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  • Determination of drift potential of different flat fan nozzles on a boom sprayer using a test bench

     Gil Moya, Emilio; Balsari, Paolo; Gallart Gonzalez-palacio, Montserrat; Llorens Calveras, Jordi; Marucco, Paolo; Andersen, Per Gummer; Fabregas Bargallo, Francesc Xavier; Llop Casamada, Jordi
    Crop protection
    Vol. 56, p. 58-68
    DOI: 10.1016/j.cropro.2013.10.018
    Date of publication: 2014-02
    Journal article

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    This study's objective was to evaluate the functionality of an ad hoc test bench for spray drift measurement with boom sprayers, using it for evaluating different nozzles according to drift risk. The repeatability of results was evaluated by conducting similar tests at two different laboratories. Drift potential values (DPV) obtained showed an interesting effect of Venturi flat fan nozzles on drift reduction, in comparison with conventional flat fan nozzles (reference nozzle was XR 11003). Newly designed flat fan nozzles reduced the risk of drift. Reasonably relations between 10th-percentile, D[v,0.1], 50th-percentile or Volume Median Diameter, D[v,0.5], 90th-percentile, D[v,0.9], V100 and DPV were observed in all cases, with R2 values of 0.58, 0.65, 0.66 and 0.72, respectively. The lowest drift values were achieved with TTI and TD Spray Max nozzles; they were significantly lower than those obtained for IDK and AIXR ones. Results indicated that the drift test bench can be used as an alternative to the official standard procedure for drift measurements on boom sprayers (e.g. ISO 22866), as it is able to discriminate the influence of different boom settings (especially nozzle types) on drift. Further studies could be useful in order to prove that the classification of nozzles according to drift risk obtained using the test bench is comparable to the nozzle classifications obtained applying the ISO 22866 test method.

  • Herramientas de base fotónica para la gestión agronómica y el uso de productos fitosanitarios sostenible en cultivos arbóreos en el marco de la Agricultura de precisión

     Fabregas Bargallo, Francesc Xavier; Izquierdo Figarola, Jordi; Almajano Pablos, Maria Pilar; Alonso Prados, Elena; Llorens Calveras, Jordi; Gallart Gonzalez-palacio, Montserrat; Gil Moya, Emilio
    Competitive project

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  • Advanced technologies for the improvement of spray application techniques in spanish viticulture: an overview

     Gil Moya, Emilio; Arnó Satorra, Jaume; Llorens Calveras, Jordi; Sanz Cortiella, Ricardo; Llop Casamada, Jordi; Rosell-Polo, Joan R.; Gallart Gonzalez-palacio, Montserrat; Escolà, Alexandre
    Sensors
    Vol. 14, num. 1, p. 691-708
    DOI: 10.3390/s140100691
    Date of publication: 2014-01-02
    Journal article

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    Spraying techniques have been undergoing continuous evolution in recent decades. This paper presents part of the research work carried out in Spain in the field of sensors for characterizing vineyard canopies and monitoring spray drift in order to improve vineyard spraying and make it more sustainable. Some methods and geostatistical procedures for mapping vineyard parameters are proposed, and the development of a variable rate sprayer is described. All these technologies are interesting in terms of adjusting the amount of pesticides applied to the target canopy.

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    Spray adjustments based on LWA concept in vineyard. Relationship between canopy and coverage for different application settings  Open access

     Gil Moya, Emilio; Gallart Gonzalez-palacio, Montserrat; Llorens Calveras, Jordi; Llop Casamada, Jordi; Bayer, Tania; Carvalho, Claudia
    AAB Conference. International Advances in Pesticide Application
    p. 25-32
    Presentation's date: 2014-01-08
    Presentation of work at congresses

