Fig. 1.

Leaf morphology and growth dynamics during the heteroblastic process in P. edulis. (A) Overview of heteroblastic process during the time-course of leaf development from juvenile to adult in the vegetative phase. Left to right, from young monolobed to adult fully expanded trilobed leaves. Red line indicates leaves at intermediate stage, having both young and adult traits (red arrows). Cot, cotyledons. (B) Length and (C) width of the leaves were described by the sigmoidal function y = A/(1 + exp {−[(x − x0)/b]}). Values are presented as mean ± s.e. of at least five individual determinations.