Fig. 5

Simulation of a plant following the Rauh model. The Rauh model has a rhythmic growth. Growth units are preformed and show acrotony. The size of the GUs depends on physiological age. The physiological age of axillary branches increases along the growth unit from top to bottom. Each growth unit has its extension followed by a rest period until the end of the year. a The chronological mode shows the alternation of growth and rest periods of the meristems; b the topological mode shows the resulting stochastic topological structure