Figure 4:Relationships between PS II maximum quantum yield
(Fv /Fm ) breakpoint
temperature, T5 , and decline width, the
temperature window of Fv /Fm declines from 95%
to 5% of the maximum Fv/Fm level
(T95 – T95 ). A) Evergreen
trees from Nova Xavantina measured during end of dry and wet seasons and
B) Extended analysis using data from an unpublished study from a
Cerradão (savannah forest) site in Nova Xavantina (wet season) combined
with data from Panama sampled during wet season reanalyzed from data
published by Slot et al. (2018) [Error bars in panel A: seasonal
variation whereas panel B, variation across individual tree
replicates]