[eng] Grapevine is one of the most important crops worldwide, but its sustainability is threatened by
climate change. The rise in temperature and the decrease in rainfall reduce water availability
in the Mediterranean region and plants experiment higher transpiration rates due to the planet
warming. Hence, this study focuses in water relations and transpiration in plants, especially at
night. Previous researchers found genetic differences in cultivar’s stomatal control (they show
an isohydric or an anisohydric behaviour), then the cross between two cultivars with different
behaviours results in a progeny with a high genetic variability. The aim was to identify
genotypes with reduced night-time transpiration paired with high photosynthetic taxes in
order to maintain the grapevine sustainability in the Mediterranean region in a climate change
scenario