Mostrando recursos 161 - 180 de 3.039

  1. English Translation of the Executive Summary of the full study by

    Medio São Francisco; Guiomar Inez; Alicia Ruiz; Olalde Centro; Ciências Agrárias Ambientais; Cirlene Jeane; Santos Santos; Faculdade Geografia; Ely Estrela Campusv; Laura Adriano; Chamo Projeto Geografar; Maria Lourdes; Costa Souza; Projeto Geografar Ufba; Tiago Rodrigues; Geociências Ufba
    University of Greenwich, a charity and company limited by guarantee, registered in England (reg no. 986729).

  2. 4 Departamento de Ciências Agrárias e Ambientais- Universidade Estadual de Santa Cruz. 5 Departamento de Zootecnia- Universidade Federal do Ceará.

    Thiago Carvalho Da Silva; Edson Mauro Santos; José Augusto; Gomes Azevedo; Loiola Edvan; Re Fern; Es Perazzo; Ricardo Martins; Araújo Pinho; José Avelino; Santos Rodrigues; Divan Soares Da Silva; Embrapa Milho E Sorgo
    ABSTRACT- The objective of this study was to evaluate the agronomic divergence of 25 sorghum hybrids (Sorghum bicolor L. Moench) in the semiarid region of Paraiba. A randomized block design with three replications was used for evaluation

  3. Revista de la Facultad de Agronomía y Veterinaria | Año II | Número XIII

    Revista de la Facultad de Agronomía y Veterinaria
    Sumario: Obstetricia | Desiderio Bernier Saneamiento de tierras. El drenage | A. Grimbert Revista clínica | Julio Lejeune Inspección de carnes | Félix Mezzadrelli Necrología. Carlos Lambert | Desiderio Bernier Moricultura | Domingo Tamaro Evolución ganadera | Pedro D. Pumará Informaciones

  4. Moricultura

    Tamaro, Domingo
    Se tratan en el artículo los siguientes temas: - Ingerto de corona - El ingerto de canutillo - Cuidados de los ingertos - La poda. Observaciones generales - La poda racional

  5. Necrología

    Bernier, Desiderio G. J.
    Una dolorosa noticia acaba de llegarnos de Bélgica: Carlos Lambert, ex-profesor de la Escuela Agronómica y Veterinaria de Santa Catalina, ha muerto en Gante, el 2 de Noviembre de 1895.

  6. Influencia de Drechslera tritici-repentis, sobre la removilización y absorción post-antesis de nitrógeno en distintos cultivares de trigo

    Bellocq, Juan Francisco
    El trigo pan (Triticum aestivum (L) Thell.) es un cereal básico para la alimentación humana. El crecimiento poblacional conlleva un aumento en la demanda de este cereal de ahí la necesidad de aumentar la producción mundial elevando los rendimientos promedios. La mancha amarilla causada por el hongo [Pyrenophora tritici-repentis (Died.) Drechs., anamorfo Drechslera tritici-repentis) (Died.) Shoem.] es una de las enfermedades foliares más importantes del cultivo debido a las mermas en el rendimiento que produce. El objetivo del trabajo fue evaluar el efecto de la mancha amarilla sobre la removilización y absorción de nitrógeno post-antesis en diez cultivares de trigo....

  7. Análisis del uso de agroquímicos asociado a las actividades agropecuarias de la provincia de Buenos Aires

    Sarandón, Santiago Javier
    Teniendo en cuenta la importancia de las actividades agropecuarias para el ambiente, es fundamental realizar un relevamiento de la utilización de los agroquímicos y hacer un seguimiento profundo de los impactos que la intensificación de la agricultura está produciendo sobre extensas áreas de la Provincia de Buenos Aires. Teniendo en cuenta que la Defensoría del Pueblo de la Provincia de Buenos Aires debe garantizar el derecho a un ambiente sano, al agua potable, y a la salud, derechos humanos básicos inherentes a la dignidad e integridad del ser humano, es necesario mejorar el conocimiento sobre el impacto que diferentes prácticas...

