Helena is an early ripening white wine grape from United States of America. It has a medium growing season with medium yield potential. Vitis vinifera, the selected clone for data analysis was Helena FVF9V8, IV71.2312. The prime name of this variety is Helena.
Bud Burst Days (July 1=0): Medium 77.00
Flowering Days (July 1=0): Very Late 123.00
Veraison Rating: Medium 187.00
Harvest 22 Brix Days (July 1=0): Early 230.00
Seasonality (days): Medium 160.00
Leaf Area Index (m2/m2): 3.35
Bunches Per Shoot: 1.40
Yield Potential: Medium
Berry Weight (g): 1.30
Total Soluble Solids (° Brix): 20.60
Titratable Acidity (g/L): High 5.12
Tartaric Acid (g/L): 4.70
Malic Acid (g/L): 3.98
Tartrate Malate Acid Ratio: Low 1.18
Anthocyanins (mg/g): Unknown .
Phenolics (au): .
Yeast Assimilable Nitrogen (mg/)L: 242
Potassium (mg/)L: 1,190.00