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Cultivar name, year of release or introduction, sub-species and days from transplanting to maturity for the chosen three rice cultivars.
| Cultivar name | Breeding locations | Year of release or introduction | Sub-species | Days from transplanting to maturity |
|---|---|---|---|---|
| Shishoubaimao | Hokkaido, Japan | 1935 | subsp.japonica | 125 |
| Hejiang 19 | Heilongjiang, China | 1978 | subsp.japonica | 125-130 |
| Longjing 31 | Heilongjiang, China | 2011 | subsp.japonica | 130 |
