Fig. 6.

The responses of leaf CO₂ assimilation (A) to intercellular [CO₂] (C_i) at different points in time after the beginning of photosynthetic induction for IR64-21 and AUS 278. Times after induction were: 60 s (filled circles), 180 s (open squares), 300 s (open circles), 360 s (filled squares), and 700 s (filled triangles) from the start of induction. The operating point of each curve at 400 µmol mol^–1 atmospheric [CO₂] (C_a) is indicated with a black arrow. Each point is the mean (±SE) of four plants of each rice accession.