| Variety | Seed weight class | NucleoSpin Plant II method | Modified Doyle & Doyle method | ||||
| Seed weight (mg) | DNA quality 260/280 ratio | DNA yield (ng∙mg−1) | Seed weight (mg) | DNA quality 260/280 ratio | DNA yield (ng∙mg−1) | ||
| Malbec | Small | 23.8 ± 0.7 | 1.9 ± 0.1 | 30.4 ± 09.3 | 22.6 ± 1.3 | 1.0 ± 0.3 | 232 ± 242 |
| Medium | 27.4 ± 0.8 | 1.8 ± 0.2 | 28.1 ± 09.3 | 28.2 ± 1.9 | 0.9 ± 0.1 | 363 ± 179 | |
| Large | 32.3 ± 1.4 | 1.8 ± 0.1 | 24.8 ± 05.2 | 31.8 ± 1.9 | 0.9 ± 0.1 | 519 ± 391 | |
| Caladoc | Small | 23.3 ± 1.1 | 1.7 ± 0.3 | 38.2 ± 03.8 | 22.1 ± 1.1 | 0.9 ± 0.1 | 221 ± 117 |
| Medium | 26.2 ± 1.0 | 1.8 ± 0.1 | 38.4 ± 11.5 | 25.5 ± 0.3 | 0.8 ± 0.1 | 602 ± 114 | |
| Large | 30.8 ± 0.9 | 1.8 ± 0.1 | 35.1 ± 06.9 | 30.6 ± 0.4 | 0.9 ± 0.1 | 694 ± 090 | |
| Petit Verdot | Small | 22.8 ± 1.0 | 1.9 ± 0.3 | 26.2 ± 11.7 | 23.2 ± 1.3 | 0.9 ± 0.1 | 478 ± 295 |
| Medium | 27.3 ± 1.6 | 1.8 ± 0.1 | 24.8 ± 01.1 | 27.4 ± 1.3 | 0.9 ± 0.1 | 576 ± 267 | |
| Large | 32.4 ± 1.8 | 1.8 ± 0.1 | 28.8 ± 07.9 | 31.2 ± 0.6 | 0.9 ± 0.1 | 699 ± 274 | |