Merbein Seedless is an early ripening white multipurpose seedless grape from Australia, bred by CSIRO and released to industry in 1981. It has a short growing season with low yield potential. Vitis vinifera, the selected clone for data analysis was Merbein Seedless MH29-63, AC81.8350. The prime name of this variety is Merbein Seedless.
Bud Burst Days (July 1=0): Medium 81.00
Flowering Days (July 1=0): Late 115.00
Veraison Rating: Early 175.00
Harvest 22 Brix Days (July 1=0): Early 218.00
Seasonality (days): Short 141.00
Leaf Area Index (m2/m2): 3.71
Bunches Per Shoot: 1.50
Yield Potential: Low
Berry Weight (g): 1.88
Total Soluble Solids (° Brix): 17.30
Titratable Acidity (g/L): Very Low 2.44
Tartaric Acid (g/L): 4.50
Malic Acid (g/L): 2.10
Tartrate Malate Acid Ratio: High 2.14
Anthocyanins (mg/g): Unknown .
Phenolics (au): .
Yeast Assimilable Nitrogen (mg/)L: 291
Potassium (mg/)L: 1,590.00