Aspects génétiques de l'amélioration des arbres forestiers

arbre forestier bosques chromosome chromosomes citologia cromosomas cytologie cytology ensayo especies fitomejoramiento forest trees forests genetica genetics hybridation hybridization introduced varieties introduction de plantes mutation pepiniere plant breeding plant introduction plant nurseries plantation planting poliploidia pollination pollinisation polyploidie polyploidy selection silvicultura silviculture species sylviculture testage testing variedades naturalizadas vegetative propagation viveros