The Effect of 2, 3, 5-Triiodobenzoic Acid on the Flower Initiation of Soybeans

Abstract

Soybean plants grown under the short day condition were sprayed with TIBA solution at various stages from flower initiaton to flowering. The number of flower buds inceased much in the plants treated with TIBA at the stage about ten days before flowering, while in the plants treated at the earlier stages the number of leaf increased considerably rather than that of flower bud. On the former plants, more flower buds than those on the control plants were produced at the bases of axillary shoots, and flower clusters had already grown. And the adventitious shoots with a leaf and flower buds developed at the bases of their primary axillary shoots.