Table 7 Effect of light-water treatment on P5CS activity, PDH activity, OAT activity and DAO activity in leaves and grains.

Treatment	P5CS activity (U g⁻¹ FW)				PDH activity (U g⁻¹ FW)				OAT activity (U g⁻¹ FW)				DAO activity (U g⁻¹ FW)
	Leaves		Grains		Leaves		Grains		Leaves		Grains		Leaves		Grain
	AS	MS	AS	MS	AS	MS	AS	MS	AS	MS	AS	MS	AS	MS	AS	MS
Xiangyaxiangzhan
CK	30.15c	51.31bc	4.03ab	2.71b	23.18a	24.96ab	33.92b	32.26b	20.98a	13.98c	38.92ab	34.51b	6.04a	7.61b	6.13a	5.56a
WS	44.01a	58.41a	3.69b	3.44a	18.4b	27.16a	47.85a	36.19a	10.95c	16.95b	41.52a	35.86ab	6.72a	8.20ab	6.48a	6.14a
LL	30.15c	55.52ab	4.60a	2.33b	17.56b	18.27c	33.02b	33.68ab	9.41c	19.27a	39.54a	35.63ab	5.41a	7.23b	6.26a	6.17a
LL-WS	35.28b	48.24c	3.73b	3.41a	15.85b	21.76bc	35.75b	34.74ab	14.46b	17.06b	35.75b	37.66a	6.29a	9.64a	6.26a	5.68a
Mean	34.90	53.37	4.01	2.97	18.75	23.04	37.63	34.22	13.95	16.81	38.94	35.92	6.11	8.17	6.28	5.89
Yuxiangyouzhan
CK	39.27b	45.25c	2.32c	2.00b	20.27a	28.24a	28.61a	31.68b	21.93b	17.28a	38.60b	33.95a	6.89b	10.09ab	6.26b	5.52ab
WS	49.14a	53.02a	2.86b	1.75b	20.22a	27.57a	31.89a	32.90ab	17.57c	18.77a	44.85a	33.23a	8.54a	9.47bc	6.58a	5.48ab
LL	37.77b	45.03c	2.38bc	2.85a	20.43a	26.78a	31.39a	33.76a	26.50a	20.16a	39.60b	27.12b	8.31ab	8.23c	5.94c	5.39b
LL-WS	40.60b	49.31b	3.61a	2.84a	18.17a	32.33a	29.43a	33.49a	11.44d	20.14a	37.20b	31.92a	8.92a	11.14a	6.48ab	5.92a
Mean	41.70	48.15	2.79	2.36	19.77	28.73	30.33	32.96	19.36	19.09	40.06	31.55	8.16	9.73	6.31	5.58

Within a column for each cultivar, means followed by different letters are significantly different according to LSD (0.05).
CK, natural light and well-watered treatment; WS, natural light and water-stressed treatment; LL, low light and well-watered treatment; LL-WS, low light and water-stressed treatment; AS, After shading; MS, Maturity stage.

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