Spatial and temporal variability of cv. Tempranillo response within the Toro DO (Spain) and projected changes under climate change

This work aimed to analyse the spatial and temporal variability of response Tempranillo variety within Toro Designation Origin (DO) potential changes under climate change scenarios. The research included analysis phenology (bud break, bloom, veraison maturity) grape composition at harvest recorded in plots located seven locations DO, elevations between 667 779 m above sea level (a.s.l.). Changes were projected for 2050 2070 two emission scenarios (Representative Concentration Pathways RCP4.5 RCP8.5), considering predicted variables using an ensemble models. Variations phenological timing up 28 days bud bloom 30 maturity during period analysed titratable acidity varied 4 8 gL-1. was mainly driven by temperature available water different periods stages, although effect soil properties also confirmed. Under warmer conditions, advance all phases (up 6, 12 scenario near double RCP8.5 scenario). In addition, a decrease is (about 1.1 1.4 gL-1 2050, respectively, 2.0 warmest results agreement with observed years contrasting weather conditions.