Detalle Publicación


Metabolic changes in grapevine berry skins of different clones of Tempranillo subjected to regulated deficit irrigation under elevated temperatures

Libro: Libro de Resúmenes del XIII Simposio de Relaciones Hídricas en Plantas
Lugar de Edición: Pamplona
Editorial: Universidad de Navarra
Fecha de publicación: 2016
Página Inicial - Final: 75 - 78
ISBN: 978-84-8081-525-3
Resumen: This study investigates the impact of pre- and post-veraison deficit irrigation under elevated temperatures in berry skin metabolites from two Tempranillo clones. The study was carried out on fruit-bearing cuttings from two clones of Vitis vinifera (L.) cv. Tempranillo (CL-1089 and CL-843) subjected to two temperature regimes (24/14°C and 28/18°C (day/night)) combined with three irrigation regimes during berry ripening. Irrigation treatments were: (i) water deficit from fruit set to onset of veraison (early deficit, ED); (ii) water deficit from onset of veraison to maturity (late deficit, LD); and (iii) fully irrigation (FI). Results showed that at 24/14°C, LD treatment performed better than ED treatment but such differences were attenuated at 28/18°C. Berry primary metabolism was mainly altered by temperature whereas secondary metabolism was more modified by water deficit irrigation, being CL-843 more sensitive to high temperature than CL-1089. Thereby, our data suggest that the adaptation of grapevines for climate change in south Mediterranean Europe might be plausible with the optimization of timing of water deficit and the adequate clonal selection.