Negru Virtos

Negru Virtos 1 Field

Negru Virtos is a late ripening black wine grape from Romania. It has a long growing season with high yield potential. Vitis vinifera, the selected clone for data analysis was Negru Virtos FVW1V21, IC76.8278. The prime name of this variety is Negru Virtos.

Variety: Negru Virtos
Colour: Black
Seeded: Yes
Bud Burst Days (July 1=0): Medium 76.00
Flowering Days (July 1=0): Very Late 122.00
Veraison Rating: Late 191.00
Harvest 22 Brix Days (July 1=0): Late 273.00
Seasonality (days): Long 196.00
Leaf Area Index (m2/m2): 3.86
Bunches Per Shoot: 1.50
Yield Potential: High
Berry Weight (g): 2.44
Total Soluble Solids (° Brix): 19.00
pH: 3.93
Titratable Acidity (g/L): Medium 4.21
Tartaric Acid (g/L): 5.10
Malic Acid (g/L): 4.40
Tartrate Malate Acid Ratio: Low 1.16
Anthocyanins (mg/g): Low 0.52
Phenolics (au): 1.12
Yeast Assimilable Nitrogen (mg/)L: 337
Potassium (mg/)L: 1,440.00