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    Crop-adapted dosing of agrochemicals, i.e. dose adjustment has been widely discussed in previous research. In all cases, the main goal has been to adapt the total amount of plant protection products (PPP) to crop characteristics, but the most difficult aspect seems to select the most suitable crop parameter to be used for dose expression. This situation has resulted in a recent proposal by the European agrochemical manufacturing industry to harmonise, across Europe, the efficacy evaluation stage of pesticide registration based on Leaf Wall Area (LWA) concept. However, other than the problem of the ¿dose expression unit¿, which expresses the product quantity in relation to the treated area, the achievement of an adequate and optimal volume rate for an intended canopy must be established and determined separately. This research present the results obtained during the spray process on a vineyard plantation (var. Merlot) using an IRIS multi-row sprayer (Ilemo-Hardi, S.A.U.) Three different adjustments were evaluated from low (250 L 10000 m -2 ) to high (500 L 10000 m -2 ) LWA, maintaining in all cases the same nozzle size (Albuz ATR lilac) and forward speed. Average canopy height was 0.8 m. In order to evaluate the effect of canopy characteristics other than crop height, a LIDAR sensor was used for a complete canopy characterization. Research was arranged in order to obtain the relation hip between canopy characteristics and the most adequate amount of liquid for a homogenous canopy wall

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    Projecte formatiu per a la millora de les pràctiques fitosanitàries a la conca de l¿Ebre  Open access

     Ercilla Montserrat, Mireia; Gallart Gonzalez-palacio, Montserrat; Llop Casamada, Jordi; Gil Moya, Emilio
    Jornada de Protecció Vegetal de l'Institut Català d'Estudis Agraris
    p. 19-27
    Presentation's date: 2014-02-28
    Presentation of work at congresses

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    El Reial Decret 60/2011, que transposa a la legislació espanyola la Directiva 2008/105/CE, estableix les normes de qualitat ambiental (és a dir llindars màxims de concentració) de les substàncies prioritàries i altres contaminants (Annex I) i les substàncies preferents (Annex II) en les aigües superficials. Algunes d'aquestes substàncies corresponen a matèries actives de productes fitosanitaris. En aquest context, i emmarcat dins de les activitats de la Càtedra Syngenta-UPC, sorgeix un projecte formatiu per a la millora de les pràctiques fitosanitàries. La hipòtesi de partida és que la millora d¿aquestes pràctiques comporta una reducció significativa i perceptible de la contaminació de les aigües per plaguicides, fet que és especialment rellevant en zones on es detecten excessos d¿aquestes matèries.

    El Reial Decret 60/2011, que transposa a la legislació espanyola la Directiva 2008/105/CE, estableix les normes de qualitat ambiental (és a dir llindars màxims de concentració) de les substàncies prioritàries i altres contaminants (Annex I) i les substàncies preferents (Annex II) en les aigües superficials. Algunes d'aquestes substàncies corresponen a matèries actives de productes fitosanitaris. En aquest context, i emmarcat dins de les activitats de la Càtedra Syngenta-UPC, sorgeix un projecte formatiu per a la millora de les pràctiques fitosanitàries. La hipòtesi de partida és que la millora d’aquestes pràctiques comporta una reducció significativa i perceptible de la contaminació de les aigües per plaguicides, fet que és especialment rellevant en zones on es detecten excessos d’aquestes matèries.

  • Study and development of a test methodology to assess potential drift generated by air-assisted sprayers

     Balsari, Paolo; Gil Moya, Emilio; Marucco, Paolo; Gallart Gonzalez-palacio, Montserrat; Bozzer, Claudio; Llop Casamada, Jordi; Tamagnone, Mario
    AAB Conference. International Advances in Pesticide Application
    p. 339-346
    Presentation's date: 2014-01-10
    Presentation of work at congresses

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    Use of a terrestrial LIDAR sensor for drift detection in vineyard spraying  Open access

     Gil Moya, Emilio; Llorens Calveras, Jordi; Llop Casamada, Jordi; Fabregas Bargallo, Francesc Xavier; Gallart Gonzalez-palacio, Montserrat
    Sensors
    Vol. 13, num. 1, p. 516-534
    DOI: 10.3390/s130100516
    Date of publication: 2013-01-02
    Journal article

