Figure 8.

Principal component analysis (PCA) showing the relationship of morpho-physiological traits and stress hormones at (A) stem elongation stage and (B) anthesis stage (Rujana, Silvija, Fifi, Anđelka, Bubnjar, and Pepeljuga) under two drought regimes (T1 = VSMC-45% and T2 = VSMC-65%) and control (C). PCA was performed on the correlation matrix of average values of morpho-physiological attributes (number of leaves, leaf length, leaf width, number of tillers, RWC, number of spikelets per ear, stem height, plant height), and concentrations of stress hormones (abscisic acid and salicylic acid).