| Rootstock Name | Millardet et Grasset 420A |
|---|---|
| Names found in collections | 420A |
| Synonyms | Kobber 420A |
| DNA sample | 417 |
| Collection | 3 |
| Species or Pedigree | V. berlandieri X V. riparia |
| Reassignment of identity | |
| UCH2 | 166 |
| UCH2 | 158 |
| UCH11 | 0 |
| UCH11 | 0 |
| UCH12 | 174 |
| UCH12 | 186 |
| UCH19 | 0 |
| UCH19 | 0 |
| UCH29 | 0 |
| UCH29 | 0 |
| UCH35 | 0 |
| UCH35 | 0 |
| UCH40 | 0 |
| UCH40 | 0 |