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    The use of a scanning Light Detection and Ranging (LIDAR) system to characterize drift during pesticide application is described. The LIDAR system is compared with an ad hoc test bench used to quantify the amount of spray liquid moving beyond the canopy. Two sprayers were used during the field test; a conventional mist blower at two air flow rates (27,507 and 34,959 m3·h-1) equipped with two different nozzle types (conventional and air injection) and a multi row sprayer with individually oriented air outlets. A simple model based on a linear function was used to predict spray deposit using LIDAR measurements and to compare with the deposits measured over the test bench. Results showed differences in the effectiveness of the LIDAR sensor depending on the sprayed droplet size (nozzle type) and air intensity. For conventional mist blower and low air flow rate; the sensor detects a greater number of drift drops obtaining a better correlation (r = 0.91; p < 0.01) than for the case of coarse droplets or high air flow rate. In the case of the multi row sprayer; drift deposition in the test bench was very poor. In general; the use of the LIDAR sensor presents an interesting and easy technique to establish the potential drift of a specific spray situation as an adequate alternative for the evaluation of drift potential.

    The use of a scanning Light Detection and Ranging (LIDAR) system to characterize drift during pesticide application is described. The LIDAR system is compared with an ad hoc test bench used to quantify the amount of spray liquid moving beyond the canopy. Two sprayers were used during the field test; a conventional mist blower at two air flow rates (27,507 and 34,959 m3·h-1) equipped with two different nozzle types (conventional and air injection) and a multi row sprayer with individually oriented air outlets. A simple model based on a linear function was used to predict spray deposit using LIDAR measurements and to compare with the deposits measured over the test bench. Results showed differences in the effectiveness of the LIDAR sensor depending on the sprayed droplet size (nozzle type) and air intensity. For conventional mist blower and low air flow rate; the sensor detects a greater number of drift drops obtaining a better correlation (r = 0.91; p < 0.01) than for the case of coarse droplets or high air flow rate. In the case of the multi row sprayer; drift deposition in the test bench was very poor. In general; the use of the LIDAR sensor presents an interesting and easy technique to establish the potential drift of a specific spray situation as an adequate alternative for the evaluation of drift potential.

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    Development of two portable patternators to improve drift control and operator training in the operation of vineyard sprayers  Open access

     Gil Moya, Emilio; Landers, Andrew; Gallart Gonzalez-palacio, Montserrat; Llorens Calveras, Jordi
    Spanish journal of agricultural research
    num. 3, p. 615-625
    DOI: 10.5424/sjar/2013113-3638
    Date of publication: 2013
    Journal article

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    Spray drift can be defined as the quantity of plant protection product that is carried out of the sprayed area by the action of air currents during the application process. Efficacy of pesticide applications in orchards and vineyards is highly dependent on matching the canopy characteristics with the liquid distribution on a vertical plane, this being influenced by the type of sprayer, the nozzle orientation and air outlet adjustment. Two simple vertical patternators were designed and developed with the express purpose to be used in field conditions for the adjustment of vineyard canopy sprayers. Three different orchard sprayers were selected for comparative field trials of two new patternators with an already commercially available portable vertical patternator designed at University of Turin (Italy). The objective was to evaluate their efficiency in terms of spray recovery, symmetry and repeatability. Results show the ability of the two prototypes to measure the vertical distribution of liquid, as well as the important similarities between the liquid distribution profiles obtained with both patternators in comparison to the reference one. Trials conducted with the three different orchard sprayers show the suitability of this kind of tool, not only for research purposes but also for training activities and as part of the sprayer calibration process. Important benefits from both an economic and a sustainable point of view can be obtained regarding adequate liquid distribution according to the crop characteristics, this being especially interesting in field conditions.

    Spray drift can be defined as the quantity of plant protection product that is carried out of the sprayed area by the action of air currents during the application process. Efficacy of pesticide applications in orchards and vineyards is highly dependent on matching the canopy characteristics with the liquid distribution on a vertical plane, this being influenced by the type of sprayer, the nozzle orientation and air outlet adjustment. Two simple vertical patternators were designed and developed with the express purpose to be used in field conditions for the adjustment of vineyard canopy sprayers. Three different orchard sprayers were selected for comparative field trials of two new patternators with an already commercially available portable vertical patternator designed at University of Turin (Italy). The objective was to evaluate their efficiency in terms of spray recovery, symmetry and repeatability. Results show the ability of the two prototypes to measure the vertical distribution of liquid, as well as the important similarities between the liquid distribution profiles obtained with both patternators in comparison to the reference one. Trials conducted with the three different orchard sprayers show the suitability of this kind of tool, not only for research purposes but also for training activities and as part of the sprayer calibration process. Important benefits from both an economic and a sustainable point of view can be obtained regarding adequate liquid distribution according to the crop characteristics, this being especially interesting in field conditions.

