Morphological and chemical diversity among South Tunisian mulberry tree (Morus spp) cultivars

The dietetic and therapeutic importance of mulberry tree carried out us to study the fruit content variability in sugar and vitamins in the Tunisian South The blackberries studied cultivars manifest a richness in reducing sugars The average contents of glucose and fructose are respectively 4 96 g/100 g and 575 g/100 g This study also shows that the blackberry is rich in vitamin 136 and vitamin C and presents fewer contents in vitamins B1 and B2. The average contents were 12 mg/100 g for vitamin 86, 0 56 mg/100 g for 131 and 067 mg/100 g for 62 The contents of vitamin C are higher than 16 mg/100 g for 15% of studied cultivars, and vary from traces to 74 mg/100 g for the 85% of cultivars Statistical analysis reveals four groups of cultivars with a significant correlation between fruits contents in sugars and vitamins and geographic distances between the collected cultivars