  8. Escuela agroecológica “Semilla en la Tierra”, una alternativa pedagógica para la construcción de paz con justicia social

    Cancino, J. M.; Cantor, M. I.
    En medio de un país, con territorio mayoritariamente rural en el cual las comunidades se encuentran sumidas en la desigualdad y deplorables condiciones de vida, el Colectivo de Integración Rural (CIR) de la Universidad Nacional de Colombia (Sede Bogotá), crea, al interior de la Facultad de Ciencias Agrarias, la escuela de agroecología: “Semilla en la tierra”. Esta tiene como objetivo discutir sobre las alternativas que permitan mejorar las condiciones de vida de estas comunidades, a traves de propuestas en torno a la agroecología. Este espacio se complementa con experiencias de trabajo organizativo con organizaciones campesinas y talleres desarrollados con comunidades...

  9. Convergence of soil nitrogen isotopes across global climate gradients

    Craine, Joseph M.; Division of Biology, Kansas State University; Elmore, Andrew J.; Appalachian Laboratory, University of Maryland Center for Environmental Science; Koba, Keisuke; Institute of Agriculture, Tokyo University of Agriculture and Technology; Kranabetter, J. Marty; British Columbia Ministry of Forests, Lands and Natural Resource Operations; Mack, Michelle C.; Department of Biology, University of Florida; Marin-Spiotta, Erika; Department of Geography, University of Wisconsin; Mayor, Jordan R.; Department of Forest Ecology & Management, Swedish University of Agricultural Sciences; McLauchlan, Kendra K.; Department of Geography, Kansas State University; Michelsen, Anders; Department of Biology, University of Copenhagen; Nardoto, Gabriela B.; Faculdade UnB Planaltina, Universidade de Brasília; Oliveira, Rafael S.; Departamento de Biologia Vegetal, Instituto de Biologia, Universidade Estadual de Campinas; Perakis, Steven S.; Forest and Rangeland Ecosystem Science Center, US Geological Survey; Wang, Lixin; Department of Earth Sciences, Indiana University-Purdue University; Peri, Pablo L.; Universidad Nacional de la Patagonia Austral-INTA-CONICET; Quesada, Carlos A.; Coordenação de Dinâmica Ambiental, Instituto Nacional de Pesquisas da Amazonia; Richter, Andreas; Department fur Mikrobiologie und Okosystemforschung, Fakultat fur Lebenswissenschaften, University of Vienna; Department fur Mikrobiologie und Okosystemforschung, Fakultat fur Lebenswissenschaften, University of Vienna; Schipper, Louis A.; Environmental Research Institute, University of Waikato; Stevenson, Bryan A.; Landcare Research; Turner, Benjamin L.; Smithsonian Tropical Research Institute; Viani, Ricardo A. G.; DBPVA, Centro de Ciências Agrárias, Universidade Federal de São Carlos; Wanek, Wolfgang; Department fur Mikrobiologie und Okosystemforschung, Fakultat fur Lebenswissenschaften, University of Vienna; Department fur Mikrobiologie und Okosystemforschung, Fakultat fur Lebenswissenschaften, University of Vienna; Zeller, Bernd; Biogéochimie des Ecosystèmes Forestiers, INRA Nancy; Augusto, Laurent; University of Vienna; University of Vienna; Baisden, W. Troy; National Isotope Centre, GNS Science, New Zealand; Brookshire, E. N. J.; Department of Land Resources and Environmental Sciences, Montana State University; Cramer, Michael D.; Department of Biological Sciences, University of Cape Town; Hasselquist, Niles J.; Forest Ecology and Management, Swedish University of Agricultural Sciences (SLU); Hobbie, Erik A.; Earth Systems Research Center, University of New Hampshire; Kahmen, Ansgar; Departement of Environmental Sciences - Botany, Basel
    Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15N:14N ratio of soil organic matter across climate gradients provide key insights into understanding global patterns of N cycling. In synthesizing data from over 6000 soil samples, we show strong global relationships among soil N isotopes, mean annual temperature (MAT), mean annual precipitation (MAP), and the concentrations of organic carbon and clay in soil. In both hot ecosystems...

