Table 4. Comparison of OJIP parameters measured with direct fast imaging in comparison to P&P with 10-s delay time

The values represent the average and se of an independent measurement on different plants. The values represent medians ± se (n = 4). Asterisks denote significant differences between the two groups according to the Mann-Whitney test (*P < 0.05, **P < 0.01, ***P < 0.001).

ParameterDirect Fast ImagingP&P 10-s Delay
Vj0.520 ± 0.0060.47 ± 0.007**
Vi0.87 ± 0.0080.94 ± 0.005**
Mo1.44 ± 0.0231.20 ± 0.027***
ΦPo0.825 ± 0.0050.82 ± 0.003
ΦET2o0.39 ± 0.0060.44 ± 0.006**
ΦRE1o0.105 ± 0.0080.05 ± 0.006**
ABS/RC3.35 ± 00293.14 ± 0.033**
TRo/RC2.75 ± 0.0152.575 ± 0.023**
ET2o/RC1.315 ± 0.0141.385 ± 0.005*
RE1o/RC0.355 ± 0.0190.16 ± 0.011***
DIo/RC0.600 ± 0.0150.565 ± 0.010