Photochemical efficiency of PSII (FPSII) was the most sensitive to
high light intensity e it declined considerably e by about 35% after
2 days at NT-HL, while at the higher temperature it was comparable
with that of NT-NL plants even a little higher (Fig. 2C). The simultaneous
action of both factors for 2 days resulted in alleviation of
the effect of high light and the value for FPSII was comparable with
that of NT-NL plants. Quantum yield of PSII declined in all variants