AJEV New in 2011 - Lower Tier 1 Library Rates
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Am. J. Enol. Vitic. 61:1:23-30 (2010)
Copyright © 2010 by the American Society for Enology and Viticulture.
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Supplemental Data
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Chorti, E.
Right arrow Articles by Novello, V.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Chorti, E.
Right arrow Articles by Novello, V.
Agricola
Right arrow Articles by Chorti, E.
Right arrow Articles by Novello, V.

Effect of Different Cluster Sunlight Exposure Levels on Ripening and Anthocyanin Accumulation in Nebbiolo Grapes

Evaghelia Chorti1, Silvia Guidoni1, Alessandra Ferrandino1 and Vittorino Novello1,*

1 Dipartimento Colture Arboree, Università di Torino, Via Leonardo da Vinci 44, I-10095 Grugliasco (TO), Italy.

Acknowledgments: This study has been financially supported by MIUR Project of National interest (PRIN). The authors thank the Azienda Agricola Sandrone Luciano in Barolo, where the trial took place, and Luis Sanchez for the critical review of the study and for his support.

Supplemental data is freely available with the online version of this article at www.ajevonline.org.

* Corresponding author (email: vittorino.novello{at}unito.it; fax: +39-011-2368758)

The influence of solar radiation and temperature on the accumulation of berry skin anthocyanins was evaluated in Vitis vinifera L. cv. Nebbiolo during ripening. In 2006 and 2007, five fruit-zone light exposure regimes were established using plastic netting or leaf removal. Shading was applied in three periods: from fruit set to veraison, from fruit set to harvest, and from veraison to harvest. Fruit-zone shading had no impact on yield per vine and cluster weight, but early fruit-zone shading caused a slight delay in berry development, although it did not lead to lower berry size at harvest. Fruit-zone shading reduced total soluble solids and anthocyanin accumulation. Generally, fruit shading decreased the 3'-hydroxylated anthocyanin concentration and increased the 3',5'-hydroxylated anthocyanin concentration. Fruit-zone leaf removal caused a delay of berry development, but did not affect berry size, cluster weight, or yield at harvest. Excessive sunlight exposure caused sunburn damage and did not increase total soluble solids or anthocyanin accumulation.

Key words: cluster shading, leaf removal, berry temperature, PAR






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2010 by the American Society for Enology and Viticulture.