Fig. 2. Relationship between height and diameter and level of competition for selfed and outcrossed Pericopsis elata saplings at different ages.
a, b, c annual height and (d, e, f) diameter increment and local competition, C1/2, for selfed and outcrossed saplings aged 2 (a, d), 3 (b, e) or 4 (c, f) years old (more specifically, growth from 5 to 17, 17 to 29, or 29 to 41 months after transplantation, respectively). The points are measured data. The shaded areas correspond to the 95% confidence interval of a spline function. Estimated models parameters following Eq. (6) and significant relationships (*p < 0.05; **p < 0.01; ***p < 0.001; ns = not significant) are shown on each panel.