1991 Fiscal Year Final Research Report Summary

Collection and storage of weed seeds

Research Project

Project/Area Number	02660015
Research Category	Grant-in-Aid for General Scientific Research (C)
Allocation Type	Single-year Grants
Research Field	作物
Research Institution	Reserach Institute for Bioresources, Okayama University
Principal Investigator	ENOMOTO Takashi Research Institute for bioresources, Okayama University Research associate, 資源生物科学研究所, 助手 (50033254)
Project Period (FY)	1990 – 1991
Keywords	Weed / Seed bank / Storage of seeds / Weed of Japan / Seed weight / Endangered plant / 種子数
Research Abstract	2316 samples of weed seeds of Japan were collected and stored in a refrigerator room of -20 degrees of Celsius. They belong to 845 species of 89 families. The samples include most of the weed species of Japan. A wind-operated machine to select ripe seeds is very useful. Number of seeds in a fruit was counted and weight of seeds were measured. After dehumidifying seeds with desiccator, seeds were stored in a refrigerated room of minus twenty degrees of Celsius. Seeds of the most of the species are safely stored by this method. Some seeds of aquatic plant died after drying them. Such a kind of seeds are stored in the water and kept in a refrigerator of four degrees of Celsius. All data measured about seeds are stored as a database in a personal computer.