Table 1.

Photosynthesis and A/C_i curve parameters for LD and SD plants

Parameters	Unit	LD	SD	Significance
Photosynthesis
A	µmol m−2 s−1	14.9 ± 0.7	18.1 ± 0.1	****	10
g	mol m−2 s−1	0.25 ± 0.03	0.31 ± 0.07	*	10
Ci	µL L−1	282 ± 15	281 ± 26	-	10
δ13C	‰	−25.1 ± 0.2	−29.9 ± 0.2	***	5
A/Ci analysis
V cmax	µmol m−2 s−1	46.1 ± 5.2	46.2 ± 1.7	-	4
J	µmol m−2 s−1	91.2 ± 4.6	86.3 ± 4.9	-	4
TPU	µmol m−2 s−1	4.9 ± 0.6	5.3 ± 0.4	-	4
RL	µmol m−2 s−1	1.16a ± 0.53	0.15 ± 0.17	*	4
gm	µmol m−2 s−1 Pa−1	14.3 ± 12.8	100b ± 0	-	4
αG	Unitless	0.02 ± 0.03	0.04 ± 0.04	-	4
αS	Unitless	0.52a ± 0.22	0.17 ± 0.09	*	4

Data are averages ± Sd. This is a subset of data available in Supplemental Table S1. Significant differences between LD and SD are marked with asterisks (Student's 2-tailed t-test, *P ≤ 0.05, **P ≤ 0.01, ***P ≤ 0.001, and ****P ≤ 0.0001).

^aOne outlier sample was not included in the analysis.

^bThe value of 100 is the limit set in the fitting routine and indicates that g_m was too high to accurately measure.