Table 3 Effect of light-water treatment on gas exchange parameters and SPAD value.

From: Light and water treatment during the early grain filling stage regulates yield and aroma formation in aromatic rice

Treatment

Pn (μ mol CO2 m−2 s−1)

Tr (mmol H2O m−2 s−1)

Gs (mol H2O m−2 s−1)

Ci (μmol CO2 mol−1)

SPAD value

AS

MS

AS

MS

AS

MS

AS

MS

AS

MS

Xiangyaxiangzhan

CK

15.03a

7.93a

10.91a

4.79a

0.57a

0.15a

316.74a

276.67a

23.33c

15.15c

WS

13.01b

8.13a

7.73c

4.83a

0.34c

0.16a

297.76b

281.00a

27.73b

17.38b

LL

15.22a

7.69a

9.63b

5.21a

0.51b

0.15a

307.03ab

265.56a

31.05a

18.18b

LL-WS

9.63c

9.25a

7.20c

4.84a

0.34c

0.15a

322.30a

248.00b

30.33a

21.75a

Mean

13.22

8.25

8.87

4.92

0.44

0.15

310.96

267.81

28.10

18.10

Yuxiangyouzhan

CK

17.01a

10.83a

12.72a

6.68b

0.71b

0.28b

316.81b

289.33b

29.55b

20.58b

WS

15.86a

10.07a

11.55a

5.17c

0.59c

0.18c

313.39b

262.67c

28.15c

21.65b

LL

13.98b

12.00a

11.15ab

8.49a

0.83a

0.41a

331.25a

317.00a

33.43a

26.88a

LL-WS

11.50c

11.61a

9.48b

5.70bc

0.57c

0.19c

329.12a

249.00c

33.60a

24.80a

Mean

14.58

11.13

11.22

6.51

0.67

0.27

322.64

279.50

31.20

23.50

  1. Within a column for each cultivar, means followed by different letters are significantly different according to LSD (0.05).
  2. 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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