Abstract
To investigate the influences of preventing fruiting on corn stalk, normal pollination and prevention of pollination by placing waxed paper bags over ear shoots were applied to a hybrid. Brix readings in stalk juice and accumulation of dry matter in stalks of unpollinated plants significantly exceeded those of pollinated plants. On the other hand, the volumes of each internode were nearly equal in the plants of two treatments. The dry matter weight per volume of each internode can be a useful indicator available for estimation of source-sink balance during the grain filling period.