ISHS Acta Horticulturae 465: IV International Peach Symposium
LOCALITY EFFECT ON SOME FRUIT QUALITY PARAMETERS IN PEACHES AND NECTARINES |
| Authors: | M.E. Salvador, L.A. Lizana, L.E. Luchsinger, E. Alonso, E. Loyola |
| Keywords: | Prunus persica, maturity, sugars, color, climate |
| Abstract:
Quality parameters of peaches [Prunus persica (L.) Batsch] cv. Elegant Lady and nectarines cv. Fantasia grown under similar conditions in Mendoza (Argentina) and the Metropolitan Region (Chile) were studied. The Mendoza area (warmer and sunnier) presented fruit with larger polar diameter, tip, larger red cover color, and higher pulp color grade, soluble solids/titratable acidity ratio and sorbitol percentage. Nevertheless, the Metropolitan Region (greater thermal amplitude) presented fruit with larger sutural diameter, greater sutural deformation, and higher titratable acidity and sucrose percentage. There was no difference in equatorial diameter. The variation observed in fruit pH, firmness, soluble solids and sugar content could be explained by the fact that ground color, used as harvest index, was affected by locality and climatic conditions, and therefore the fruits were at different maturity stages at harvest. | |
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