A5012851417- Horticultural and Viticultural Research
- Fermentation and Sensory Analysis
- Wine Industry and Tourism
- Plant Physiology and Cultivation Studies
- Plant Water Relations and Carbon Dynamics
- Irrigation Practices and Water Management
- Plant Pathogens and Fungal Diseases
- Plant biochemistry and biosynthesis
- Plant and soil sciences
- Historical and socio-economic studies of Spain and related regions
- Forest Insect Ecology and Management
- Mediterranean and Iberian flora and fauna
- Biochemical and biochemical processes
- Remote Sensing in Agriculture
- Remote Sensing and LiDAR Applications
- Soil erosion and sediment transport
- Phytochemicals and Antioxidant Activities
- Nanocomposite Films for Food Packaging
- Postharvest Quality and Shelf Life Management
- Plant and animal studies
- Tree-ring climate responses
- Leaf Properties and Growth Measurement
- Plant Surface Properties and Treatments
- Plant pathogens and resistance mechanisms
- Archaeological and Geological Studies
Government of Extremadura
2015-2024
Centro Tecnológico Agroalimentario de Extremadura
2015-2023
The effects of different irrigation and crop level regimes on performance Tempranillo vines in a Mediterranean climate were studied under field conditions over 4-year period (2005 to 2008). Vines subjected treatments that provided 100, 50, or 25% evapotranspiration (ET<sub>c</sub>) dry-farmed regime. Two levels (high low) established by veraison cluster thinning for each the treatments. Increased doses resulted higher yield vine growth, although ET<sub>c</sub> treatment showed highest water...
The effects of preflowering defoliation on the qualitative and quantitative composition phenolic compounds in grape skins Tempranillo grapevines grown a semiarid terroir western Spain, Badajoz, were determined. Control vines compared with carried out before flowering (ED) 2009 2010. Forty-two identified quantified skins, including anthocyanins, flavonols, flavanols (cathechin epi-cathechin flavanol dimmers <i>B1</i>, <i>B2</i>, <i>B3</i>), hydroxycinnamic acids, as both simple conjugated...
A study was made of how water status (rainfed vs. irrigated) and crop load (no cluster thinning thinning) can together affect the grapes Vitis vinifera cv. Tempranillo vines growing in a semiarid zone Extremadura (Spain). The were monitored at different stages ripening, measuring peroxidase (POX) superoxide dismutase (SOD) antioxidant activities phenolic content (flavonoids phenylpropanoids), with other parameters. irrigation regime adjusted to provide 100% evapotranspiration (ETc). findings...
“Crop-forcing” is an effective technique to delay grape maturation a period of lower temperatures, and in this way, improve quality. Because the aggressiveness (removal leaves fruit reinitiate second vegetative cycle), it may affect level reserves could provoke progressive vine exhaustion. The aim present work evaluate short- medium-term evolution carbohydrate different plant organs effect “crop-forcing” under irrigation regimes on seasonal biomass production its distribution. study was...
Water is a limiting factor and to adopt the most appropriate agronomic strategy it necessary know water status. The objective (i) analysing of influence different treatments on canopy temperature in vineyards with thermal camera an unmanned aerial vehicle (UAV), (ii) vineyard potentials pressure chamber, (iii) advanced technical feasibility analysis crop monitoring. control treatment (T07) cv. Grenache consisted applying 30% reference evapotranspiration (ETo) irrigation frequency every seven...
<p style="text-align: justify;"><strong>Aim</strong>: The effects of cluster thinning and irrigation regime on vine performance grape wine quality Tempranillo grapevines were studied in a field experiment carried out Extremadura Spain.</p><p justify;"><strong>Methods results</strong>: Treatments combinations two doses (25% 100% estimated crop evapotranspiration) levels (thinned unthinned vines). Cluster was performed just before veraison to retain...
Background and Aims The influence of water status bunch thinning on the chemical sensory properties Vitis vinifera L. cv. Tempranillo wines was studied. vines from Extremadura (Spain) were subjected to two irrigation treatments (100 25% evapotranspiration) bunch-thinning (7–9 4–5 bunches/m2 planting area), applied at veraison. Methods Results Both deficit significantly affected must wine composition properties. Deficit increased floral fruity aromas reduced herbaceous aromas. combination...
