Maturazione dell’uva e gestione della chioma in Vitis vinifera: processi e tecniche da riconsiderare in funzione del cambiamento del clima e delle nuove esigenze di mercato

Translated title of the contribution: [Autom. eng. transl.] Grape maturation and foliage management in Vitis vinifera: processes and techniques to be reconsidered according to climate change and new market needs

Stefano Poni, Alberto Palliotti, O. Silvestroni, F. Leoni

Research output: Contribution to journalArticle

Abstract

[Autom. eng. transl.] Until a few years ago, consumer preference, both in Italy and abroad, was directed towards decidedly structured wines, with a strong territorial character and characterized by high alcohol levels. Today two new factors, known as global warming, or the progressive warming of the planet's surface and "drinking light and / or consciously", that is, the growing demand by both domestic and foreign markets for wines with moderate alcohol content, are forcing to reconsider the current production models. At the basis of this need there are some emerging phenomena such as: 1) advance of all the phenological phases; 2) acceleration of the ripening process of the grapes with considerable increases in the sugar concentration of the musts and therefore in the alcohol content of the wines; 3) accelerated depletion of the acidic structure of musts and rapid increases in pH values with consequent possible microbiological instability of the masses in the pre-fermentation phase; 4) decoupling between the technological maturation of the increasingly accelerated grape and the phenolic maturity, more delayed within a particularly unfortunate framework for black grapes; 5) increase in the phenomena of fast and irreversible dehydration of the berries until serious damage from burns occurs. In this context it is necessary to focus attention on future scenarios and to define interventions both of a programmatic nature, that is to plan the new structure of the winemaking of the millennium just begun, and of fine-tuning of cultivation techniques suitable to overcome or at least buffer, at least in the short term and the medium term, the negative effects deriving from these new problems. The review analyzes the possible interventions both of a structural nature, which therefore concern the variety and clonal choice, the possible production diversification, the breeding system and rootstocks, and of the application type, that is the traditional and innovative cultivation techniques, capable of regularize or even delay a too accelerated and / or unbalanced grape ripening.
Translated title of the contribution[Autom. eng. transl.] Grape maturation and foliage management in Vitis vinifera: processes and techniques to be reconsidered according to climate change and new market needs
Original languageItalian
Pages (from-to)1-15
JournalItalus Hortus
Publication statusPublished - 2012

Keywords

  • Composizione dell’uva
  • gestione della chioma

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