Comparison of model adjustment to data for the dry weight of photosynthetic organs (A, D), internodes (B, E) and seeds (C, F) for the eight sampling dates of the Pollen 2007 field experiment. Each point represents an individual organ (or six pods for seeds and envelopes) for the main stem (A–C), while organs have been pooled by ramification for the ramifications (D–F). Note that, on the main stem, phytomers 1–29 correspond to leaves and stem internodes, while phytomers 30–47 correspond to pod envelopes and raceme internodes. Lines are model simulations; points are experimental data for the median plant of each sampling date; each colour stands for a sampling date, as indicated.