Table 1. Photosynthesis parameters in leaves of P. amurensis Maxim and P. opulifolius “Diabolo” under different light intensities.

Parameters	P. amurensis	P. opulifolius	P. amurensis under low light	P. opulifolius under low light
AQY	0.056	0.052	0.034	0.044
Pmax (μmol · m−2 · s−1)	12.53	10.72	4.76	6.65
LCP (μmol · m−2 · s−1)	25.89	27.88	20.07	20.00
LSP (μmol · m−2 · s−1)	538.67	512.35	351.03	415.52