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Un état de coexistence du soja transgénique et conventionnel au Paraná, Brésil

  • Michel Fok

    ()

    (SCA - Systemes de cultures annuelles - CIRAD : UPR102)

  • Jean-Louis Le Guerroué

    ()

    (Faculdade Planatina - Universidade de Brasilia)

  • Pasquale Lubello

    ()

    (CREDAL - Centre de recherche et de documentation de l'Amérique latine - CNRS : UMR7169 - Université de la Sorbonne nouvelle - Paris III)

Au Brésil, la production de soja a progressé avec une croissance annuelle de 7,2 % depuis 1996. La culture des variétés de soja transgéniques tolérantes à l'herbicide glyphosate a concouru à cette importante progression. Après avoir présenté le contexte de production du soja au Brésil, l'article présente les résultats d'une enquête sur l'utilisation du soja transgénique, se rapportant à la campagne 2007/2008 dans le Paraná, l'un des principaux États brésiliens producteurs de soja. Cette enquête indique que, selon les exploitations agricoles, l'adoption du soja transgénique peut être nulle, partielle ou totale. L'utilisation du soja transgénique en fonction de l'état d'infestation des parcelles par les mauvaises herbes est une raison de la production simultanée des deux types de soja dans une même exploitation. La poursuite de cette coexistence dépend notamment de l'évolution des royalties appliquées au soja transgénique et des dispositions prises pour assurer la pureté des semences de soja conventionnel.

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Paper provided by HAL in its series Post-Print with number halshs-00540820.

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Date of creation: Nov 2010
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Publication status: Published, Economie Rurale, 2010, 320, 53-68
Handle: RePEc:hal:journl:halshs-00540820
Note: View the original document on HAL open archive server: http://halshs.archives-ouvertes.fr/halshs-00540820/en/
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  1. S. Narayan, 2009. "India," Chapters, in: The Political Economy of Trade Reform in Emerging Markets, chapter 7 Edward Elgar.
  2. Patricio Mendez Del Villar & Carlos Magri Ferreira & Juliana Galvarros Bueno Lobo Ribeiro & Josema Xavier De Madeiros & Pasquale Lubello & Jean-Louis Le Guerroué & Michel Fok, 2007. "Private governance in royalty collection: Effectiveness and limitations in tracing GM soybean in Brazil," Post-Print halshs-00176585, HAL.
  3. Michel Fok & WeiLi Liang & GuiYan Wang & YuHong Wu, 2005. "Diffusion du coton génétiquement modifié en Chine : leçons sur les facteurs et les limites d'un succès," Working Papers 156900, Institut National de la Recherche Agronomique, France.
  4. Bhavani Shankar & Colin Thirtle, 2005. "Pesticide Productivity and Transgenic Cotton Technology: The South African Smallholder Case," Journal of Agricultural Economics, Wiley Blackwell, vol. 56(1), pages 97-116.
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