Fig. 5

Effects of exogenous IAA and NPA on AR formation in tomato cuttings. Tomato stem cuttings were grown in hydroponic solution to which either 10 μM IAA or 10 μM NPA was added, and AR primordia and roots were observed over a 9d time course. (i) Stem cutting at time 0 (0d). A-D AR formation in control stems. E-H AR formation in IAA-treated cuttings. Box and arrowhead in (A) and (E) show AR primordia. I-L AR formation in NPA-treated cuttings. Bow and arrowhead in (K) show curling root. Bars = 0.5 cm. Primordia number (M) and root length (N) at different time points of control, IAA- and NPA-treated tomato cuttings. Data are means and standard errors of five plants. The experiment was repeated twice. Data were collected 3, 5, 7 and 9 dpe