  • Drift mitigation training: Key point to improve pesticide use

     Gil Moya, Emilio; Gallart Gonzalez-palacio, Montserrat; Doruchowski, Greg; Balsari, Paolo; Codis, Sebastien; Marucco, Paolo; Roettele, Manfred; Herbst, Andreas; Pauwelyn, Ellen
    Workshop on Spray Application Techniques in Fruit Growing
    p. 159-161
    Presentation's date: 2013-06-28
    Presentation of work at congresses

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    Formación para la prevención de la deriva: factor clave para la mejora de las aplicaciones de fitosanitarios. Proyecto TOPPS-Prowadis  Open access

     Gil Moya, Emilio; Gallart Gonzalez-palacio, Montserrat; Llop Casamada, Jordi; Ercilla Montserrat, Mireia
    Congreso Ibérico de Agroingenieria
    p. 1-6
    Presentation's date: 2013-08-27
    Presentation of work at congresses

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    Efecto del número y tipo de boquillas en la calidad de las aplicaciones en invernaderos con barras verticales  Open access

     Llop Casamada, Jordi; Gil Moya, Emilio; Gallart Gonzalez-palacio, Montserrat; Bayer, Tania; Sánchez-Hermosilla López, Julián
    Congreso Ibérico de Agroingenieria
    p. 1-5
    Presentation's date: 2013-08-28
    Presentation of work at congresses

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  • Determination of Drift Potential Value (DPV) for different flat fan nozzles using a horizontal drift test bench

     Gil Moya, Emilio; Gallart Gonzalez-palacio, Montserrat; Llorens Calveras, Jordi; Llop Casamada, Jordi
    International Conference on Agricultural Engineering
    Presentation's date: 2012-07-10
    Presentation of work at congresses

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    TOPPS-PROWADIS: Un nou projecte per reduir la contaminació de les aigües  Open access

     Gallart Gonzalez-palacio, Montserrat; Gil Moya, Emilio; Llorens Calveras, Jordi; Llop Casamada, Jordi; Duarte Ortega, Sonia
    Jornada de Protecció Vegetal de l'Intitut Català d'Estudis Agraris
    p. 31
    Presentation's date: 2012-02-10
    Presentation of work at congresses

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  • Source-sorted collection and valorisation of organic waste in the Campus of Baix Llobregat (UPC)

     Lopez Martinez, Marga; Huerta Pujol, Oscar; Duarte Ortega, Sonia; Gallart Gonzalez-palacio, Montserrat; Aparicio, Oscar; Aguilar Martí, Meritxell; Martinez Farre, Francesc Xavier
    Global Assessment for Organic Resources and Waste Management
    p. publicació en CD-
    Presentation's date: 2012-06-12
    Presentation of work at congresses

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  • Organizació del International Symposium on Growing Media, Composting and Substrate Analysis

     Gallart Gonzalez-palacio, Montserrat; Lopez Martinez, Marga; Huerta Pujol, Oscar; Carazo Gomez, Nuria; Duarte Ortega, Sonia; Martinez Farre, Francesc Xavier
    Competitive project

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  • Diseño de sistemas de sensores para la vigilancia y control del proceso de compostaje

     Hornero Ocaña, Gema; Quilez Figuerola, Marcos; Polo Cantero, Jose; Cuadras Tomas, Angel; Huerta Pujol, Oscar; Lopez Martinez, Marga; Martinez Farre, Francesc Xavier; Gallart Gonzalez-palacio, Montserrat; Casas Piedrafita, Jaime Oscar
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  • Organización del International Symposium on Growing Media, Composting and Substrate Analysis

     Gallart Gonzalez-palacio, Montserrat; Lopez Martinez, Marga; Huerta Pujol, Oscar; Trillas Gay, Isabel; Cáceres Reyes, Rafaela; Carazo Gomez, Nuria; Duarte Ortega, Sonia; Martinez Farre, Francesc Xavier
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  • Caracterización de la respuesta planta asociada a las enmiendas supresivas

