Effects of shading nets as a form of adaptation to climate change on grapes production: a review

Viticulture worldwide is threatened by the environmental modification caused climate change. Higher temperature and atmospheric CO2 concentration determine an acceleration of ripening process, which can be detrimental to wine quality. Hence, adaptation mitigation strategies are necessary reduce heat water stress improve qualitative production levels. Amongst all various techniques available, shading nets represent interesting alternative for their effects on canopy microclimate grape production. However, these vary strongly depending intensity treatment, timing its application, conditions, differences in cultivar response. The reduction photosynthetic activity use efficiency slow down preserving must acidity. Phenolic compounds, benefit from light exposure synthesis, negatively affected shading, while aromatic composition improved it. Vine reserve accumulation reduced lower photoassimilates Photoselective nets, thanks colour, not only but also change quality spectrum reaching canopy, thus, determining specific responses plants.