Fig. 4.

Visual representation of the results at harvest of four simulations of fruit growth in a simple tree canopy performed with a heterogeneous spatial distribution of leaf incident PAR and different autonomous units: (A) no autonomy, (B) limbs, (C) branches and (D) branchlets. Background colours represent the percentage of light incident with respect to the PAR above the canopy, ranging from white (100%) to dark grey (20%). Each value represents the total fruit dry weight per shoot (g), i.e. two racemes with four fruits each. Red internodes are the base of an autonomy unit. Dark green leaves are mature leaves initially present in the canopy. Light green leaves are leaves growing in the present season.