Berry polyphenols and climatic variability in 'Nebbiolo' grapes

T. La Iacona, M. Sanna, F. Spanna, A. Schubert

研究成果: 書貢獻/報告類型會議貢獻


Climate has an important impact on grape and wine qualitative parameters. Experiments in controlled conditions have shown that the major climatic factors affecting polyphenol accumulation are radiative and thermal conditions; in particular, high temperatures inhibit anthocyanin formation and modify the composition of the anthocyanin fraction. The aim of this study was to compare climatic data and berry composition throughout a ten-year period, in order to explore the relationships between phenolic compounds concentration in 'Nebbiolo' grapes and climatic trends. Phenolic compounds concentration was monitored during the 2000-2009 period at four vineyard sites in Piedmont. Meteorological data were collected in the study areas and bioclimatic indexes were calculated. A qualitative and climatic dataset was created and correlation analysis was carried out. The results show that bioclimatic indexes linked to temperature have the highest impact on anthocyanin and flavonoid concentration, while little effects of global light radiation and of rainfall were observed.

主出版物標題XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010)
主出版物子標題Int. Symposium on the Effect of Climate Change on Production and Quality of Grapevines and their Products
發行者International Society for Horticultural Science
出版狀態已發佈 - 三月 31 2012


名字Acta Horticulturae

ASJC Scopus subject areas

  • Horticulture

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