Author(s): RG Somkuwar, Ajay Kumar Sharma, Nilima Gobade and Praveen Kumar Ausari

Abstract: The experiment was carried out for three at the farm of ICAR- National Research Centre for Grapes, Pune. The experiment was conducted in randomized block design with three replications. The vines were trained on ‘mini-Y’ trellis system and spacing of 2.4×3 m². Four-year-old vines of these varieties were selected for the study. The growth parameters like pruning weight and shoot diameter was recorded in variety Cabernet Sauvignon and Syrah while Niellucio observed highest leaf area and shoot length. The early days to bud sprout and days to harvest was recorded in variety Cabernet Franc and Grenache. The number of bunches/vine and yield/vine were varied significantly among the varieties with number of bunches/vine and yield/vine highest in variety Syrah. But bunch weight and number of berries/bunch was highest in variety Tempranillo. However, different varieties of grape exhibited significant variation with respect to average hundred berries weight. The hundred berries weight was highest in Cinsaut. The varieties Grenache gave the highest total soluble solids and lowest acidity in Tempranillo while maximum juice recovery was observed in variety Cinsaut. Volatile acid and total acid content highest was recorded from variety Grenache and Cabernet Sauvignon as compared to other cultivars. In wine quality parameters, variety Tempranillo recorded highest wine pH while Petit Verdot and Cabernet Franc showed highest malic acid and volatile acid.

DOI: 10.33545/26174693.2024.v8.i5l.1227