Comparison of the quality attributes and antioxidant capacity of plum-apricot interspecific hybrid with some plum and apricots cultivars in harvesting time

In order to study of the fruit quality and antioxidant attributes of interspecific hybrid and its comparison withsome plum and apricot cultivars, an experiment was conductedas a complete randomized design with 4 apricot, 2 plum cultivars and an interspecific plum-apricot hybrid in three replicate. Fruit were harvested at physiological ripening stage and fruit firmness, total acidity, pH, total soluble solids content, ascorbic acid, total phenol and flavonoids and antioxidant capacity were evaluated. Results showed that 'Shablon' plum have the highest fruit flesh firmness. The highest and the lowest total soluble solid content were recorded in 'Nasiri' and 'Dorosht-Malayer' cultivars, respectively. 'Ghorban-Maraghe' and the interspecific hybrid,showed the highest and lowest vitamin C content, respectively. The highest phenol content was recorded in 'Shablon' plum. Generally, the phenol content of plums and the interspecific hybrid were higher than apricots. Among the plums, apricots and interspecific hybrid no significant difference was recorded on the total flavonoid content. The antioxidant capacity of plums was higher than apricots, while hybrid showed intermediate values with respect to the values observed in the parents.