Abstract
ABSTRACT This study evaluated five grape cultivars, viz. Cardinal, Prima, Victoria, Regal Seedless, and Sultanine, grown at four sites in the semi-arid Saïs region of Morocco. The research aimed to assess how the region’s climatic conditions influence grape growth and quality, to identify cultivars suitable for local golden raisin production. Pomological and physico-chemical characteristics were measured, including fruit size, seed and skin weight, juice yield, and soluble solids. The Sultanine cultivar proved advantageous, with the longest bunch length (27.96 cm), heaviest bunch weight (651.39 g), highest total soluble solids (25.50° Brix), and highest sugars (18.11%). Victoria, a white grape cultivar, had the largest berry diameter (2.15 cm) and highest ascorbic acid content (22.23 mg/100 g). The study highlights Sultanine’s exceptional quality and suitability for the Saïs region, making it an ideal candidate for high-quality local sultanas. There is potential to boost production and reduce Morocco’s dependence on imported golden raisins.
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