Abstract

The authors constructed an algorithm that relates leaf contour to the ratio between the two parts of the leaf using the function θ’=nθm, wherem is the allometric exponent. Using this model, it is possible to simulate the contour of symmetrical or asymmetrical leaves. The authors hypothesize that the portion of the leaf contour that agrees with the simulation is linked to a constraint imposed by the initial asymmetry of the leaf primordium. The final shape of the leaf results more from a summation of cumulative processes through time than from a single process. In the analysis of foliar allometry, it is important to take into consideration the different phases of leaf development, since the nature of the allometric constants may change from one phase to the next, even though their numerical value may remain the same.