Now showing items 45-64 of 159

    • Early stage fruit analysis to detect a high risk of bitter pit in ‘Golden Smoothee’ 

      Torres Lezcano, Estanis; Recasens Guinjuan, Inmaculada; Àvila, Gloria; Lordan Sanahuja, Jaume; Alegre Castellví, Simó (Elsevier, 2017)
      Fruit mineral analysis at harvest is recommended as a predictive method to assess the risk of bitter pit (BP) in apple orchards, although it only provides valuable information if conducted just before harvest. To gain more ...
    • Ecosystem function enhanced by combining four functional types of plant species in intensively managed grassland mixtures: a 3-year continental-scale field experiment 

      Finn, John A.; Kirwan, Laura; Connolly, John; Sebastià, Ma. T.; Helgadottir, Aslaug; Baadshaug, Ole H.; Bélanger, Gilles; Black, Alistair; Brophy, Caroline; Collins, Rosemary P.; Cop, Jure; Dalmannsdóttir, S.; Delgado, Ignacio; Elgersma, Anjo; Fothergill, Michael; Frankow-Lindberg, Bodil E.; Ghesquiere, An; Golinska, Barbara; Golinski, Piotr; Grieu, Philippe; Gustavsson, Anne-Maj; Höglind, Mats; Huguenin-Elie, Olivier; Jørgensen, Marit; Kadziuliene, Zydre; Kurki, Päivi; Llurba, Rosa; Lunnan, Tor; Porqueddu, Claudio; Suter, Matthias; Thumm, Ulrich; Lüscher, Andreas (Wiley online library, 2013)
      A coordinated continental-scale field experiment across 31 sites was used to compare the biomass yield of monocultures and four species mixtures associated with intensively managed agricultural grassland systems. To increase ...
    • Efecto de la fecha de siembra en las malas hierbas en cereales de invierno 

      Montull Daniel, José María; Torra Farré, Joel (Interempresas, 2019-10-07)
      Se debe tener en cuenta que las malas hierbas son propias de cada parcela y por tanto, se debe de plantear una estrategia de control a medio y largo plazo. Esto implica no solo el cultivo, sino también el manejo del suelo ...
    • Effect of patch size on seed removal by harvester ants 

      Torra Farré, Joel; Atanackovic, Valentina; Blanco Moreno, J.; Royo-Esnal, Aritz; Westerman, Paula Renate (European Weed Research Society, 2016-02)
      The harvester ant Messor barbarus can be responsible for high weed seed losses in dryland cereals in Spain. Because weeds occur in patches, harvester ants have to be able to find and exploit patches. However, seed patches ...
    • Effect of temperature and moisture on the dormancy and activation pattern of Oxalis latifolia bulbs 

      Royo-Esnal, Aritz; López Fernández, María Luisa (Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (Espanya), 2008)
      Con objeto de buscar información para un mejor control de Oxalis latifolia Kunth, se ha estudiado el efecto que presentan la temperatura y la humedad sobre la activación de sus bulbos, tanto en la forma común como en la ...
    • Effects of crop and weed densities on the interactions between barley and Lolium rigidum in several Mediterranean locations 

      Izquierdo i Figarola, Jordi; Recasens i Guinjuan, Jordi; Fernández-Quintanilla, César; Gill, Gurjeet (Institut national de la recherche agronomique (França)EDP Sciences, 2003)
      The effects of both barley and Lolium rigidum densities on weed growth and spike production and on crop yield were examined in five field experiments carried out in the Mediterranean drylands of Spain and Western Australia. ...
    • Effects of livestock management on carbon stocks and fluxes in grassland ecosystems in the Pyrenees 

      Casals, Pere; Garcia-Pausas, Jordi; Romanyà i Socoró, Joan; Sanz, Maria J.; Camarero, Lluís; Sebastià, Ma. T. (European Grassland Federation, 2004)
      Grassland ecosystems can constitute a source or a sink in the global C balance, and their management affect their position in that balance. We aim to assess soil organic carbon (SOC) content and determine how grazing affects ...
    • Efficiency, profitability and carbon footprint of different management programs under no-till to control herbicide resistant Papaver rhoeas 

      Recasens i Guinjuan, Jordi; Royo-Esnal, Aritz; Valencia-Gredilla, Francisco; Torra Farré, Joel (MDPI, 2020-04-01)
      The present work examines the effects of different integrated weed management (IWM) programs on multiple herbicide-resistant Papaver rhoeas populations in terms of effectiveness, profitability and carbon footprint. With ...
    • Elemental composition of natural nanoparticles and fine colloids in European forest stream waters and their role as phosphorus carriers 

      Gottselig, N.; Amelung, W.; Kirchner, J. W.; Bol, R.; Eugster, Werner; Granger, S. J.; Hernández-Crespo, C.; Herrmann, F.; Keizer, J. J.; Korkiakoski, M.; Laudon, H.; Lehner, I.; Löfgren, S.; Lohila, A.; Macleod, C. J. A.; Mölder, M.; Müller, C.; Nasta, P.; Nischwitz, V.; Paul-Limoges, E.; Pierret, M. C.; Pilegaard, K.; Romano, N.; Sebastià, Ma. T.; Stähli, M.; Voltz, M.; Vereecken, H.; Siemens, J.; Klumpp, E. (American Geophysical Union, 2017)
      Biogeochemical cycling of elements largely occurs in dissolved state, but many elements may also be bound to natural nanoparticles (NNP, 1-100 nm) and fine colloids (100-450 nm). We examined the hypothesis that the size ...
    • Elementos florísticos de las sierras marginales de los prepirineos centrales catalanes 

