Fig. 6.
Pulse-modulated chlorophyll fluorescence measurements of non-photochemical quenching (NPQ) of WT and mutant plants. NPQ in response to irradiance of mature pre-bolting plants acclimated to (A), low light or (B), high light for 7 d. The arrow indicates the acclimation light level. For LL plants (A), NPQ was statistically higher in the mutants than the WT at all irradiances from 50–1500 μmol m−2 s−1. For HL acclimated plants (B), NPQ was statistically higher in the mutants than the WT at all irradiances from 200–1500 μmol m−2 s−1. N=7–14 per genotype, and the error bars are standard errors of the means.