Víctor Blanco

Víctor Blanco
Washington State University | WSU · College of Agricultural, Human, and Natural Resource Sciences

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21
Publications
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119
Citations

Publications

Publications (21)
Article
Full-text available
Water is a limited resource in arid and semi-arid regions, as is the case in the Mediterranean Basin, where demographic and climatic conditions make it ideal for growing fruits and vegetables, but a greater volume of water is required. Deficit irrigation strategies have proven to be successful in optimizing available water without pernicious impact...
Article
Full-text available
Stem water potential (Ψstem) is considered to be the standard measure of plant water status. However, it is measured with the pressure chamber (PC), an equipment that can neither provide continuous information nor be automated, limiting its use. Recent developments of microtensiometers (MT; FloraPulse sensors), which can continuously measure water...
Article
Full-text available
The present work evaluates the main adaptive mechanisms developed by young sweet cherry trees (Prunus avium L.) to cope with drought. For this purpose, the young trees were subjected to two drought cycles with different water stress intensities followed by a recovery period. Three irrigation treatments were applied: control treatment (CTL) irrigate...
Chapter
Full-text available
El agua es un bien escaso, especialmente en las regiones áridas y semiáridas. Este es el caso de la Cuenca Mediterránea, donde sus condiciones demográficas y climáticas la hacen idónea para el cultivo de frutas y hortalizas, demandando un volumen mayor de recursos hídricos. Las estrategias de riego deficitario se han mostrado exitosas, pero resulta...
Article
It is known that high tunnels modify sweet cherry physiological and agronomical response; however, horticultural practices such as irrigation have usually not been adapted to this cultivation system because there is no information about the effects of sweet cherry growing under this controlled environment on fruit tree water relations, water produc...
Article
Full-text available
The use of protective covers, such as high tunnels, is recognized as an effective technology to reduce rain-induced fruit cracking in sweet cherries; however, there is a lack of information concerning the effects of this production system on the fruit’s mineral concentration, quality, and postharvest life. This study assesses the feasibility of usi...
Article
Full-text available
Infrared thermography has been introduced as an affordable tool for plant water status monitoring, especially in regions where water availability is the main limiting factor in agricultural production. This paper outlines the potential applications of low-cost thermal imaging devices to evaluate the water status of young and mature sweet cherry tre...
Article
Full-text available
The present work aims to assess the usefulness of five vegetation indices (VI) derived from multispectral UAS imagery to capture the effects of deficit irrigation on the canopy structure of sweet cherry trees (Prunus avium L.) in southeastern Spain. Three irrigation treatments were assayed, a control treatment and two regulated deficit irrigation t...
Article
The effect of a UV–C postharvest treatment (4 kJ m–2) on physicochemical quality, phenolic contents and total antioxidant capacity of ‘Prime Giant’ sweet cherry throughout 20 d at 2 °C (simulated cold storage during transportation period) plus 5 d at 15 °C (additional shelf life period) was studied. Furthermore, the effect of two regulated deficit...
Article
Full-text available
The reproductive response of fifteen year old sweet cherry trees (Prunus avium L.) combination ‘Prime Giant’/SL64 under Mediterranean climate to deficit irrigation was studied in a commercial orchard in south-eastern Spain for four seasons. Three irrigation treatments were assayed: (i) control treatment, irrigated without restrictions at 110% of se...
Article
Use of high tunnels in sweet cherry production is a popular way to reduce rain-induced fruit cracking. However, little information is available for its effects on tree physiology and fruit quality in established sweet cherry orchards. The aim of this study was to evaluate changes in the physiological and production variables of sweet cherry under h...
Article
Full-text available
The agronomic response of sweet cherry (Prunus avium L.) ‘Prime Giant’ to a 4 year-long experiment involving deficit irrigation strategies in a Mediterranean climate was studied in a commercial orchard located in the southeast of Spain (Jumilla, Spain). Four drip irrigation treatments were imposed: (i) control treatment (CTL), irrigated without res...
Article
Keywords: Fruit water potential Pedicel Postharvest fruit quality Stem water potential Water stress A B S T R A C T The performance of 'Prime Giant' sweet cherry trees under three different irrigation regimes was examined during two consecutive seasons, 2015-2016 and 2016-2017. The irrigation treatments evaluated were: (i) a control treatment (CTL)...
Article
A two-year experiment with sweet cherry (P. avium L. cv Prime Giant) trees was carried out to ascertain which of the following commonly used soil and plant water indicators is most effective for deficit irrigation scheduling: Ψstem (midday stem water potential), MDS (maximum daily branch shrinkage), gs (stomatal conductance), θv (soil volumetric wa...
Conference Paper
Full-text available
La determinación de la evapotranspiración del cultivo (ETc) es un tema de gran importancia en la gestión del regadío. Numerosos autores han propuesto coeficientes y técnicas para la obtención de la ETc. Desde el punto de vista práctico, la ETc es directamente medible con técnicas de lisimetría, pero dada la gran complejidad y la poca escalabilidad...

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Projects

Project (1)
Project
This project aims to contribute to the necessary improvement of water management in woody crops of great interest to Spain and countries of the Mediterranean basin, such as almond tree under traditional farming system and high crop density and pomegranate, a crop in expansion and very well adapted to limiting conditions of water and its quality. The subproject is based on the need to have a precise knowledge of the response of the crop to water deficit, both physiological and agronomic, to develop criteria and strategies for scientific programming of Controlled Deficit Irrigation (RDC) and that, for its precise implementation, need equipment and tools that are easily accessible to the agricultural sector, such as low-cost sensors and models of automatic programming of irrigation. Through the objectives set, the aim is to study in depth the water relations in the soil-plant-atmosphere continuum by using new modelling techniques with the acquisition and statistical and mathematical treatment of more complete and transversal databases, where the surface temperature of the canopy and multispectral images play an important role. To facilitate this objective, the subproject contemplates as parallel objectives: i) the improvement of self-designed multiparametric sensors, ii) the assembly of a platform for research on plant indicators, that can be used for the automatic and controlled obtaining of a large number of thermal and multispectral images, iii) the integration of measurement nodes in wireless sensor network systems and iv) the design and training of a decision-making aid model (DSS), trained with indicators of the water status of the soil and plant for the automatic programming of irrigation. The marked final objective of this subproject aims to combine the advantages of the use of deficit irrigation strategies controlled in fruit crops of pomegranate and almond trees, in areas with low water availability, with the use of new technologies in the field of modeling and ICTs. The great sensitivity developed by farmers and entrepreneurs in semi-arid areas for the optimal use of water has generated an open mind to try and adopt new forms of management and acquisition of technologies that can result in a more efficient use of available water resources.