Table 4.

Relative cyclic electron flow and changes induced by VP and [CO₂]-lowering.

	VP	[CO2]- lowering to 10–15 ppm	[CO2]- lowering to 150 ppm	VP under [CO2] = 10-15 ppm	VP under far red light
Relative EF(C)initial, %	26.6 ± 3.2	25.5 ± 4.9	23.5 ± 3.3	57.2 ± 3.8	70.7 ± 0.5
Relative EF(C)max, %	37.9 ± 2.7*	59.9 ± 3.5*	35.8 ± 3.7*	69.5 ± 3.0*	74.5 ± 0.9*
Change in relative EF(C), %	11.3 ± 1.3*	34.5 ± 3.0*	12.3 ± 1.0*	12.3 ± 1.6*	3.9 ± 0.6*

^*p < 0.05 compared with control, paired Student t-test (n = 9–17).