Abstract
Growth and tuber formation of Chinese water chestnut (Eleocharis tuberosa Roem) cultured in flooded conditions until the end of cultivation were obserbed. The tuber was planted on May 24 th. Daughter hills and stems increased rapidly from July. The number of daughter hills was about 110 in October. Maximum stem height was about 2 m in November. Stolons and tubers increased rapidly after September and October, respectively. Most of the tubers were formed within 15 cm from the ground surface regardless of planting depth. Many large tubers were formed when the tuber was planted at a depth of 7~8 cm from ground surface.