The importance of branching and branches characteristics on oilseed rape genotype x nitrogen interactions

Abstract

actes sur CDROMInternational audienceClassical yield components analysis can be highlighted for winter oilseed rape by an architectural analysis of morphology and morphogenesis during the reproductive phase. For two conventional genotypes (Aviso and Montego) cultivated under usual agronomic practices and two nitrogen availability levels, the differences observed in grain yield mainly rely on branching and branches characteristics. The analyse of the dynamics of branching, pod setting and grain growth allows to decipher the different processes involved and to precise their dependence on genotype