Between the first (74 and 61 DAP for first and second planting, respectively) and the last
measurement (112 and 99 DAP for first and second planting), photosynthesis declined
rapidly, especially following the second planting (Fig. 1). The mean maximum photosynthetic
rate (recorded at the first measurement) was 14.6 and 17.0 mmol CO2 m2 s1 for
the first and second planting date, respectively.