  10. The Eukaryotic Flagellum Makes the Day: Novel and Unforeseen Roles Uncovered After Post-Genomics and Proteomics Data

    Michely C. Diniz; Ana Carolina; L. Pacheco; Kaio M. Farias; Diana M. De Oliveira; Vale São Francisco-univasf; Campi Ciências; Agrárias-rodovia Br
    Abstract: This review will summarize and discuss the current biological understanding of the motile eukaryotic flagel-lum, as posed out by recent advances enabled by post-genomics and proteomics approaches. The organelle, which is cru-cial for motility, survival, differentiation, reproduction, division and feeding, among other activities, of many eukaryotes, is a great example of a natural nanomachine assembled mostly by proteins (around 350-650 of them) that have been con-served throughout eukaryotic evolution. Flagellar proteins are discussed in terms of their arrangement on to the axoneme, the canonical “9+2 ” microtubule pattern, and also motor and sensorial elements that have been detected by...

  11. Comercialización y producción; de las familias productoras a las familias consumidoras

    Bravo, María Laura; Cremaschi, Almendra
    Durante los últimos 25 años el Cinturón Hortícola Platense, Buenos Aires, Argentina, ha atravesado significativos cambios en las formas de producción, la estructura de los mercados y la concentración de la tierra. Estas transformaciones significaron un aumento de la dependencia de insumos, reducción del poder de negociación de las familias productoras frente a los últimos eslabones de la cadena y dificultades para el acceso a la tierra. Así, la producción familiar se ha visto vulnerable ante un sector cada vez más polarizado. En este contexto, a partir de un proyecto de la Facultad de Ciencias Agrarias y Forestales (UNLP), surgió...

  12. for

    Juliana Morini; Gliciane Micaele; Borges Silva; João Ricardo; Bachega Feijó; Rodrigo Gazaffi; Jéssica Fern; A Marçal; Sérgio Augusto; Morais Carbonell; Alisson Fern; Maria Imaculada Zucchi; Antonio Augusto; Franco Garcia; Luciana Lasry Benchimol-reis; Centro De Ciências Agrárias
    a common bean core collection suitable

  13. Universidade Federal do Espírito Santo, Centro de Ciências Agrárias

    Wilmer Edgard; Luera Peña; Pilar Rodriguez De Massaguer; Luciano Quintão Teixeira
    The nisin effect on thermal death of Alicyclobacillus acidoterrestris CRA 7152 spores in concentrated orange juice (64°Brix) was studied. Concentrations of 0, 50, 75 and 100 IU of nisin/ml juice, at temperatures of 92, 95, 98 and 102ºC were evaluated. The quadratic polynomial model was used to analyze the effects of the factors and their interaction. Verification of surviving spores was carried out through plating in K medium (pH 3.7). The results showed that the D values without nisin addition were 25.5, 12.9, 6.1 and 2.3 min for 92, 95, 98 and 102ºC respectively. With addition of nisin into the...