     Trillas Gay, Isabel; Martinez Farre, Francesc Xavier; Gallart Gonzalez-palacio, Montserrat; Huerta Pujol, Oscar; Lopez Martinez, Marga; Sants, Dolors; Segarra, Guillem
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  • Effect of collection system on mineral content of biowaste

     Huerta Pujol, Oscar; Gallart Gonzalez-palacio, Montserrat; Soliva Torrentó, Montserrat; Martinez Farre, Francesc Xavier; Lopez Martinez, Marga
    Resources, conservation and recycling
    Vol. 55, num. 11, p. 1095-1099
    DOI: 10.1016/j.resconrec.2011.06.008
    Date of publication: 2011-09
    Journal article

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  • Suitability of different composts for container production of ornamental shrubs

     Domínguez, Gloria; Reñaga, Laura; Gallart Gonzalez-palacio, Montserrat; Lopez Martinez, Marga; Huerta Pujol, Oscar; Soliva Torrento, Montserrat; Martinez Farre, Francesc Xavier
    International Symposium on Growing Media, Composting and Substrate Analysis
    p. 73
    Presentation's date: 2011-10-27
    Presentation of work at congresses

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    Effect of nutrient solution composition and substrates on lettuce transplant production.  Open access

     Sanglas, Josefina; Huerta Pujol, Oscar; Duarte Ortega, Sonia; Lopez Martinez, Marga; Gallart Gonzalez-palacio, Montserrat; Martinez Farre, Francesc Xavier; Soliva Torrentó, Montserrat
    International Symposium on Growing Media, Composting and Substrate Analysis
    p. 131
    Presentation of work at congresses

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    Modelos hidrotermales de emergencia para Echinochloa crus-galli y Digitaria sanguinalis en maíz  Open access

     Izquierdo Figarola, Jordi; Gallart Gonzalez-palacio, Montserrat; Galve, Roberto
    Congreso Nacional de Malherbología
    p. 223-226
    Presentation's date: 2011-11-23
    Presentation of work at congresses

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  • Origin of compost salinity and its constraints for compost uses

     Huerta Pujol, Oscar; Lopez Martinez, Marga; Gallart Gonzalez-palacio, Montserrat; Martinez Farre, Francesc Xavier; Soliva Torrento, Montserrat
    International Symposium on Growing Media, Composting and Substrate Analysis
    p. 47
    Presentation's date: 2011-10-18
    Presentation of work at congresses

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  • Valorització en origen de residus orgànics en el Parc Mediterrani de la Tecnologia

     Lopez Martinez, Marga; Casas Piedrafita, Jaime Oscar; Duarte Ortega, Sonia; Huerta Pujol, Oscar; Gallart Gonzalez-palacio, Montserrat; Gener Esteve, Olga; Martinez Farre, Francesc Xavier; Soliva Torrentó, Montserrat
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    El uso de compost de residuos sólidos municipales como enmienda orgánica: Aportaciones de diferentes componentes según origen  Open access

     Huerta Pujol, Oscar; Martinez Farre, Francesc Xavier; Gallart Gonzalez-palacio, Montserrat; Soliva Torrentó, Montserrat; Lopez Martinez, Marga
    Jornadas de la Red Española de Compostaje
    p. 1-9
    Presentation's date: 2010-06-01
    Presentation of work at congresses

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  • Demography of Digitaria sanguinalis: effect of the emergence time on survival , reproduction, and biomass

     Gallart Gonzalez-palacio, Montserrat; Mas Serra, Maria Teresa; Verdu Gonzalez, Antonio Maria
    Weed biology and management
    Vol. 10, p. 132-140
    DOI: 10.1111/j.1445-6664.2010.00375.x
    Date of publication: 2010-06
    Journal article

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    MSW facilities of combined biological treatment: anaerobic digestion plus composting  Open access

     Lopez Martinez, Marga; Soliva Torrento, Montserrat; Martinez Farre, Francesc Xavier; Gallart Gonzalez-palacio, Montserrat; Huerta Pujol, Oscar
    Recycling Agricultural, Municipal and Industrial Residues in Agriculture Network
    p. 1-5
    Presentation's date: 2010-09-13
    Presentation of work at congresses

