Figure 3.

Hematin, IAA, and SNP alleviate the IAA depletion-induced inhibition of adventitious root development in cucumber. Explants with auxin depletion pretreatment were further incubated as indicated for 5 d. A, Hematin-induced adventitious rooting in cucumber. B, No additive effects of hematin (10 μm) with IAA (10 μm) or SNP (10 μm) were discovered. C, Photographs were taken after 5 d of treatment. Bar=1 cm. Mean and se values were calculated from at least three independent experiments (n=20). Bars with asterisks were significantly different in comparison with water treatment (0 μm hematin) at P < 0.05 and P < 0.01 according to t test (A). Bars denoted by the same letter did not differ significantly at P < 0.05 according to Duncan's multiple test (B).