Terroir 1996 banner
IVES 9 IVES Conference Series 9 Sviluppo vegetativo del Nebbiolo nell’area di produzione del Barolo DOCG: influenza sulla qualita’ della produzione

Sviluppo vegetativo del Nebbiolo nell’area di produzione del Barolo DOCG: influenza sulla qualita’ della produzione

Abstract

Environment features and management operations on shoot and leaves modify the canopy during the vegetative season, changing the grapevine microclimate and the ratio between photo synthetic sources (the canopy) and productive sinks (the grapes). The aim of the present study was to evaluate on several vineyards the evolution in the season of the canopy development, in order to relate the vegetative behavior of the vine with the quality of grapes at harvest. For two consecutive years canopy development was assessed on 30 Nebbiolo vineyards in the Barolo area, using the point quadrat method. Size and structure of the canopy were assessed in June and September. Yield and qualitative characteristics of the must were determined at harvest. Total leaf area measured at the end of the vegetative season was directly correlated with yield, but it was not correlated with sugars and phenolic accumulation in the grape. However, both sugar and phenolic content in the must were proportional to the increase in canopy area observed between June and September, which is affected by plant vigor and vineyard management techniques (e.g. topping). The results suggest that the quality of Nebbiolo grapes in the Barolo area is affected by environment-induced vigor on one side, and by canopy management on the other side.

DOI:

Publication date: March 2, 2022

Issue: Terroir 1998

Type: Article

Authors

CLAUDIO LOVISOLO (1), ANDREA SCHUBERT (2), ROCCO Dl STEFANO (3)

(1) Dipartimento di Colture arboree dell’Università di Torino
(2) Centro Miglioramento genetico e Biologia della Vite, CNR – Via Leonardo da Vinci, 44 – 10095 Grugliasco
(3) lstituto Sperimentale per l’Enologia, Sez. di Chimica enologica – Via P. Micca, 35 – 14100 Asti

Tags

IVES Conference Series | Terroir 1998

Citation

Related articles…

Influence of the agronomic management on the aroma of Riesling wines

Nitrogen fertilisation of grapevines is known to influence not only plant development and production yield, but also yeast assimilable nitrogen (YAN). This parameter is related to the growth of yeast

Response of grapevine cv. “Tinta Roriz” (vitis vinifera L.) to moderate irrigation in the Douro region, Portugal

The behaviour of cv. “Tinta Roriz” (Vitis vinifera L.), was studied when moderate drip irrigation was applied from veraison to harvest. Field studies were conducted during three growing seasons

Organoleptic and analytical impacts of the color of glass of the bottles on Chasselas wine

This study was performed on Chasselas wine to assess the impact of exposure to wine light according to several glass color of bottles. The aim was to highlight any differences whether from an organoleptic or analytical point of view depending on the color. For this, four different shades were compared, dead leaf, green, cinnamon and transparent. A control, not treated with light, was also included in the study…

Influence on grape aroma of nitrogen compounds and elicitors foliar applications in vineyards

The grape volatile compounds determine the wine quality and typicity [1]. Thus, looking for agronomic tools to improve its composition it is of great interest in the sector [2]

Tackling the 3D root system architecture of grapevines: a new phenotyping pipeline based on photogrammetry

Plant roots fulfil important functions as they are responsible for the acquisition of water and nutrients, for anchorage and stability, for interaction with symbionts and, in some cases, for the storage of carbohydrates. These functions are associated with the Root System Architecture (RSA, i.e. the form and the spatial arrangement of the roots in the soil). The RSA results from several biological processes (elongation, ramification, mortality…) genetically determined but with high structural plasticity.