Table 1.
Characteristics of the experiments used to acquire images for GWHD dataset.
| Sub-dataset name | Institution | Country | Lat (°) | Long (°) | Year | No. of dates | Targeted stages | Row spacing (cm) | Sowing density (seeds·m2) | No. of genotypes |
|---|---|---|---|---|---|---|---|---|---|---|
| UTokyo_1 | NARO & UTokyo | Japan | 36.0 N | 140.0 E | 2018 | 3 | Postflowering | 15 | 186 | 66 |
| UTokyo_2 | NARO & UTokyo | Japan | 42.8 N | 143.0 E | 2016 | 6 | Flowering∗ | 12.5 | 200 | 1 |
| Arvalis_1 | Arvalis | France | 43.7 N | 5.8 E | 2017 | 3 | Postflowering-ripening | 17.5 | 300 | 20 |
| Arvalis_2 | Arvalis | France | 43.7 N | 5.8 E | 2019 | 1 | Postflowering | 17.5 | 300 | 20 |
| Arvalis_3 | Arvalis | France | 49.7 N | 3.0 E | 2019 | 3 | Postflowering-ripening | 17.5 | 300 | 4 |
| INRAE_1 | INRAE | France | 43.5 N | 1.5 E | 2019 | 1 | Postflowering | 16 | 300 | 7 |
| USask_1 | University of Saskatchewan | Canada | 52.1 N | 106 W | 2019 | 1 | n.a | 30.5 | 250 | 16 |
| RRes_1 | Rothamsted research | UK | 51.8 N | 0.36 W | 2016 | 1 | n.a | n.a | 350 | 6 |
| ETHZ_1 | ETHZ | Switzerland | 47.4 N | 8.6 E | 2018 | 1 | n.a | 12.5 | 400 | 354 |
| NAU_1 | Nanjing Agric. University | China | 31.6 N | 119.4 E | 2018 | 1 | Flowering∗ | 20 | 300 or 450 | 5 |
| UQ_1 | UQueensland | Australia | 27.5 S | 152.3 E | 2016 | 1 | Flowering -ripening | 22 | 150 | 8 |
∗Images were checked carefully to ensure that heads have fully developed and flowered.