Table 2. Effects of different N supplies on the steady-state photosynthetic rate under saturating irradiance (A _sat), day respiration (R _d), light compensation point (Q _lcp), apparent quantum yield (Φ), maximum Rubisco carboxylation capacity (V _cmax), maximum electron transport capacity (J _max), and carboxylation efficiency (CE).

Treatments	Asat (μmol m−2 s−1)	Rd (μmol m−2 s−1)	Qlcp (μmol m−2 s−1)	Φ	Vcmax (μmol m−2 s−1)	Jmax (μmol m−2 s−1)	CE
High N	33.35 ± 1.06 a	0.422 ± 0.075 a	7.81 ± 0.99 a	0.054 ± 0.003 a	110 ± 4 a	218 ± 6 a	0.159 ± 0.018 a
Low N	22.68 ± 0.45 b	0.201 ± 0.089 b	4.42 ± 1.92 b	0.045 ± 0.002 b	77 ± 6 b	147 ± 12 b	0.102 ± 0.004 b

Note: Data are presented as means ± SD with three replications; data followed by different letters are significant at the P < 0.05 level.