Influence of crop load on the yield and grape quality of Merlot and Vranac (Vitis vinifera L.) varieties in Trebinje vineyard

The aim of this study was to the impact crop load on yield and grape quality ‘Merlot’ ‘Vranac’ (Vitis vinifera L.) in Trebinje vineyard. levels studied trial were 9 buds (V1) 12 (V2) per vine at each variety trained Lenz-Moser bilateral cordon system. determined by measurements characterized contents total soluble solids, titratable acidity, phenolics, flavonoids antioxidant capacity. measured parameters not influenced significantly levels. V2, compared V1, showed potential for increasing only Merlot under experimental conditions. results also a positive correlation between phenolics/flavonoids capacity berries both varieties, regardless loads applied.