Terroir 2006 banner
IVES 9 IVES Conference Series 9 Monitoring water deficit in vineyards by means of Red and Infrared measurements

Monitoring water deficit in vineyards by means of Red and Infrared measurements

Abstract

Vineyard water availability is one of the most important variables both in plant’s production and wine quality, once it regulates several processes, among which the stomata activity. To avoid water deficit, wine producers introduced artificial irrigation in their vineyard, using a semi-empirical process to calculate water amount. Some previous research presented measurements in the infrared wave bands and PAR (photosynthetic active radiation) as a process to estimate water stress and to calculate water needs. This paper analyses and explores the relationship that could be established between red, infrared and PAR in vegetation indices calculation and leaf area index and the relationship between these indices and water availability or deficit. Data from this process could be used to design irrigation schemes, saving water and controlling vineyards needs.

DOI:

Publication date: December 22, 2021

Issue: Terroir 2006

Type: Article

Authors

Fernando ALVES (1), Fernanda ALMEIDA (1), Moutinho PEREIRA (2) Nuno Magalhães (3) and Jose ARANHA (4)

(1) ADVID – Assoc. Desenv. Viticultura Duriense, Peso da Regua, Portugal
(2) Dept. Eng. Biológica e Ambiental / CETAV, UTAD, Vila Real, Portugal
(3) Dept Fitotecnia, UTAD, Vila Real, Portugal
(4) Dept. Florestal, UTAD, Vila Real, Portugal

Contact the author

Keywords

vineyards, water deficit, red and infrared, vegetation Index (NDVI)

Tags

IVES Conference Series | Terroir 2006

Citation

Related articles…

Historical terraced vineyards – heritage and nature conservation strategies

Historical terrace vineyards are simultaneously impressive documents of the human inclination to design, sites for the production of high quality wines and habitats for a rich variety of flora and fauna

Health benefits of winemaking by-products: in vitro study of the phenolic profile and potential healthy properties

The wine sector plays a significant role in the international agri-food industry, with the winemaking process leading to the generation of considerable amounts of by-products. Among these by-products, grape pomace, is one of the most abundant resources, mainly finding application in the production of distillates, fertilizers, and animal feed.

La hiérarchisation des Coteaux du Languedoc: une application concrète du zonage vitivinicole

L’A.O.C. Coteaux du Languedoc est située dans le Sud de la France, dans la partie Ouest de la bordure méditerranéenne. Elle forme un vaste amphithéâtre largement ouvert sur la mer méditerranée. L’Appellation a été constituée en 1960 par le regroupement de 14 anciennes petites appellations d’origine représentant 55 communes éparpillées dans les départements de l’Aude, de l’Hérault et du Gard. Par la suite, plusieurs extensions successives ont conduit à un ensemble actuellement composé de 168 communes.

Tannin potential and molecular toasting in cooperage: a tool to modulate fruity expression of red wine

AIM: Oak wood play traditionally a huge role in making fine red wines. During wine maturation, barrel yields some of its constituents to the wine and leads to the improvement of its quality, contributing to richness and complexity [1].

Effect of grape harvest time on the metabolomic profile of ribolla gialla monovarietal sparkling wines

The timing of grape harvest is crucial factor to be considered in the winemaking process, as delayed harvest increases the content of varietal aromas, esters, aldehydes