Figure 3.

Contents (in pmol g⁻¹ FW) of CK ribosides (a–c) and O-glucosides (d–f) in four developmental stages (T1–T4) during kohlrabi (cv. Vienna Purple) growth and de novo shoot organogenesis on media containing 3/6/9% sucrose without the presence of cytokinins (a, d), with 2 mg L⁻¹ transZ (b, e) or with 2 mg L⁻¹ TDZ (c, f). Data are shown as the mean ± SE (n = 3 independent biological replicates). Means marked with the same letter within each developmental stage of each treatment were not significantly different according to the LSD post-hoc test, P ≤ 0.05. transZ: trans-zeatin; TDZ: thidiazuron.