Leaf size parameters of Col-0 and the five IYG lines. Plants were grown in vitro (GRF5 and JAW) or semihydroponically (BRI1, AVP1, and GA20OX1) for 22 d. Leaves 1 and 2 from GRF5, JAW, and BRI1 and leaf 6 from AVP1 and GA20OX1 (A) were harvested to measure the leaf area (B), blade and petiole lengths (C), and leaf width (D). Values are averages ± se (n = 8–12; * P < 0.05). Bars in A = 5 mm.