Water stress is a physiological state that grapevines experience when there is insufficient water supply during the critical growing cycle. Some of the physiological responses of grapevines include effected cell development, closing of leaf stomata, reduced photosynthesis and, in the worst case, cell dehydration and death of the vine.
The physiological reaction of a vine to water stress will affect the growth and development of the shoots, leaves and fruit depending on the timing and level of water stress during the growing season.
Water stress may also have less obvious or indirect effects on fruit yield and final quality. For example, reducing berry size increases the skin to juice ratio, which may increase the concentration of anthocyanins and phenolics of red grapes.
We work carefully to avoid our vines from suffering from this with a very precise subsoil irrigation system that can manage water supply in the most optimal way to guarantee perfect berries.