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    Characterization of municipal solid waste composts products produced in Spain  Open access

     Huerta Pujol, Oscar; Soliva Torrento, Montserrat; Martinez Farre, Francesc Xavier; Gallart Gonzalez-palacio, Montserrat; Lopez Martinez, Marga
    Recycling Agricultural, Municipal and Industrial Residues in Agriculture Network
    p. 1-4
    Presentation's date: 2010-09-13
    Presentation of work at congresses

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    Duración de la latencia en semillas de Digitaria sanguinalis recién dispersadas y conservadas en condiciones de laboratorio  Open access

     Gallart Gonzalez-palacio, Montserrat; Verdu Gonzalez, Antonio Maria; Mas Serra, Maria Teresa
    XII Congreso SEMh, XIX Congreso ALAM, II Congreso IBCM
    p. 191-194
    Presentation's date: 2009-11-10
    Presentation of work at congresses

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    Efectos de Ustilago syntherismae sobre una población de Digitaria sanguinalis en un rastrojo de cebada  Open access

     Verdu Gonzalez, Antonio Maria; Gallart Gonzalez-palacio, Montserrat; Mas Serra, Maria Teresa
    XII Congreso SEMh, XIX Congreso ALAM, II Congreso IBCM
    p. 145-148
    Presentation's date: 2009-11-10
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    Cuantificar los efectos que el carbón Ustilago syntherismae tiene sobre poblaciones de Digitaria sanguinalis es un paso previo necesario a cualquier intento de utilizarlo como agente de control biológico, algo que de ser posible supondría una alternativa o complemento al uso de herbicidas y de escardas mecánicas. En este trabajo se presentan los resultados obtenidos en un experimento para conocer algunos aspectos del efecto del hongo sobre el crecimiento y la reproducción de la planta, así como a su distribución espacial en un campo no cultivado en el que variaba la densidad de garranchuelo y la de otras arvenses. Para ello en agosto de 2006 se marcaron 16 cuadrados permanentes de 0.25 m2, que fueron referenciados espacialmente, y al final del ciclo de la planta se realizaron conteos y medidas de biomasa. Un 22 % de las vástagos no produjo ninguna semilla, y además por término medio la biomasa de un vástago con carbón fue significativamente menor que la de los vástagos que no mostraron signos de la enfermedad. Los vástagos con las inflorescencias transformadas en esporas se distribuyeron en el campo de forma más agregada que los vástagos que no mostraron signo de infección. Palabras clave: carbón, distribución espacial, biomasa, producción de semillas.

  • Estudi de la dinàmica poblacional de Digitaria sanguinalis i de l'efecte del fong Ustilago syntherismae Unitat  Open access

     Gallart Gonzalez-palacio, Montserrat
    Department of Agri-Food Engineering and Biotechnology, Universitat Politècnica de Catalunya
    Theses

