Evaluation of teinturier type grape (Vitis vinifera) germplasms for wine purpose

The teinturier type grapes (Vitis vinifera L.) produce deep coloured wines having bold flavours and distinctive characteristics. Ten teinturier type grapes were evaluated for bunch and berry parameters. Some quality parameters of prepared wines were also assessed. A wide range of variability was observed in days required for full bloom, days from fruit setting to harvesting and growing degree days. There were significant variations in bunch and berry parameters in all genotypes during both the years. Pusa Navrang produced smallest bunches, while Aliquant Bauschet had the longest. The hybrid, Pusa Navrang × Chardonnay, produced boldest berries and maximum bunch weight. Significant differences were also observed in biochemical parameters like total soluble solids (TSS), acidity, phenolic acids, tannins, and anthocyanins. Wines prepared from these grape types also showed significant differences. Wines made from ARI-239 had the highest ethanol levels. The varietal differences influenced the composition and antioxidant potential of wines. Vintage effects were also observed. Based on bunch and berry parameters and wine quality, Manjari Medika, Pusa Navrang, Pusa Navrang × Red Globe, ARI (H-27) and Rubired were found promising.