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Showing items 1 through 9 of 100.
  1. Library Resource
    Policy Papers & Briefs
    June, 2007
    Spain, Americas, South America

    Nineteen microsatellite markers were used to fingerprint a set of 19 potato landraces from the island of La Palma (Canary Islands). These landraces represent relicts of early introductions from South America, although most are commonly cultivated by local farmers. The SSR primers detected 62 polymorphisms, 13 of which were present in all landraces. Several accession- and group-specific markers were detected. Jaccard similarity coefficients were estimated from the molecular data and UPGMA cluster analysis was performed. Some cultivars with related common names clustered together.

  2. Library Resource
    Policy Papers & Briefs
    September, 2007
    France, Belgium, Spain, Germany, Denmark, Italy, Austria, Netherlands, Czech Republic

    The effects of subsidies on the development of organic farming (OF) in the Czech Republic and in some selected EU countries are analysed in this article. The level of subsidies for OF in the Czech Republic is continuously increasing. In 1998, the total amount of subsidies was 48 million CZK, whereas in 2004, it increased to nearly 277 million CZK. The increase of subsidies led to an increase in the number of organic farms as well as the area under OF.

  3. Library Resource
    Journal Articles & Books
    December, 2007
    Europe

    In Europe, grassland is one of the dominant forms of land use. Within 20 years, the area of permanent grasslands and pastures in Western Europe has declined by 12%. Semi-natural grasslands are often hot spots of biodiversity and are threatened both by intensive farming and by the abandonment of farmland in marginal areas. In this review, we show that biodiversity, climate change, C sequestration and farming systems issues are highly interconnected in grassland ecosystems.

  4. Library Resource
    Conference Papers & Reports
    December, 2007
    Spain

    La dehesa es un ecosistema agroforestal único que aúna un óptimo rendimiento económico con una menor incidencia en el medio. En la Península Ibérica hay unas 500.000 hectáreas de dehesas concentradas en Andalucía, Castilla y León, Extremadura, Castilla La Mancha y Madrid. Las razas autóctonas son las que, por su rusticidad y adaptación, mejor aprovechan y conservan la dehesa.

  5. Library Resource
    Journal Articles & Books
    December, 2007
    Spain

    Changes of vegetal cover in the Aragonese western Pyrenees are shown throughout the last 50 years. The evolution is characterized by a generalised revegetation process with an advance of shrubs and forests. The medium and low slopes show the most intense revegetation as a consequence of the agricultural abandonment and the decrease of the livestock pressure. Nevertheless, few vegetation changes are recorded in cultivated lands and the pastures located above timberline.

  6. Library Resource
    Conference Papers & Reports
    December, 2007
    Spain

    La raza Castellana se halla distribuida por distintas áreas de la Comunidad de Castilla y León, si bien la mayor parte de su censo se encuentra en comarcas del oeste de la provincia de Zamora. Raza de doble actitud carnicera y lechera, su explotación se halla orientada mayoritariamente a la producción de carne, si bien los escasos rebaños inscritos en el libro genealógico se hallan dedicados a la producción lechera.

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