Now showing items 25-44 of 57

    Growth and size variation of Senegalese sole (Solea senegalensis) 

    Sánchez Fernández, Pablo (Date of defense: 2012-11-19)

    Senegalese sole (Solea senegalensis) is a flatfish of high commercial importance in Southern Europe that has been a promising species for diversifying Mediterranean aquaculture since early 1980's. It has failed to reach ...

    Hydrodynamic characterisation of aquaculture tanks and design criteria for improving self-cleaning properties 

    Masaló Llorà, Ingrid (Date of defense: 2008-09-10)

    El propòsit del treball es caracteritzar hidrodinàmicament els tancs més utilitzats en el sector aqüícola, i donar pautes de disseny per millorar-ne l'autoneteja, i optimitzar l'eficiència d'utilització tant de l'espai com ...

    Improvement of spray application process in greenhouse tomato crop : assessment of adapted spraying technologies and methods for canopy characterization 

    Llop Casamada, Jordi (Date of defense: 2017-07-20)

    Vegetable production in greenhouses is an important and productive economic activity for agricultural businesses in Southern Europe. One of the most risky factors affecting this activity is the use of plant protection ...

    Improving monitoring and management of low-lying coastal areas with Sentinel-2 data: the Ebro Delta showcase 

    Soriano González, Jesús (Date of defense: 2023-04-28)

    (English) Coastal areas support important ecosystems with great ecological value, giving rise to countless resources increasingly exploited by humans. Understanding the processes occurring in both inland and aquatic ...

    Indicadors de qualitat bioquímica, relacionats amb el cicle del carboni, en la restauració de sòls amb fang de depuradora sotmès a assecatge tèrmic i a compostatge 

    Jiménez de Ridder, Patrícia (Date of defense: 2014-07-29)

    In our work we studied some aspects of biochemical quality in the rehabilitation process of degraded soils through the application of sewage sludge. As biochemical quality parameters we focused on the carbon cycle, through ...

    Individual-based observations and individual-based simulations to study Saccharomyces cerevisiae cultures 

    Portell Canal, Xavier (Date of defense: 2014-12-09)

    Saccharomyces cerevisiae is one of the yeasts with major economic, social, and health significance in human culture. Depending on the growth conditions experienced by the cell, S. cerevisiae growth can proceed via fermentative, ...

    Influence of agricultural practices on the microbiome and the antibiotic resistance gene complement in soils, plants, and crops 

    Cerqueira, Francisco Diogo de Almeida (Date of defense: 2020-06-08)

    Antibiotic (AB) Resistance is an increasing global problem for public health, with multi-resistant bacteria persisting and spreading not only in clinical settings but also in the environment. One of the possible vectors ...

    Influence of the characteristics of organic matter on the efficiency of horizontal subsurface-flow constructed wetlands 

    Caselles Osorio, Aracelly (Date of defense: 2007-01-12)

    Los sistemas de humedales construidos de flujo subsuperficial horizontal (HCFSS) constituyen una tecnología válida para la depuración de aguas residuales urbanas. Uno de los principales objetivos de estos sistemas es ...

    Lixiviados en horticultura intensiva ornamental y su tratamiento mediante humedades artificales 

    Narváez Torres, Lola (Date of defense: 2012-07-09)

    Nurseries growing potted ornamental plants carry an important activity in the overall agricultural production in Catalonia. As a result of the activity developed and agricultural practices adopted by nursery growers ...

    L’agricultura en els espais metropolitans : el cas de la Regió Metropolitana de Barcelona 

    Recasens Gracia, Francisco Javier (Date of defense: 2020-09-16)

    Urban agriculture is defined, as the agricultural and livestock activities that are carried out within or around cities. FAO's definition includes those services offered by agrarian activity that benefit the society. In ...

    Manejo integrado de plagas en legumbres almacenadas mediante el uso de atmósferas modificadas y de control biológico 

    Iturralde García, Rey David (Date of defense: 2020-07-24)

    Spain is one of the main producing countries of chickpeas and beans in Europe and is also the main importer. Nowadays, pest control is mainly based on the application of phosphine. However, the risks on human health and ...

    Meloidogyne species in cucurbit crops : characterization and quantification of the host-parasite relationship 

    López Gómez, Manuel Francisco (Date of defense: 2015-07-24)

    The infection process of Meloidogyne arenaria, M. incognita and M. javanica was compared on zucchini squash, cucumber, melon, pumpkin and watermelon in a growth chamber. All cucurbits were susceptible to the three isolates ...

    Micropropagació de Cynara scolymus CV. "Blanca de tudela": condicionants del procés i aproximació a la caracterització anatòmico-fisiològica en les diferents fases de cultiu 

    Cañameras, Núria (Date of defense: 1990-01-01)

    Se estudia la respuesta a diferentes tratamientos en la micro propagación de Cymara Scolymus i la evolución de las características físico-anatómicas en las diferentes fases. La mayor respuesta morfogenetica durante la fase ...

    Millora de la qualitat sensorial i nutricional de les varietats tradicionals hortícoles: el cas del calçot (Allium cepa L.) 

    Sans Molins, Sílvia (Date of defense: 2019-10-31)

    Sensory and nutritional quality are key elements for consumers, providing added value to agri-food products. However, there is a general perception that horticultural products have lost their quality, especially their ...

    Millora genètica del calçot (Allium cepa L.) : desenvolupament d'eines de selecció i aplicació a l'obtenció de nous cultivars 

    Simó Cruanyes, Joan (Date of defense: 2013-11-14)

    Els calçots, tiges florals immadures de la ceba (Allium cepa L.), són un cultiu típic de Catalunya i juguen un paper important en l’agricultura catalana. Es calcula que la producció de la campanya 2012-2013 va ser d’uns ...

    Natural enemies for the conservation biological control of Myzus persicae in Mediterranean peach orchards 

    Aparicio del Moral, Yahana Michelle (Date of defense: 2019-07-23)

    Peach and nectarine tree belongs to the species Prunus persica and is the third most produced fruit species in the world. Within Europe, Spain is a leading producer. Most of the crops are located in Catalonia (northeastern ...

    Obtaining, characterizing and studying the in vitro bioavailability of different cation complexations for food fortification 

    Mattar, Ghadeer (Date of defense: 2023-07-21)

    (English) Although mineral chelates have been produced for more than 70 years, neither production methods nor optimum conditions are well specified. The solid evidence that the complexes are true chelates is still missing. ...

    Population dynamics of Meloidogyne spp. on tomato and cucumber and biologically-based management strategies 

    Giné Blasco, Ariadna (Date of defense: 2016-12-21)

    The general objective of the thesis was to determinate the population dynamics of Meloidogyne on tomato and cucumber, the yield losses caused by the nematode and the effect of biologically-based management strategies to ...

    Recuperación de solutos del hielo proveniente de un crioconcentrador de placas : cinética y concentración 

    Gulfo Cabrales, Rafael Antonio (Date of defense: 2014-09-22)

    Research about the cryoconcentration process of food fluids is an important area of study. Cryoconcentration is a concentration process of fluids by separating water into ice shape. Freeze concentration, allows to obtain ...

    Sistemas de regeneración y reutilización de aguas residuales. Metodología para el análisis técnico-económico y casos 

    Seguí Amórtegui, Luis Alberto (Date of defense: 2004-03-18)

    El objetivo principal de esta tesis es el desarrollo de una metodología para el análisis técnico-económico de los Sistemas de Regeneración y Reutilización de Aguas Residuales (SRRAR). La metodología se fundamenta en la ...