Application of nitrogen forms such as nitrate, urea, and amino acids effects on leaf and berry physiology and wine quality

Over the past 30 years, systematic ampelographic and genetic research in Croatia has led to the identification and collection of approximately 130 grapevine cultivars (Vitis vinifera L.) considered to be indigenous.

The study aims to propose collective strategic actions for family wineries, promoting their competitiveness and the valorization of territorial resources.

Bioprotection is emerging as an innovative technique for preserving grape health contrary to traditional approaches based on the addition of external chemical agents (1).

The IPCC has created several climate scenarios evaluating the impacts and consequences of climate change. All agricultural sectors will be concerned, in particular grape and wine production. Climate, especially temperature, has a key role in grapevine development.

Vegetative propagation of grapevines can generate spontaneous somatic variations, providing a valuable source for cultivar improvement. In this context, natural variation in the composition of phenolic compounds in grapevine berries and seeds stands as a pivotal factor in crafting wines with diverse oenological profiles from the same cultivar. To deepen on the understanding of the physiological and genetic mechanisms driving somatic variation in grape phenolics, here we characterized a somatic variant from Tempranillo Tinto, the clone VN21, that exhibits an intense reduced berry skin cuticle and increased extractability of phenolic compounds during wine fermentation.