Fig. 1. Relationship between leaf assimilation rate measured at 2000 µmol m^-2 s^-1 (C_Amax) and specific leaf nitrogen (SLN) of individual leaves for (a) Exp. P1 sown 13 Oct. 1999, (b) Exp. P2 sown 28 Oct. 2000 and (c) with both experiments combined. For comparison, the fitted curve of Reddy et al. (1997) is also presented in (c).