首页|Effect of growing period on the agronomic characteristics and phenolic content of different watermelon (Citrullus lanatus (Thunb.) Mansfeld) cultivars grown in Tunisia. (Special Issue: Tunisian fruit and vegetables.)
Effect of growing period on the agronomic characteristics and phenolic content of different watermelon (Citrullus lanatus (Thunb.) Mansfeld) cultivars grown in Tunisia. (Special Issue: Tunisian fruit and vegetables.)
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NSTL
Besides some agronomic characteristics, total phenolics and flavonoid contents of different watermelon cultivars (Citrullus lanatus (Thunb.) Mansfeld), as influenced by two growing periods, were investigated. Fruits from plants grown under low plastic tunnel and open-field conditions were collected. Five watermelon cultivars (four commercial cultivars namely 'Crimson Sweet', 'Dumara', 'Giza', 'Aramis', and a new selection 'P503' produced by the National Agricultural Research Institute of Tunisia) were compared. The growing period significantly influenced yield, soluble solids, total phenolics and flavonoid contents of all investigated watermelon cultivars. The total phenolics in the watermelon cultivars ranged from 122.81 to 200.69 mg GAE kg<sup>-1</sup> FW in early and full seasons, respectively. The flavonoid content ranged from 150.60 to 226.44 mg RE/kg FW in early (January-May) and full (March-July) seasons, respectively. The mean total phenolics and flavonoid contents of the five cultivars was 62 and 66% higher, respectively, in full season than in early season. This study indicates that the total phenolics and flavonoid contents of watermelon can vary considerably with changes in environmental conditions.
Tlili, I.、Hdider, C.、Ilahy, R.、R'him, T.、Jebari, H.
NSTL
