Abstract
Several physical and chemical characteristics of 10 grape varieties, 5 each of white and black, grown in the warm humid southern part of Iraq, were investigated.
Results showed that size of berries, percent of berries and stem in cluster, total soluble solids (TSS) and total acidity (TA) varied among varieties.
Average weight per cluster ranged from 160 to 706 g and average weight of 100 berries ranged from 2.0 to 7.8 g. Juice yield increased as percent solids in berries decreased. As ripening progressed the TSS, TSS/TA ratios and pH increased while TA decreased. The most reliable index for ripening was the TSS/TA ratios.
- Received January 1981.
- Revision received June 1981.
- Accepted July 1981.
- Published online January 1981
- Copyright 1981 by the American Society for Enology and Viticulture
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Vol 32 Issue 4
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