Terroir 2006 banner
IVES 9 IVES Conference Series 9 High resolution remote sensing for mapping intra-block vine vigour heterogeneity

High resolution remote sensing for mapping intra-block vine vigour heterogeneity

Abstract

In vineyard management, the block is considered today as the technical work unit. However, considerable variability can exist inside a block with regard to physiological parameters, such as vigour, particularly because of soil heterogeneity. To represent this variability spatially, many measurements have to be taken, which is costly in both time and money. High resolution remote sensing appears to be an efficient tool for mapping intra-block heterogeneity. A vegetation index, the Normalized Difference Vegetative Index (NDVI), calculated with red and near infrared leaf reflectance can be used as a vine vigour indicator. Because of the cultivation of vines in rows, a specific image treatment is needed. Only high resolution remote sensing (pixels less than 20 cm per side) allows the discrimination between row pixels and inter-row ones. The significant correlation between NDVI and pruning weight and the possibility to map the vigour with the NDVI by means of high resolution remote sensing, show the ability of NDVI to assess intra-block variations of vine vigour.

DOI:

Publication date: December 22, 2021

Issue: Terroir 2006

Type: Article

Authors

Elisa MARGUERIT (1), Anne-Marie COSTA FERREIRA (1), Cloé AZAÏS, Jean-Philippe ROBY (1), Jean-Pascal GOUTOULY (2), Christian GERMAIN (1), Saeid HOMAYOUNI (1) and Cornelis Van LEEUWEN (1)

(1) ENITA de Bordeaux, 1 cours du Général de Gaulle, CS 40201, 33175 Gradignan cedex, France
(2) INRA de Bordeaux, Domaine de la Grande Ferrade, 71, avenue Édouard Bourlaux B.P. 81, 33 883 Villenave d’Ornon cedex, France

Contact the author

Keywords

vine, Vitis vinifera L., remote sensing, high resolution, pruning weight, NDVI

Tags

IVES Conference Series | Terroir 2006

Citation

Related articles…

CHARACTERIZATION AND ANTIBACTERIAL ACTIVITY OF A POLYPHENOLIC EXTRACT OBTAINED BY GREEN SUPERCRITICAL CO₂ EXTRACTION FROM RED GRAPE POMACE

Upgrading wine industry solid wastes is considered as one of the main strategies to support the circular economy. Red grape pomaces constitute a rich source of polyphenols, which have been shown to possess antioxidant properties and to provide benefits for human and animal health. The objective of this work was to obtain and characterise polyphenolic extracts from red grape pomaces via green supercritical CO₂ extraction using ethanol as a co-solvent, and to evaluate their antibacterial activity against susceptible and multidrug-resistant Escherichia coli strains of animal intestinal origin.

Evaluation of a biological foliar fertilization system, in the production, agronomic and quality characteristics of three wine grape varieties

Evaluation of the fertility management practices in wine grape varieties production. Wine grape represents one of the most important productions in Greece with major impact to the socioeconomic characteristics of the country. The objective of this study is to evaluate, with the support of Geospatial Technologies, the potential effects of an innovative foliar fertilizer system, which is composed of three parts: a mineral fertilizer in a micronized formulation, a biostimulant as an enhancing factor of the process and, an amino acid compound (SANOVITA concept). The study was established at a collaborative, private vineyard, in the area of Trilofos-Thessaloniki, at the region of Northern Greece.

Genetic traceability of ‘Nebbiolo’ musts and wines by single nucleotide polymorphism (SNP) genotyping assays

AIM: ‘Nebbiolo’ (Vitis vinifera L.) is one of the most ancient and prestigious Italian grape cultivars. It is renowned for its use in producing monovarietal high-quality red wines, such Barolo and Barbaresco. Wine quality and value can be heavily modified if cultivars other than those allowed are employed.

Natural variability and vine-growers behaviour

Le vigneron est confronté à une variabilité naturelle omniprésente, liée au millésime et aux facteurs pédoclimatiques. Depuis 10 ans, en Champagne, la relation qu’entretient le vigneron avec l’espace a évolué. Les exemples d’entreprises collectives à vocation territoriale se sont multipliés : gestion de l’hydraulique viticole, maillages de groupements de conseil viticole (Magister), sites en confusion sexuelle, réseau maturation, analyses de sols par secteur, …

Cross analytical and sensory differentiation of monovarietal white wines from four autochthonous grape varieties: focus on macromolecules

White wines contain macromolecules such as proteins, phenolic compounds and polysaccharides. On a sensory
level, these compounds contribute to the ‘mouthfeel’ that differentiates the white wines worldwide [1].