Background and Aims. High temperatures during grape ripening have a negative effect on the winemaking characteristics of musts. The crop forcing technique delays to period when are lower. objective this study is provide information winemakers growers how delay in caused by can affect berry performance. Methods Results. This 3 growing seasons (2017–2019) analyzes vineyard Vitis vinifera L. cv. Tempranillo Extremadura, together with two irrigation strategies. grapevines were forced 4 22 days...
In Mediterranean vineyards, high temperatures and scarce water resources affect the quantity quality of harvests. Crop forcing (F) is a novel approach that consists inducing bud burst buds developed during current season in order to modify phenology vine shift berry ripening period moderate temperatures. The aim this work evaluate effect F on cv. Tempranillo grapes semi-arid conditions Extremadura (Spain) under different regimes. A field experiment was carried out from 2017 2019 vineyard...
Abstract. Precision agriculture is a useful tool to assess plant growth and development in vineyards. The present study focused on spatial temporal analysis of vegetation variability, four irrigation treatments with replicates. research was carried out vineyard located the southwest Spain during 2012 2013 growing seasons. Two multispectral sensors mounted an all-terrain vehicle (ATV) were used different seasons/stages order calculate normalized difference index (NDVI). Soil apparent...
In warmer regions, fruit ripening in the wine grape tends to take place during hottest part of growing season. This can have negative consequences on qualitative characteristics berries at harvest. Forcing vines regrow be an aggressive but effective technique delay harvest date, needs evaluated carefully each condition. 2017, experimental vineyard Extremadura, forcing was conducted 3 (F1 treatment) and 22 (F2 days after anthesis (May 18 June 6) by hedging shoots seven nodes removing summer...
Lysimeters are the reference method for determining ETc, but they expensive and complex, which limits their use. The first objective of this work was to adjust evaluate robustness sap flow sensors in order determine transpiration a vineyard and, together with an evaporation model, calculate ETc vineyard. For purpose, we compared water consumption data obtained from weighing lysimeter (ETcLys) sum (TSF) estimated empirically over four years (2012, 2013, 2014 2015). second obtain relationship...
The efficient use of water in the vineyard requires knowledge crop’s response to irrigation terms production and quality interaction same with environmental conditions. In this work, behavior a trellis system cv. Tempranillo, located south-west Spain, was analyzed for three years relation different strategies based on crop evapotranspiration (ETc), two levels load established by early cluster thinning. strategy varied depending characteristics year. vineyard’s biomass increased linear trend...
One of the effects climate change in warm areas is asynchrony between dates technological and phenolic maturity grapes. This important because quality color stability red wines are directly related to content distribution compounds. A novel alternative that has been proposed delay grape ripening make it coincide with a seasonal period more favorable for formation compounds crop forcing. consists severe green pruning after flowering, when buds following year have already differentiated. In...
<p style="text-align: justify;"><strong>Aim</strong>: To compare the effect of water restriction and defoliation on phenol contents oxidant antioxidant activities Tempranillo grapes grown in region Extremadura, Spain.</p><p justify;"><strong>Methods results</strong>: The results showed that at harvest, treatment altered total foliar area, pH, soluble solid (TSS) but not polyphenol oxidase (PPO) superoxide dismutase (SOD) activities. By contrast, did...
Wine phenolics are of considerable interest due to their implication in the organoleptic appreciation wines and bioactive functions as antioxidants. In this work, effects sustainable strategies vineyard, regulated deficit irrigation treatments (RDI) crop load level (CL) on Tempranillo grape over two seasons was studied. Rainfed (T), early (EDI) late (LDI) applied. Cluster thinning (TH) control (C) without cluster removal were also applied under each treatment. The effect CL remained...
ISHS XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): Symposium the Effect of Climate Change Production Quality Grapevines their Products EARLY DEFOLIATION OF 'TEMPRANILLO' GRAPEVINES IN SEMI-ARID TERROIRS SPAIN