Table 1.

Comparison in chlorophyll contents of rice plants grown under different nitrogen and water conditions.

Treatment		Chlorophyll a content/mg g-1 Fw	Chlorophyll b content/mg g-1 Fw	Carotenoid content/mg g-1 Fw	Total chlorophyll content/mg g-1 Fw
Low N	WW	2.83 ± 0.04 c	0.82 ± 0.01 c	0.59 ± 0.01 b	4.23 ± 0.05 d
	WD	2.90 ± 0.02 c	0.85 ± 0.02 c	0.61 ± 0.01 b	4.36 ± 0.04 d
Moderate N	WW	3.43 ± 0.12 b	1.23 ± 0.02 b	0.69 ± 0.03 a	5.35 ± 0.14 b
	WD	2.94 ± 0.09 c	1.44 ± 0.07 a	0.54 ± 0.03 b	4.92 ± 0.11 c
High N	WW	3.69 ± 0.09 a	1.45 ± 0.07 a	0.72 ± 0.02 a	5.86 ± 0.08 a
	WD	3.64 ± 0.06 ab	1.48 ± 0.03 a	0.72 ± 0.02 a	5.84 ± 0.04 a
	Nitrogen	52.75∗∗∗	115.27∗∗∗	17.13∗∗∗	166.73∗∗∗
F-value	Water	5.95∗	6.55∗	5.87∗	2.42 ns
	Nitrogen × water	7.17∗∗	2.73 ns	8.52∗∗	5.72∗

Data refers to mean ± SE (n = 4). F-values of the two-way ANOVAs of nitrogen, water, and their interaction are indicated: ns, not significant; ^∗P < 0.05; ^∗∗P < 0.01; ^∗∗∗P < 0.001. Means in the same column with the same letter are not significantly different by LSD test. WD, water deficit; WW, well-watered.