Foliar application of kaolin and zeolites to adapt the adverse effects of climate change in Vitis vinifera L. cv. Sangiovese

One of the first effects climate change in wine-growing areas is advancement phenological stages, especially concerning early berry ripening. In this condition, decoupling between technological and phenolic maturity often occurs. Anthocyanins red grapes are among compounds that mostly contribute to maturity. However, their accumulation grape berries known be impaired by high temperatures. Therefore, study aims evaluate efficacy mineral-based treatments with kaolin zeolite, based on chabasite, enhancement anthocyanins accumulation, also at molecular level, analysing gene expressions along flavonoid biosynthesis pathway during ripening Sangiovese berries. addition, temperature leaves, vine water status, leaf photosynthetic efficiency, total soluble solids, titratable acidity pH were measured throughout growing season. Hence, current study, it has been demonstrated zeolite not only lowering daily maximum but improvement correlated expression those genes involved pathway. Moreover, had no significant effect productive parameters.