Table 1. Photosynthetic parameters and pigment contents in leaves.

	Photosynthetic parameter	Leaf pigment content (mg/g fresh leaf)
	Y(CEF)/Y(II)	Chl a	Chl b	Chl a+b	Chl a/b
Control	1.075±0.005	0.683±0.002	0.406±0.019	1.089±0.020	1.684
Dark-treated	3.760±0.012*	0.600±0.003*	0.487±0.018*	1.087±0.017	1.338*

The photosynthetic parameter and leaf pigments were quantified. Mean values ± SD are shown. Chl a, chlorophyll a; Chl b, chlorophyll b.

* Value is significantly different from the respective control leaves (t-test value p<0.05).