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    Conèixer la dinàmica poblacional d'espècies arvenses és una informació bàsica per al disseny d'estratègies de control de males herbes eficaces i sostenibles des d'un punt de vista ambiental. La forcadella (Digitaria sanguinalis (L.) Scop.) és una gramínia anual d'estiu àmpliament distribuïda, molt prolífica i amb una elevada capacitat competitiva. Aquesta espècie arvense pot ser parasitada pel carbó sistèmic Ustilago syntherismae (Schweinitz) Peck.L'únic signe extern inequívoc de la malaltia és la producció d'inflorescències amb carbó, la majoria de les quals no produeixen cap llavor.L'objectiu general d'aquesta tesi és l'estudi de la dinàmica poblacional de D. sanguinalis i l'avaluació dels efectes del fong U. syntherismae sobre les poblacions d'aquesta espècie. El treball experimental va consistir principalment en el seguiment, durant dos anys consecutius (2006 i 2007), d'una població de D. sanguinalis que va créixer en condicions naturals en un camp sense cultivar de la finca experimental de Torre Marimon (Caldes de Montbui, Vallès Oriental).Al 2006 i al 2007 es van diferenciar i seguir individus de tres i quatre cohorts (polsos d'emergència), respectivament, des de la seva emergència fins al final del seu cicle anual.La densitat d'emergència de D. sanguinalis va ser quatre vegades superior al 2007 que al 2006 (3674 i 887 pl m-2 respectivament). En ambdós anys, D. sanguinalis va ser l'espècie més abundant, tant en termes de densitat com de biomassa. Al 2006, al final del període de creixement de l'espècie no es van detectar diferències significatives entre la supervivència de les cohorts controlades (88%). En canvi, al 2007 la supervivència va ser diferent segons el moment d'emergència i va variar entre el 25% i el 88%. En els dos anys es van observar efectes significatius de la precipitació incident i de la densitat en la taxa de mortalitat de la població.Les característiques reproductives i la fecunditat dels individus van estar fortament influenciades pel seu moment d'emergència. Els individus que van emergir primer van produir més llavors i van contribuir més a la pluja de llavors que els que van emergir més tard.La producció de llavors de la població es va veure limitada per la incidència de la malaltia produïda pel carbó U. syntherismae. Al 2006, un 21.7% dels individus supervivents al final del cicle anual presentaven inflorescències amb carbó, mentre que al 2007 aquesta xifra va augmentar fins al 61.2%. La majoria de plantes amb signes de la malaltia van ser castrades totalment pel fong, és a dir, totes les seves inflorescències apareixien transformades en espores del carbó i no van produir cap llavor (94.3% al 2006 i 98.0% al 2007). El moment d'emergència dels individus no va limitar la incidència de la malaltia, ja que en totes les cohorts d'ambdós anys es van observar individus amb inflorescències afectades pel carbó. Tampoc es va trobar una relació lineal significativa entre la densitat de població de D. sanguinalis i el percentatge d'individus malalts.La malaltia no només va afectar la producció de llavors, sinó que també es van detectar efectes importants en la morfologia i la biomassa dels individus. En general, el carbó va reduir significativament la biomassa aèria (61.5%), l'alçada de la planta (23.7%) i el número de tiges basals (15.5%) i, en canvi, va incrementar el nombre de nusos (12.9%), ramificacions (52.4%) i inflorescències (16.7%), tant a nivell individual com a nivell de ramet.D'altra banda, també es va estudiar la dormició de les llavors de D. sanguinalis en el moment de la dispersió. La majoria d'espiguetes (unitats de dispersió) eren dorments (>98%) al final del període de creixement de la població estudiada al 2006 i al 2007. Es va observar que aquesta dormició innata era causada principalment per les bractèoles que cobreixen la cariopsi sobretot per la lemma de la flor fèrtil. En general, la pèrdua de la dormició de les llavors va ser molt ràpida (entre 2 i 4 mesos) i es va veure influenciada pel contingut d'aigua del sòl i la profunditat d'enterrament de les llavors.

  • Effects of loose smut on Digitaria sanguinalis population depending on seedling emergence period

     Gallart Gonzalez-palacio, Montserrat; Mas Serra, Maria Teresa; Verdu Gonzalez, Antonio Maria
    Acta oecologica. International journal of ecology
    Vol. 35, num. 3, p. 409-414
    DOI: doi:10.1016/j.actao.2009.01.009
    Date of publication: 2009-06
    Journal article

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  • Effect of a transient thermal flux on the dormancy of Digitaria sanguinalis seeds

     Rubio Esteve, Carlos Miguel; Mas Serra, Maria Teresa; Verdu Gonzalez, Antonio Maria; Gallart Gonzalez-palacio, Montserrat; Ferrer, F; Josa March, Ramon Peñafort
    European Society for Agronomy. Congress
    p. 707-708
    Presentation's date: 2008-09
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  • Dormancy breaking in Digitaria sanguinalis seeds: the role of the caryopsis covering structures

     Gallart Gonzalez-palacio, Montserrat; Verdu Gonzalez, Antonio Maria; Mas Serra, Maria Teresa
    Seed science and technology
    Vol. 36, num. 2, p. 259-270
    Date of publication: 2008-07
    Journal article

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  • L'Emmagatzematge en sec a baixes temperatures com a tractament per mantenir l'estat fisiològic de les llavors de Digitaria sanguinalis en el moment de la dispersió

