ABSTRACT
The inflorescence develops as a dichasium in the axils of the leaves. Both Begonia bowerae and B. bowerae var. nigramarga are SDP, which grow vegetatively under a 16-hr photoperiod and produce inflorescences in short-day (SD) in the axils of the leaves while growing vegetatively at the apex of a rhizome. The minimum number of inductive SD cycles may depend on some other factors, i.e., the physiological activity of leaves and area. Physiological activity of leaves may depend on the age of the leaves, and therefore on the position of the leaves at the rhizome. Leaves under long-day totally inhibited flowering when inserted between SD leaves and the tip of the rhizome. The apex of the rhizome is nearly a smooth dome surrounded by leaf primordia, growing continuously forming leaves. All axillary rhizomes were removed and the plants were treated with ten inductive SD cycles.
