Abstract
The auther has studied on bleeding and guttation of seedlings of upland rice varieties in comparison with lowland rice. The main results were as follows : 1) When both rice seedlings were cultured in upland and lowland conditions, bleeding of upland rice seedling was always inferior to that lowland rice till third leaf stage, but the superiority of bleeding of upland rice seedling over that of lowland rice seedling was recognized after fourth leaf stage. 2) The auther recognized that these inclination are mainly due to increase of root pressure in seedling of upland condition and of water absorptive surface of root in seedling of lowland condition. 3) It is remarkable point that these stages of rice plants fall on turning-point of absorption of nutrition.
