Fig. 1. Diurnal and seasonal changes in the rate of net photosynthesis (A) and stomatal conductance (gs) between ASP-69 (•) and ASP-03 ({circ}). Results are means of six replicates ± SE. Significant differences between ASP-69 and ASP-03 are indicated as *, P < 0.05; **, P < 0.01; ***, P < 0.001.