The claim
あきたこまちRは放射線育種米？
Original review summary
The review explains that あきたこまちR was developed by crossing あきたこまち with a rice variety derived from irradiated Koshihikari, then repeatedly crossing it with あきたこまち. It says irradiation was used at an early stage of breeding, not on the growing rice plants or harvested rice.[S1]
Additional context
The review says the variety was developed to reduce cadmium uptake and was intended to help address stricter cadmium limits in export markets. [S1]
Research date:
Sources and attribution
- [S1] 日本ファクトチェックセンター original review
Original review · Retrieved October 16, 2026