      Conesa i Mor, Josep A. (Josep Antoni) (Real Jardin Botanico, 1996)
      Las sierras marginales de los Prepirineos centrales catalanes están formadas por un conjunto de alineaciones de dirección oeste-este que se extienden desde el sur del Montsec hasta la depresión del Ebro.
    • Emergence of field pennycress (Thlaspi arvense L.): Comparison of two accessions and modelling 

      Royo-Esnal, Aritz; Necajeva, Jevgenija; Torra Farré, Joel; Recasens i Guinjuan, Jordi; Gesch, Russell W. (Elsevier B.V., 2015)
      Many weed species are becoming rare due to intense agricultural management, which leads to a decrease of biodiversity in agroecosystems. Cultivating some of these species for their oilseed content may help preserve them ...
    • Emergence patterns of rare arable plants and conservation implications 

      Torra Farré, Joel; Forcella, Frank; Recasens i Guinjuan, Jordi; Royo-Esnal, Aritz (MDPI, 2020-03-01)
      Knowledge on the emergence patterns of rare arable plants (RAP) is essential to design their conservation in Europe. This study hypothesizes that is possible to find functional groups with similar emergence patterns within ...
    • Enhanced 2,4-D metabolism in two resistant papaver rhoeas populations from Spain 

      Torra Farré, Joel; Rojano-Delgado, Antonia M.; Rey Caballero, Jordi; Royo-Esnal, Aritz; Salas, Maria L.; Prado, Rafael de (Frontiers Media, 2017-07-13)
      Corn poppy (Papaver rhoeas), the most problematic broadleaf weed in winter cereals in Southern Europe, has developed resistance to the widely-used herbicide, 2,4-D. The first reported resistance mechanism in this species ...
    • Estado actual de las resistencias de malas hierbas a herbicidas 

      Taberner Palou, Andreu (Mapama, 2006)
      En este artículo se describe la situación actual de las resistencias de las malas hierbas a los herbicidas en España. Antes, sin embargo, se hace hincapié en las principales definiciones a tener en cuenta en este ámbito. ...
    • Estructura y sintaxonomía de los hayedos del valle de Gresolet 

      Sebastià, Ma. T. (Universitat de Barcelona, 1993)
      Structure and syntaxonomy of beech forests from Gresolet Valley (E Pyrenees). Six communities related to beech forest from Gresolet Valley (Alt Bergucda) arc compared, based in their structure and synsystematics. A new ...
    • Estudi de la flora exòtica del riu Segre al seu pas pel Segrià. Origen i potencial invasor 

      Juárez Escario, Alejandro; Solé Senan, Xavier Oriol; Pedrol Solanes, Joan; Conesa i Mor, Josep A. (Josep Antoni) (Centre d'Estudis Comarcals del Segrià, 2016)
      A causa del greu impacte ecològic i econòmic de la flora exòtica invasora als ecosistemes, i a la major susceptibilitat dels hàbitats riparis a les invasions biològiques, és important mantenir un coneixement actualitzat ...
    • Estudio de los factores relacionados con el Bitter Pit en la zona fruticola de Lleida 

      Fonseca Salcedo, Francisco; Lordan Sanahuja, Jaume; Pascual Roca, Miquel; Villar Mir, Josep Ma.; Rufat i Lamarca, Josep (Mapama, 2011)
      En el presente artículo se han estudiado datos de 110 fincas productoras de manzana Golden, localizadas en el área frutícola de Lleida, concretamente en el área frutal de los regadíos del Pla d' Urgell y del Segrià, con ...
    • Evaluation of peach tree growth characteristics under different irrigation strategies by LIDAR system: preliminary results 

      Pascual Roca, Miquel; Villar Mir, Josep Ma.; Rufat i Lamarca, Josep; Rosell Polo, Joan Ramon; Sanz Cortiella, Ricardo; Arnó Satorra, Jaume (International Society for Horticultural Science (ISHS), 2011)
      In a four-year experiment on peach (Prunus persica L. Batsch ‘Andross’) for fruit processing, canopy volume and tree shape were evaluated by scanning trees with a Light Detection and Ranging (LIDAR) system: a non-destructive ...
    • Evenness drives consistent diversity effects in intensive grassland systems across 28 European sites 

      Kirwan, Laura; Lüscher, Andreas; Sebastià, Ma. T.; Finn, John A.; Collins, R. P.; Porqueddu, C.; Helgadottir, A.; Baadshaug, Ole H.; Brophy, Caroline; Coran, C.; Dalmannsdóttir, S.; Delgado, Ignacio; Elgersma, Anjo; Fothergill, Michael; Frankow-Lindberg, Bodil E.; Golinski, Piotr; Grieu, Philippe; Gustavsson, Anne-Maj; Höglind, Mats; Huguenin-Elie, Olivier; Iliadis, C.; Jorgensen, M.; Kadziuliene, Zydre; Karyotis, T.; Lunnan, Tor; Malengier, M.; Maltoni, S.; Meyer, V.; Nyfeler, D.; Nykanen-Kurki, P.; Parente, J.; Smit, H.J.; Thumm, Ulrich; Connolly, John (Wiley, 2007)
      Ecological and agronomic research suggests that increased crop diversity in species-poor intensive systems may improve their provision of ecosystem services. Such general predictions can have critical importance for worldwide ...
    • Evolución de la biomasa de los grupos taxonómicos y funcionales de plantas en comunidades pascícolas pirenaicas 

      Sebastià, Ma. T.; Canals, Rosa M. (Universitat Autònoma de Barcelona, 1992)
      Analizamos las estrategias de desarrollo de los principales grupos funcionales de plantas de algunos pastos subalpinos pirenaicos (gramíneas, otras graminoides, leguminosas, otras no graminoides) a lo largo del periodo ...