Effect of type of rootstock and fruit tissue on some chemical properties ‎on Page mandarin and Thampson novel orange

Based on the valuable antioxidant activity of citrus fruits, in present study the effect of ‎rootstock and the type of tissue on some fruit quality parameters including phenol, ‎flavonoid, antioxidant and the content of hesperidin and naringin of orange and mandarin ‎was studied. The experiment was conducted as a factorial design based on complete ‎randomized blocks with four replications. Results showed that, the amount of titrable ‎acid of thampson novel fruit was higher than that of page mandarin. Both fruits produced ‎a higher titrable acid when citromelo was used as rootstock. The content of vitamin C of ‎fruits of sour orange was higher than that of citromelo. Antioxidant activity and the ‎content of total phenol, total flavonoid, and hesperidin of thampson novel fruits were ‎significantly high. Contrary to the hesperidin, between thampson novel orange and page ‎mandarin the content of naringin of page mandarin was at the highest level. Fruits on ‎citromelo showed a higher antioxidant activity, flavonoid and hesperidin content. No ‎difference on the amount of total phenol and naringin was observed between two ‎different rootstocks. The accumulation of measured antioxidant compounds of peel is ‎noticeable. Finely based on the obtained results it can be concluded that although the ‎concentration of pharmaceutical and nutritional compounds strongly related to genetic, it ‎seems that a higher quality and quantity of such compound could be achieved using a ‎suitable rootstock.‎