     Gallart Gonzalez-palacio, Montserrat; Verdu Gonzalez, Antonio Maria; Mas Serra, Maria Teresa
    V Jornada de Doctorat. Tecnologia Agroalimentària i Biotecnologia
    p. 11-14
    Presentation of work at congresses

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  • La dormància de les llavors de Digitaria sanguinalis

     Gallart Gonzalez-palacio, Montserrat
    IV Jornada de Doctorat. Programa Biotecnologia Agroalimentària i Sostenibilitat
    Presentation's date: 2007-07-03
    Presentation of work at congresses

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  • Seed dormancy in Digitaria sanguinalis: the role of the spifelet bracts

     Gallart Gonzalez-palacio, Montserrat
    14th European Weed Research Symposium
    Presentation's date: 2007-06-17
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  • Tratamientos eficaces para romper la latencia de la semillas de Digitaria sanguinalis

     Gallart Gonzalez-palacio, Montserrat
    XI Congreso SEMh, la malherbología en los nuevos sistemas de producción agraria
    Presentation's date: 2007-11-08
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  • Capacidad de colonización de Tribulus terrestris: del margen al interior del campo de cultivo

     Gallart Gonzalez-palacio, Montserrat
    XI Congreso SEMh, la malherbología en los nuevos sistemas de producción agraria
    Presentation's date: 2007-11-08
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  • Efecte del pretractament de la mostra sobre el contingut final de metalls pesants en el compost

     Huerta Pujol, Oscar; Lopez Martinez, Marga; Gallart Gonzalez-palacio, Montserrat
    IV Jornada de Doctorat. Programa Biotecnologia Agroalimentària i Sostenibilitat
    p. 29-32
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  • Influencia del tipo de laboreo en el banco de semillas en los primeros 8 cm, en cultivos herbáceos de secano

     Gallart Gonzalez-palacio, Montserrat
    XI Congreso SEMh, la malherbología en los nuevos sistemas de producción agraria
    Presentation's date: 2007-11-08
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  • La dormància de les llavors de Digitaria sanguinalis

     Gallart Gonzalez-palacio, Montserrat; Verdu Gonzalez, Antonio Maria; Mas Serra, Maria Teresa
    IV Jornada de Doctorat. Programa Biotecnologia Agroalimentària i Sostenibilitat
    p. 21-23
    Presentation of work at congresses

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  • Inoculació de llavors de Digitaria sanguinalis amb el carbó Ustilago syntherismae

     Gallart Gonzalez-palacio, Montserrat; Verdu Gonzalez, Antonio Maria; Mas Serra, Maria Teresa
    V Congrés de la ICEA (Institució Catalana d?Estudis Agraris)
    p. 49
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  • Seed dormancy in Digitaria sanguinalis: the role of the spifelet bracts

     Gallart Gonzalez-palacio, Montserrat; Verdu Gonzalez, Antonio Maria; Mas Serra, Maria Teresa
    14th European Weed Research Symposium
    p. 189
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  • Tratamientos eficaces para romper la latencia de la semillas de Digitaria sanguinalis

     Gallart Gonzalez-palacio, Montserrat; Verdu Gonzalez, Antonio Maria; Mas Serra, Maria Teresa
    XI Congreso SEMh, la malherbología en los nuevos sistemas de producción agraria
    p. 35-38
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  • Estudi de les bases biològiques i ecològiques de la interacció Digitaria sanguinalis - Ustilago syntherismae

     Gallart Gonzalez-palacio, Montserrat
    III Jornada de Doctorat. Biotecnologia Agroalimentària i Sostenibilitat
    Presentation's date: 2006-07-06
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  • Estudi de les bases biològiques i ecològiques de la interacció Digitaria sanguinalis - Ustilago syntherismae

     Gallart Gonzalez-palacio, Montserrat
    III Jornada de Doctorat. Biotecnologia Agroalimentària i Sostenibilitat
    p. 79-82
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  • Survivorship of Polygonum aviculare as influenced by soil tillage in a winter wheat crop

     Gallart Gonzalez-palacio, Montserrat; Mas Serra, Maria Teresa; Verdu Gonzalez, Antonio Maria
    12th European Weed Research Society Symposium
    p. 30-31
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