Abstract
The effect of ear barrenness on concentration of total available carbohydrates (TAC) in stalks of a two-ear type hybrid, Hokuyu, was examined. Fertilization was prevented by placing waxed paper bags over the ear shoots of the first ear, the second ear, and the both ears before silking, as shown in Fig. 1. The concentration of TAC in the stalks with the barren ear or ears increased markedly because of absence or decrease of storage organ for the carbohydrates produced after flowering (Fig. 2). In the plant with one barren and one normal ears, a higher TAC concentration was observed at the nearest internode to the barren ear three weeks after silking (Fig. 3).
