Fig. 4.

(Top) Number of living florets (relative to the maximum in each case) plotted against the developmental stage of the most advance floret (F1) in central spikelets for each of the three spikelet positions considered (upper panels) analysed for each of the six environmental conditions explored throughout the studies analysed independently. (Bottom) Frequency of developmental scores of the F1 of central spikelets at which the onset of floret death took place in each environmental conditions studied.