Table 4.
Late blight resistance of parental forms, three resistant somatic hybrids and two sets of autofused 4x mch using detached leaf tests in two replicates in 2009–2011 (in scale 1–9, where 9- resistant)
| Parental forms, resistant somatic hybrids and 4x mch | Mean resistance to P. infestans 2009–2011a | Resistance range |
|---|---|---|
| mch/8 | 8.1 ± 0.7 | 5.0–9.0 |
| mch/39 | 8.0 ± 1.5 | 4.0–9.0 |
| DG 81-68 | 2.3 ± 2.1 | 1.0–6.0 |
| DG 88-89 | 2.1 ± 2.4 | 1.0–5.0 |
| dH Bard | 1.3 ± 0.8 | 1.0–3.0 |
| cv. Rywal | 1.4 ± 1.0 | 1.0–4.0 |
| 4x [mch/39 (+) DG 81-68] | 7.0 ± 1.0 | 4.0–9.0 |
| 4x [mch/39 (+) dH Bard] | 7.6 ± 1.5 | 4.0–9.0 |
| 6x [mch/39 (+) cv. Rywal] | 6.9 ± 2.0 | 4.0–9.0 |
| autofused 4x mch/8 (91 forms) | 7.5 ± 0.7 | 5.0–9.0 |
| Autofused 4x mch/39 (18 forms) | 7.8 ± 0.9 | 5.0–9.0 |
a± Standard deviation