0000000001005643
AUTHOR
A. Fargue
Evaluation and use of a spatio-temporal model of cropping system effects on gene escape from transgenic oilseed rape varieties. Example of the GENESYS model applied to three co-existing herbicide tolerance transgenes
International audience
Modelling the effect of genotype on gene flow between rapeseed volunteers and crops
*UMR d'Agronomie, Bibliothèque, 78850 Thiverval-Grignon Diffusion du document : UMR d'Agronomie, Bibliothèque, 78850 Thiverval-Grignon; International audience
Using the GeneSys model quantifying the effect of cropping systems on gene flow from GM rape varieties to rape volunteers for designing and evaluating scenarios for co-existence of GM, non-GM and organic crops
International audience
Modelling the effect of genotype on gene flow between rapeseed volunteers and crops. Integration into the GeneSys model
International audience
Modélisation des effets des systèmes de culture sur les flux géniques entre plantes cultivées et repousses : cas du colza et de la betterave
National audience
Effets des systèmes de culture et des génotypes sur les contaminations génétiques des récoltes de colza
National audience
Modélisation des effets des systèmes de culture sur les flux géniques hors de nouvelles variétés de colza vers les repousses. Intégration et évaluation des effets variétaux
National audience
Contamination of rapeseed harvest by volunteers of other varieties : a study of intergenotypic competition
Rapeseed volunteers in rapeseed crops can cause contamination in harvest through pollen and seeds. The aim of the study was to predict pollen and seed production by volunteers in winter rapeseed crops according to the genotypes of the crop and the volunteers. Firstly an experimental analysis of intraspecific competition was carried out in 2000 and 2001 on two and six genotypes, respectively. The main competition period begins with vegetation onset and affects pollen and seed production of the volunteers. Relations between density, height, yield and number of flowers were developed based on results from experiments and literature. Knowing the densities and heights of volunteers and crop on t…
Introduction of genotypic effects into Genesys-Rape : the example of height and male sterility
Abstract The aim of this study was to introduce effects of rape genotypes on gene flow between rape populations into the existing GeneSys - Rape model and to simulate the influence of existing rapeseed cultivars on gene flow between rapeseed populations in time and in space. The GeneSys - Rape input variables are the regional field pattern, crop successions, cultivation techniques and genotype of cropped cultivars. The main output variables are, for each year and plot, the number of individuals per square meter and the genotype proportions in the harvest. Results comprised: (1) sensitivity analyses of the model to cultivar characteristics, which showed the importance of pollen emission on g…
GENESYS: Modelling the influence of cropping systems and varieties on transgenic rapeseed volunteers' dispersal
International audience