Kagawa University Agriculture

Research Area:　Horticultural Science　
Research Specialization:　Protected Horticultural Science　
Name:　TOMIYOSHI, Keita

Keywords：protected horticulture, Nelumbo nucifera,

　　　　　　　 control of growth environment, sustainable cultivation technology

1.　Ecological characteristics of edible lotus. 　

Elongation and enlargement of rhizome in edible lotus are controlled by photoperiod, that is to say, rhizome elongates and enlarges under long and short days, respectively. However, early maturing cultivars grown in plastic tunnels and greenhouses exhibit rhizome enlargement even in long-day conditions. This suggests the presence of other factors controlling rhizome elongation/enlargement in edible lotus. We study the effects of various growth environments on the elongation and enlargement of edible lotus rhizomes and clarify the ecological characteristics of edible lotus.

2.　Establishment of the edible lotus protected cultivation system.

In general, cultivation of edible lotus requires a large growth area, which makes difficult to control the growth environment. If it becomes possible to cultivate edible lotus in a small container, productivity can be expected to increase by controlling of growth environment in greenhouses. Therefore, we aim to explore and breed cultivars that are suitable for cultivation in a small growth area and establish stable production techniques by controlling of growth environment.