The 2008 Early Regional Trial consisted of 3 cultivars and 12numbered lines. All entries fried light with USDA ratings of "0" . They also fried uniform from stem to bud ends.
| PHOTOVOLT | DIFFERENCE* | USDA | ||||
| Clone | Stem | Bud | Average | STEM - BUD | COLOR | |
| 1 | Ranger Russet | 46.2 | 45.6 | 45.9 | 3.2 | 0 |
| 2 | Russet Burbank | 48.1 | 44.9 | 46.5 | 4.0 | 0 |
| 3 | Russet Norkotah | 42.6 | 48.2 | 45.4 | 6.3 | 0 |
| 4 | A0008-1TE | 52.8 | 51.3 | 52.1 | 2.7 | 0 |
| 5 | A97066-42LB | 45.2 | 44.9 | 45.0 | 5.2 | 0 |
| 6 | AC96052-1Ru | 54.3 | 52.0 | 53.2 | 3.3 | 0 |
| 7 | AO96141-3 | 54.1 | 49.5 | 51.8 | 5.2 | 0 |
| 8 | AOTX95265-2ARu | 43.4 | 46.8 | 45.1 | 4.7 | 0 |
| 9 | AOTX95265-3Ru | 38.7 | 45.6 | 42.1 | 7.1 | 0 |
| 10 | AOTX95265-4Ru | 44.7 | 48.4 | 46.5 | 6.1 | 0 |
| 11 | CO97087-2Ru | 50.7 | 46.8 | 48.8 | 4.4 | 0 |
| 12 | CO98067-7Ru | 44.2 | 48.4 | 46.3 | 4.8 | 0 |
| 13 | CO98368-2Ru | 45.0 | 48.9 | 46.9 | 5.3 | 0 |
| 14 | PA99N2-1 | 48.6 | 48.0 | 48.3 | 3.9 | 0 |
| 15 | PA99N82-4 | 45.8 | 45.7 | 45.8 | 4.7 | 0 |
| LSD 0.05 | 2.7 | 2.9 | ||||
| Average | 46.9 | 47.7 | 47.3 | 4.7 | 0 | |
| * Average of 12 individual tuber absolute differences | ||||||
| Planting date: | xx | |||||
| Harvest date: | July 31 | |||||
| Fried on: | August 4 | |||||