Impact of the vine water status on the berry and seed phenolic composition of 'Merlot' (<i>Vitis vinifera</i> L.) cultivated in a warm climate: Consequence for the style of wine

Authors

  • J. L. Chacón
  • E. García
  • J. Martínez
  • R. Romero
  • S. Gómez

DOI:

https://doi.org/10.5073/vitis.2009.48.7-9

Keywords:

water constraint, phenolic composition, colour, Vitis vinifera L. cv. Merlot, wine

Abstract

During 2005 and 2006 four irrigation treatments were assayed in a vineyard growing 'Merlot' grapes located in a warm climate region. The treatments were kept for two years and the wine was produced the second year so that the response of the wines to water constraint was consistent. The phenolic parameters of the wines were analysed. The phenolic composition of the seeds was studied for both years and more significant differences were observed in the second. The results showed that when the deficiency increased, so did the concentration of total polyphenols, flavan-3-ols and tannins in the seeds. Pre-dawn leaf water constraint integrals between 20 and 24 Mpa as opposed to levels of 9 to 14 caused statistically significant increases in total polyphenols, flavan-3-ols and the colour index of the wine. These differences were manifested in sensory terms by significant intensification of the colour and body of the wines.

 

Downloads

Published

2015-04-08

Issue

Vol. 48 No. 1 (2009): Vitis

Section

Article

License

The content of VITIS is published under a Creative Commons Attribution 4.0 license. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes to the original are clearly labeled. We do not prohibit or charge a fee for reuse of published content. The use of general descriptive names, trade names, trademarks, and so forth in any publication herein, even if not specifically indicated, does not imply that these names are not protected by the relevant laws and regulations. The submitting author agrees to these terms on behalf of all co-authors when submitting a manuscript. Please be aware that this license cannot be revoked. All authors retain the copyright on their work and are able to enter into separate, additional contractual arrangements.