Plant stand

PFD in 24 h

(mol·m²·day⁻¹)

Proportion of light in 7 h

(10 - 17 h)

CO₂ conc.

(µmol·mol⁻¹)

CER in 24 h

(mL CO₂ day⁻¹)

CER in 7 h

(mL CO₂ day⁻¹)

CER in 7 h/ CER 24 h

1

18.1 ± 3.5

0.70 ± 0.01

370

2132 ± 238

1760 ± 28

0.83 ± 0.11

2

370

2102 ± 119

1720 ± 57

0.82 ± 0.07

F-value/Sign. level

0.03^ns

0.80^ns

0.01^ns

1

19.0 ± 3.6

0.68 ± 0.01

370

2381 ± 308

1915 ± 225

0.81 ± 0.03

2

800

3526 ± 592

2673 ± 334

0.76 ± 0.05

F-value/Sign. level

14.7^**

17.7^**

2.92^ns