Mango tree is characterised by rhythmic growth and terminal flowering. Therefore, flowering depends on, and in turn influences, vegetative growth. Close relationships between reproductive and vegetative developments are then suspected and should be integrated in a structural-functional model of mango tree. In relation with this objective, we investigated on four mango cultivars the effect of growth unit (GU) position (apical vs. lateral; Fig. 1) on some morphological characteristics and functioning traits (branching pattern, flowering and fruiting probabilities).