Abstract
Suaeda japonica Makino belonging to the family Chenopodiaceae is a rare halophyte grown only in the muddy tidal flat of the Ariake Sea.
In this research, since it became impossible to grow Suaeda japonica Makino that's one of the nationally rare halophyte species, researches about the species conservation continued to collect the knowledge for reproducing the tidal flat which can grow the halophyte.
Thereby, when a tidal flat was developed as a growth ground of Suaeda japonica Makino, it became clear that a setup of the amount of soil moisture adjusted by wetting and drying scheme and fine-grained fraction in a germination and sprout stage are most important.
