Roussanne is an early ripening white wine grape from France. It has a medium growing season with medium yield potential. Vitis vinifera, the selected clone for data analysis was Roussanne 1974/CX/Vassal, IC74.8289. Grown for commercial wine production in Australia. The prime name of this variety is Roussanne.
Bud Burst Days (July 1=0): Medium 79.00
Flowering Days (July 1=0): Very Late 123.00
Veraison Rating: Late 195.00
Harvest 22 Brix Days (July 1=0): Early 236.00
Seasonality (days): Medium 164.00
Leaf Area Index (m2/m2): 2.38
Bunches Per Shoot: 1.50
Yield Potential: Medium
Berry Weight (g): 1.38
Total Soluble Solids (° Brix): 22.10
Titratable Acidity (g/L): Medium 4.85
Tartaric Acid (g/L): 5.50
Malic Acid (g/L): 4.30
Tartrate Malate Acid Ratio: Low 1.28
Anthocyanins (mg/g): Unknown .
Phenolics (au): .
Yeast Assimilable Nitrogen (mg/)L: 244
Potassium (mg/)L: 1,830.00