Table 3. Changes in the photosynthetic pigment contents in leaves of 2-year old seedlings of O. insularis under four different light intensities.

Relative light intensity (%)	10	20	55	100
Chlorophyll a (μg/cm2)	15.43±0.07c	18.05±0.02b	32.60±0.02a	14.55±0.03d
Chlorophyll b (μg/cm2)	6.96±0.03c	7.10±0.06b	12.72±0.01a	6.39±0.02d
Total chlorophyll (μg/cm2)	22.38±0.09c	25.14±0.08b	45.31±0.01a	20.93±0.04d
Carotenoid (μg/cm2)	3.87±0.03c	4.59±0.03b	8.23±0.04a	4.65±0.03b
Chlorophyll a/b	2.22±0.01d	2.54±0.02b	2.56±0.01a	2.28±0.01c
Chlorophyll/carotenoid	5.78±0.02a	5.48±0.02b	5.50±0.03b	4.50±0.02c