Fig. 1.

Schematic diagram of the growing pattern of monocyclic (green points, solid line) and bicyclic (red points, dotted line) shoots. Monocyclic shoots were characterized by a leaf appearance rate (R), a growth cessation date (T) and a growth duration (GD), and bicyclic shoots by two leaf appearance rates (before and after growth arrest, R₁ and R₂, respectively), two growth durations (before and after growth arrest, GD₁ and GD₂, respectively), an arrest date (T₁), a growth resumption date (T₂), a duration of the rest period (AP) and a growth cessation date (T₃).