological characteristics between clones of the autochthonous grape variety Prokupac and performed chemical evaluation of wines obtained from them. Total phenolic content was generally low and it ranged from 33.0 to 114.5 mg GAE/100 mL. Six main anthocyanin compounds with malvidin as the main anthocyanidin were detected. Malvidin-3-O-glucoside was the most abundant anthocyanin ranging from 59.8 to 101.7 μg/mL. Clones 43/5 and 43/4 are marked as those from which wines with the highest quality are obtained. According to our results clonal selection makes a significant difference in Prokupac wine quality. On the other hand, there is a poor response of wine quality parameters to variation in morphological attributes of clusters and berries (bunch weight, proportion of stem, berry and seed weight, skin, pulp and seed weight per berry). [Projekat Ministarstva nauke Republike Srbije, br. 46013, br. 31063 i br. 43007]

Keywords

• anthocyanins
• clonal selection
• malvidin-3-O-glucoside