Table 2.

Chlorophyll fluorescence parameters obtained from the abaxial (lower) leaf side of leaves of the green and red phenotype in late winter

Fluorescence parameter	Green leaves	Red leaves
φPo	0.838±0.011	0.822±0.024
φEo	0.507±0.044	0.392±0.063
φRo	0.201±0.028	0.132±0.026
ψEο	0.605±0.048	0.476±0.064
δRo	0.396±0.049	0.337±0.035
ABS/RC	1.947±0.158	2.385±0.446

Data are means ±standard deviation from 10 leaves (two leaves/shrub). Differences in each parameter between the two phenotypes are statistically significant (P <0.05), with the exception of φ_Po.