Physico-chemical properties of grapes of Chardonnay and Cabernet Sauvignon varieties grown under different agroecological conditions
Agroecological conditions, the biological characteristics of grapevine varieties, and the application of viticultural practices significantly influence the physico-chemical properties of grapes. This study assessed the impact of agroecological conditions at two cultivation sites, Sarajevo and Trebinje, on the physico-chemical properties of Chardonnay and Cabernet Sauvignon (Vitis vinifera L.) grape varieties. The results showed that location had a statistically significant effect on several physical parameters of grape bunches and berries. Significant differences were observed in bunch and berry mass (in ‚Chardonnay‘), bunch length (in both varieties), bunch width (in ‚Cabernet Sauvignon‘), berry length (in ‚Chardonnay‘), berry width (both varieties), as well as in the mass of 100 berries, pulp and skin mass of 100 berries, and the number of seeds per 100 berries. Furthermore, the cultivation site significantly influenced the sugar and total acid content in both varieties, as well as the phenolic content in ‚Chardonnay‘ berries, and the flavonoid content and total antioxidant activity in ‚Cabernet Sauvignon‘.