  14. Edited by:

    Ludmilla B. Zavarez; Yuri T. Utsunomiya; Adriana S. Carmo; Haroldo H. R. Neves; Roberto Carvalheiro; Ana M. Pérez O’brien; Ino Curik; John B. Cole; Curtis P. Van Tassell; Tad S. Sonstegard; Johann Sölkner; José F. Garcia; Paolo Ajmone Marsan; Cattolica Del S. Cuore; Nicolo Pietro; Paolo Macciotta; José F. Garcia; Laboratório De
    Assessment of autozygosity in Nellore cows (Bos indicus)

  15. Edited by:

    Jesús Álvarez; José L. Acebes; José L. Acebes; Área De Fisiología; Ciencias Agrarias; Facultad De
    doi: 10.3389/fpls.2014.00303 Fourier transform mid infrared spectroscopy applications for monitoring the structural plasticity of plant cell walls

  16. Detection of Salmonella spp, Salmonella Enteritidis and Typhimurium in naturally infected broiler chickens by a multiplex PCR-based assay

    F. G. Paião; L. G. A. Arisitides; L. S. Murate; G. T. Vilas-bôas; L. A. Vilas-boas; M. Shimokomaki; Centro De Ciências Agrárias
    The presence of Salmonella in the intestinal tract, on the chickens skin and among their feathers, may cause carcasses contamination during slaughtering and processing and possibly it is responsible by the introduction of this microorganism in the slaughterhouses. A rapid method to identify and moni-tor Salmonella and their sorovars in farm is becoming necessary. A pre-enriched multiplex polymer-ase chain reaction (m-PCR) assay employing specific primers was developed and used to detect Salmonella at the genus level and to identify the Salmonella enterica serovar Enteritidis (S. Enteritidis) and Salmonella enterica serovar Typhimurium (S. Typhimurium) in broiler chicken swab samples. The method...

  17. *Correspondence:

    Sara Rocha; Paulo Monjardino; Duarte Mendonça; Artur Da Câmara Machado; Rui Fern; Paula Sampaio; Roberto Salema; Mark Talbot; Csiro Plant Industry; Paulo Monjardino; Ciências Agrárias; Biotecnologia E Bioengenharia
    doi: 10.3389/fpls.2014.00102 Lignification of developing maize (Zea mays L.) endosperm transfer cells and starchy endosperm cells

  18. Departamento de Desarrollo Rural- Facultad de Ciencias Agrarias y Forestales- UNLP

    Otero Jeremías; Patricio Vértiz; Juan José Garat; Irene Velarde; Jeremías Otero; Equipo Investigación; Tag Lugar; Innova Unlp; La Plata
    Abstract: This paper examines the Localized Agro-alimentary Systems approach as an alternative for the study and development of rural territories, where it is recognized as a resource in this sense, culture and local economy associated with a typical agri-food product. This proposal is presented in a context where intensifies delocalization of production activities.

  19. Sorghum growth in soil treated with sewage sludge from the textile industry

    W. J. Melo; G. M. P. Melo; V. P. Melo; M. M. Yada; R. S. Carlos; E. G. Silva; Ciências Agrárias
    Sewage sludge (SS), a residue from wastewater treatment can be a hazard to the environment because it may contain trace elements and other toxic substances. But it is also rich in organic matter and plant nutrients so that an attractive destination for the residue is its use in agriculture as fertilizer and soil conditioner. The aim of this work was to evaluate the effect of doses of SS from the textile industry on sorghum plant growth. The experiment was carried out under greenhouse conditions using typic Haplorthox soil occurring at Jaboticabal, SP, Brazil. The experiment design was totally randomized with...

  20. Desenvolvimento de um aditivo natural à base de catequina: otimização da extração e estabilização a partir de frutos de Arbutus unedo L.

    Albuquerque, Bianca Rodrigues de
    The common Mediterranean ornamental strawberry-tree (Arbutus unedo L.) produces an edible reddish sweet berry that is found to be bland and tasteless unless it is consumed overripe, otherwise it is discarded or used as basic agricultural sub residue. The bioactive properties of this fruit have been reported and related with phenolic compounds, mainly flavan-3-ols, such as catechin and procyanidins, which has opened the opportunity to exploit their extraction from alternative sources.The common Mediterranean ornamental strawberry-tree (Arbutus unedo L.) produces an edible reddish sweet berry that is found to be bland and tasteless unless it is consumed overripe, otherwise it is...

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