There are lots of rice varieties in Japan. 971 varieties have been registered since 1981. And 481 varieties are now on the list.
| Holder of Variety | No. of varieties |
| Local government | 524 |
| National government | 187 |
| Private company | 95 |
| Individual person | 77 |
| Collaboration with private and public | 24 |
| University in Japan | 8 |
| Korea National Open University Industry Academic Cooperation Foundation | 2 |
| Total | 917 |
Plant Variety Protection - PVPO at MAFF, JAPAN
www.hinshu2.maff.go.jp
I can say public organizations are main players in rice breeding in Japan.
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