Terroir 2010 banner
IVES 9 IVES Conference Series 9 International Terroir Conferences 9 Terroir 2010 9 Geology and Soil: effects on wine quality (T2010) 9 Rapporti tra diverse tipologie di terreno e risposte produttive e qualitative delle uve Merlot e Carmenère nell’area DOC Piave

Rapporti tra diverse tipologie di terreno e risposte produttive e qualitative delle uve Merlot e Carmenère nell’area DOC Piave

Abstract

[English version below]

Da anni la ricerca viticola sta orientando le sue attenzioni verso lo studio della vocazionalità degli ecosistemi viticoli, perché fulcro della produttività della vite e qualità dei suoi frutti. Dal 2007 anche l’area a DOC del Piave, situata nella parte orientale della regione Veneto, è oggetto di uno specifico studio.
Il lavoro ha messo a confronto due diverse tipologie di suolo, uno a tessitura fine (limoso –argilloso) più a sud dell’area DOC Piave e l’altro a tessitura più grossolana (ghiaioso –ciottoloso) nella zona più a nord. Entrambe le varietà coltivate erano allevate a Sylvoz, innestate su Kober 5BB. Lo studio ha verificato nella bacca il contenuto di sostanze coloranti, il contenuto in solidi solubili, dell’acidità totale, del pH oltre ai parametri produttivi e vegetativi quali: n° grappoli/vite, produzione uva/vite, peso medio del grappolo e il legno di potatura.
I risultati ottenuti nel triennio, hanno permesso di evidenziare come le caratteristiche del terreno abbiano influenzato nettamente sia le rese produttive sia la qualità delle uve. Qualità che per la varietà Merlot è stata superiore nei suoli limoso – argillosi, al contrario il Carmenère ha trovato il miglior adattamento nei suoli ghiaioso – ciottolosi. L’analisi sensoriale ha confermato i dati analitici del Merlot ma non pienamente quelli del Carmenère.

Giving the important effects of the environmental factors on the vine productivity and grape quality, a branch of viticulture research has been focusing on the relation between vines and their ecosystems for years.
The DOC Piave area, located in the eastern part of the Veneto region, was the object of a specific zoning study from 2007 to 2009.
The study compared two different types of soils, one located in the Southern part of the DOC Area has clay-loam texture, the other located further Nord has a gravelly texture. For both varieties the trellising system was Sylvoz and the vines were grafted on Kober 5bb. Sugar accumulation, pigments amount, total acidity and pH were determined along with vegetative and productive parameters.
The results confirmed that there exist a close relationship between soil and grape quality, but each variety responds in a different way: Merlot had the most interesting quality when grown clay-loam soils, while a different behaviour was found in Carmenere. The wine sensory score confirmed the grape analysis for Merlot, but only partially for Carmenere.

DOI:

Publication date: December 3, 2021

Issue: Terroir 2010

Type: Article

Authors

D. Tomasi (1), P. Marcuzzo (1), A. Garlato (2), F. Gaiotti (1), L. Lovat (1)

(1) CRA – VIT : Centro di Ricerca per la Viticoltura, Viale XXVII Aprile 26 31015 Conegliano (TV), Italy
(2) ARPAV – Agenzia Regionale per la Prevenzione e Protezione Ambientale del Veneto, Servizio Osservatorio Suolo, Via Baciocchi 9, 31033 Castelfranco Veneto (TV), Italy

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

Volatile and phenolic profiles of wines closed with different stoppers and stored for 30 months

The aim of this study was to evaluate the volatile and phenolic profiles of three red and one rosé wines stored in bottles for 30 months. Four wines were provided by a winery located in South Tyrol

Water and physiological response to early leaf removal of cv. Verdejo in rainfed conditions, at different times of the day, in the D.O. Rueda (Spain)

Aim: Early leaf removal, generally applied before flowering, is mostly conceived as a technique to control grape yield and improve the health of grapes and focused on the final objective of increasing wine quality.

EFFECT OF DIFFERENT VITICULTURAL AND ENOLOGICAL PRACTICES ON THE PHENOLIC COMPOSITION OF RED WINES

Global climate change is exerting a notable influence on viticulture sector and grape composition. The increase in temperature and the changes in rainfall pattern are causing a gap between phenolic and technological grape maturities [1]. As a result, the composition of grapes at harvest time and, consequently, that of wines are being affected, especially with regards to phenolic composition. Hence, wine quality is decreasing due to changes in the organoleptic properties, such as color and astringency, making necessary to implement new adaptive technologies in wineries to modulate these properties in order to improve wine quality.

Innovative strategies for reducing astringency in Mandilaria wines 

Mandilaria, a red grape variety indigenous to the Aegean islands, is well known for its robust tannins and pronounced astringency, which can challenge the palatability and marketability of its wines. The aim of this study was the reduction of astringency in wines made exclusively from mandilaria grapes through dehydrations practices and targeted winery applications.

A NEW STRATEGY AND METHODOLOGY FOR THE CHARACTERIZATION OF POLYPHENOLS IN FINING PRECIPITATE

Polyphenols are secondary metabolite widely distributed in plant kingdom such as in fruits, in grapes and in wine. During the winemaking process, polyphenols are extract from the skin and seed of the berries. Fining is an important winemaking step just before bottling which has an impact on wine stabilization and clarification. Most the time, fining agent are animal or vegetal protein while some of them can be synthetic polymer like PVPP or natural origin like bentonite.