Terroir 1996 banner
IVES 9 IVES Conference Series 9 Interaction among grapevine cultivars (Sangiovese, Cabernet-Sauvignon and Merlot) and site of cultivation in Bolgheri (Tuscany)

Interaction among grapevine cultivars (Sangiovese, Cabernet-Sauvignon and Merlot) and site of cultivation in Bolgheri (Tuscany)

Abstract

Different “landscape unit” have been identified in Bolgheri area (a viticultural appellation in the Tirrenian coast of Tuscany) by the aid of pedological, landscape and agronomic observations in the 1992-1993 period. In all cultivar (Sangiovese, Cabernet Sauvignon and Merlot) x landscape unit combinations, experimental plots were chosen in homogeneous vineyards, single cordon trained (about 3300-4500 vines/hectare). Grape maturation was studied by weekly samples of berries from veraison to vintage in the 1992-1995 period. At harvest yield and must composition traits were measured and, from the most représentative plots, sixty kilograms of grapes were harvested each year and vinified according to a standardised scheme. Wines were evaluated by standard chemical and sensory analyses.

Nutritional status of vines at veraison, surveyed by leaf analysis, assessed the peculiar status of Bolgheri vineyards as concern potassium and iron content in leaves. The influence of site of cultivation (or landscape unit) on crop level, vine vegetative growth, grape composition and wine quality was the result of the combination of mesoclimatic conditions, soil characteristics, water and mineral nutrients availability. The technique of descriptive analyses assessed the peculiarities of the sensory profiles of wines obtained in some landscape units in Bolgheri appellation. In these cases landscape units might be considered as “terroirs”.

Download the PDF

DOI:

Publication date: March 25, 2022

Issue: Terroir 1996

Type : Poster

Authors

M. BOGONI (1), F. LIZIO BRUNO (2), G. MACCARRONE (1), G. NICOLINI (3), A. SCIENZA (1)

(1) Istituto di Coltivazioni Arboree, Università degli Studi di Milano
Via Celoria 2, 20133 Milano, Italy
(2) Geologia e ambiante, Montepulciano, Siena, Italy
(3) Istituto Agrario di San Michele All’Adige
Via Mach 1, 38010, Trento, Italy

Tags

IVES Conference Series | Terroir 1996

Citation

Related articles…

Water recharge before budbreak and/or deficit irrigation during summer: agronomic effects on cv. Tempranillo in the D.O. Ribera del Duero

The availability of water in the soil and the water status of the vineyard are proving to be determining factors for crop management in the current context of climatic variation
Read More

Can grapevine tolerance to bunch rot be directly induced by groundcover management?

Botrytis bunch rot occurrence is the most important limitation for the wine industry in humid environments. The effect of grapevine vegetative growth on bunch rot expression results from direct effects (cluster architecture, nitrogen status among others) and indirect ones (via microclimate). Previous studies of our group showed strong differences in bunch rot incidence between floor management treatments: cover crop (CC) vs weed-free strips under the trellis with herbicide (H). We observed that in some circumstances this reduction in bunch rot incidence occurred without major vine growth differences among treatments. The aim of the present study was to test the general hypothesis that other factors unrelated to grapevine vegetative expression could be more relevant to grapevine susceptibility to bunch rot.

Read More

Preliminary field studies of resistance of Georgian grapevine germplasm to powdery mildew (Erysiphe necator)

Erysiphe necator Schwein is a fungus that causes grapevine powdery mildew. It is one of the most problematic pathogens attacking Vitis vinifera L. The pathogen infects all green parts of the plant and reduces grape yield and quality. The suppression on mildew-susceptible cultivars requires intensive use of fungicides against pathogen, which has negative impact on the environment and human health.

Read More

Managing nitrogen balance in cover-cropped vineyard

In this audio recording of the IVES science meeting 2022, Thibaut Verdenal (Agroscope, Pully, Switzerland) speaks about managing nitrogen balance in cover-cropped vineyard. This presentation is based on an original article accessible for free on OENO One.

Read More

Polyphenol content of cork granulates at different steps of the manufacturing process of microagglomerated stoppers treated with supercritical CO2 used for wine bottling

The wine closure industry is mainly divided into three categories: screw caps, synthetic closures, and cork-based closures. Among this latter, microagglomerated cork stoppers treated with supercritical CO2 are now widely used, especially to avoid cork taint contaminations[1]. They are designed with cork granules obtained from cork offcuts of the punching process during the natural cork stoppers production. A previous study[2] showed that these stoppers released fewer polyphenols in 12 % (v/v) hydroalcoholic solution than natural cork stoppers.

Read More