Table 8.
Average scores of F1 apple hybrids from 22 hybrid combinations for apple scab (Venturia inaequalis) and powdery mildew (Podosphaera leucotricha) attack degree (AD%) *.
| No. | Hybrid Combination (Parents ♀ × ♂) | Apple Scab | Powdery Mildew | ||||
|---|---|---|---|---|---|---|---|
| Mean ± SD | Sign. | CV% | Mean ± SD | Sign. | CV% | ||
| 1 | Mutsu × Aromat de vară | 1.68 ± 0.13 | bc | 31.2 | 3.06 ± 0.32 | b | 45.2 |
| 2 | Mutsu × Roșu de Cluj | 2.23 ± 0.12 | a | 13.2 | 2.70 ± 0.53 | c | 47.9 |
| 3 | Reinette Baumann × Golden spur | 1.44 ± 0.12 | cd | 18.1 | 2.44 ± 0.57 | cd | 52.6 |
| 4 | Aromat de vară × Reinette Baumann | 1.40 ± 0.13 | cd | 20.2 | 3.08 ± 0.23 | b | 19.3 |
| 5 | Aromat de vară × Melba | 1.87 ± 0.17 | b | 22.1 | 3.97 ± 0.33 | a | 20.5 |
| 6 | Aromat de vară × Ancuța | 1.77 ± 0.13 | b | 27.6 | 2.20 ± 0.17 | cd | 28.3 |
| 7 | Aromat de vară × Mutsu | 1.35 ± 0.17 | cd | 25.3 | 1.90 ± 0.17 | d | 18.2 |
| 8 | Ardelean × Feleac | 1.48 ± 0.09 | cd | 27.6 | 2.95 ± 0.19 | bc | 31.0 |
| 9 | Prima × Feleac | 1.28 ± 0.13 | d | 57.4 | 3.08 ± 0.57 | b | 45.8 |
| 10 | Prima × Ardelean | 1.44 ± 0.11 | cd | 34.3 | 3.59 ± 0.31 | b | 39.0 |
| 11 | Ardelean × Prima | 1.74 ± 0.11 | b | 18.6 | 3.43 ± 0.60 | b | 52.8 |
| 12 | Ardelean × Ancuța | 1.49 ± 0.14 | cd | 31.7 | 3.81 ± 0.39 | ab | 35.5 |
| 13 | Roșu de Cluj × Feleac | 1.35 ± 0.17 | cd | 25.3 | 3.65 ± 0.25 | b | 13.7 |
| 14 | Ancuța × Mutsu | 1.20 ± 0.08 | d | 19.9 | 2.56 ± 0.37 | c | 41.4 |
| 15 | Kinrei × Ardelean | 2.17 ± 0.28 | a | 31.6 | 3.17 ± 0.31 | b | 24.4 |
| 16 | Ancuța × Roșu de Cluj | 1.25 ± 0.10 | d | 15.3 | 3.80 ± 0.64 | ab | 33.6 |
| 17 | Golden Delicious × Ancuța | 1.76 ± 0.09 | b | 13.9 | 3.21 ± 0.37 | b | 30.9 |
| 18 | Roșu de Cluj × Ancuța | 1.60 ± 0.14 | bc | 17.7 | 4.80 ± 0.24 | a | 10.2 |
| 19 | Roșu de Cluj × Kaltherer Böhmer | 1.68 ± 0.15 | bc | 25.4 | 2.85 ± 0.33 | c | 33.1 |
| 20 | Kinrei × Jonathan | 1.72 ± 0.10 | b | 13.3 | 2.60 ± 0.38 | c | 33.1 |
| 21 | Ancuța × Golden spur | 1.60 ± 0.08 | bc | 10.2 | 3.70 ± 0.33 | b | 17.9 |
| 22 | Ancuța × Starkrimson | 1.94 ± 0.13 | b | 18.6 | 2.80 ± 0.15 | c | 14.3 |
| Mean of all combinations | 1.6 | 3.2 | |||||
* The assessment of the apple scab and powdery mildew attack was carried out by grading the varieties as follows: 1—without attack (attack degree (AD%) = 0); 2—very weak attack (AD% = 0.1–1.0); 3—weak attack (AD% = 1.1–5.0); 4—medium attack (AD% = 5.1–15.0); 5—strong attack (AD% = 15.1–20.0); 6—very strong attack (AD% > 20.1). The means on the same column for all hybrid combinations followed by different letters were significantly different according to Duncan’s MRT test (p < 0.05).