Fig. 3.

In situ potential carbon gain estimated by Y-plant as a function of specific leaf area (A), above-ground leaf area ratio (B) and light-interception efficiency (C). Values of r² and P are given for significant and borderline regressions. Data are the mean ± s.e. for each species. The means were calculated by weighing the relative contribution of orthotropic and plagiotropic shoots to the foliage of each species. For species see Fig. 2D legend.