Fig. 8.
Dendrogram classification for 41 Arabidopsis accessions that had been exposed for 4 d to moderate VPD (1.17 kPa) or to low VPD (0.23 kPa). The PSII efficiency (ΦPSII) under non-photorespiratory conditions at 200 µM ABA relative to ΦPSII of the control (0 µM ABA), and the slope of the fitted sigmoidal relationship between transpiration rate and RWC of the leaves were used for classification. The red boxes indicate accessions with three different type of responses to closing stimuli. The number at the bottom of the dendrograms correspond to the number of PCA grouping.