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Representative pseudocolour images showing Fv/Fm (A and B) and ΦPSII (C and D) of flag leaves (A and C) and exposed peduncles (B and D) at different stages. Numbers 1-5 correspond (respectively) to the following developmental stages: the end of anthesis, the milk-development stage, the soft dough-development stage, the hard dough-development stage and the ripening stage. Fv/Fm: maximum PSII quantum yield; ΦPSII: effective PSII quantum yield. Bar = 5 cm.
