Figure 2.

Total Fe concentration in each leaf of seedlings after four days of Fe depletion. Fe contents were evaluated in three barley cultivars grown in hydroponic solutions containing 30 μM (green) or 0 μM (orange) EDTA-Fe for four days. (a) “Sarab1” (SRB), (b) “Ehimehadaka1” (EHM), and (c) “Ethiopia 2” (ETH). Values represent the mean (SE) of the three plants. L1 is the oldest leaf and L4 is the premature leaf just emerging. * p < 0.05 and ** p < 0.01 indicate significant differences (according to Student’s t-test) between the control leaf and Fe-deficient leaf.