01 / Yoshimiwase onion
A seed kept about 20 years in a tin under a floorsprouted in a germination test.
Yoshimiwase is a flat onion that could no longer be shipped to the farmers' cooperative in the late 1980s and vanished from the town. In 2006 a farmer's tins of seed, kept under his floor for about 20 years, came to light; at a prefectural technology centre, three tins averaged 40.7% germination. The town writes that it was revived after 20 years.
- About 20 years in tins under a floor
- Average germination 40.7% (three tins)
- Cultivation resumed in fiscal 2006

