Table 9.
Genetic parameters for traits analyzed in testcross combinations depending on tester.
| Tester | Mean Value F1 (Half-Sib Families) | GCV (%) | H2 | h2 | Expected Response to Selection (R) | |
|---|---|---|---|---|---|---|
| Absolute | Relative | |||||
| Trunk cross-sectional area—TCSA (cm2) | ||||||
| Feleac | 62.12 | 24.7 | 0.861 | 0.312 | 16.13 | 25.98 |
| Mutsu | 45.83 | 19.5 | 0.688 | 0.266 | 11.56 | 25.22 |
| Ancuta | 53.69 | 25.3 | 0.828 | 0.282 | 14.49 | 27.00 |
| Prima | 58.75 | 14.8 | 0.803 | 0.261 | 9.09 | 15.47 |
| Starkrimson | 65.23 | 27.5 | 0.882 | 0.408 | 21.44 | 32.86 |
| Height of the Tree (m) | ||||||
| Feleac | 4.61 | 10.0 | 0.779 | 0.241 | 0.49 | 10.63 |
| Mutsu | 3.90 | 14.9 | 0.794 | 0.416 | 0.84 | 21.54 |
| Ancuta | 4.17 | 13.2 | 0.864 | 0.312 | 0.58 | 13.91 |
| Prima | 4.40 | 5.0 | 0.651 | 0.130 | 0.20 | 4.55 |
| Starkrimson | 4.42 | 13.9 | 0.864 | 0.389 | 0.74 | 16.74 |
| Number of Fruits per Tree (marks; scale 1–3–5–7–9) | ||||||
| Feleac | 4.03 | 28.3 | 0.672 | 0.178 | 1.2 | 29.83 |
| Mutsu | 4.10 | – | – | – | – | – |
| Ancuta | 4.25 | 16.5 | 0.587 | 0.082 | 0.55 | 12.83 |
| Prima | 4.14 | – | – | – | – | – |
| Starkrimson | 4.06 | 29.1 | 0.698 | 0.212 | 1.32 | 32.6 |
| Fruit Size (marks; scale 1–3–5–7–9) | ||||||
| Feleac | 7.87 | 2.6 | 0.531 | 0.032 | 0.11 | 1.34 |
| Mutsu | 7.00 | 14.3 | 0.683 | 0.280 | 1.34 | 19.17 |
| Ancuta | 7.51 | 6.0 | 0.599 | 0.094 | 0.37 | 4.91 |
| Prima | 6.20 | 41.8 | 0.946 | 0.384 | 2.35 | 37.93 |
| Starkrimson | 7.39 | 11.5 | 0.760 | 0.278 | 1.01 | 13.67 |
| Ripening Time of the Fruit (days) | ||||||
| Feleac | 169.3 | 6.9 | 0.684 | 0.183 | 12.41 | 7.33 |
| Mutsu | 158.6 | 11.7 | 0.743 | 0.373 | 27.26 | 17.19 |
| Ancuta | 167.6 | 7.7 | 0.716 | 0.202 | 13.84 | 8.26 |
| Prima | 164.7 | 8.3 | 0.779 | 0.241 | 14.26 | 8.66 |
| Starkrimson | 172.1 | 12.6 | 0.900 | 0.427 | 25.63 | 14.89 |
| Taste of the Fruit (marks; scale 1–3–5–7–9) | ||||||
| Feleac | 5.81 | – | – | – | – | – |
| Mutsu | 5.10 | 8.1 | 0.566 | 0.101 | 0.37 | 7.21 |
| Ancuta | 5.52 | 8.3 | 0.628 | 0.117 | 0.41 | 7.34 |
| Prima | 4.57 | 49.8 | 0.975 | 0.410 | 7.91 | 41.90 |
| Starkrimson | 4.98 | 21.4 | 0.829 | 0.351 | 1.29 | 25.93 |
| Response to Apple Scab Attack (marks; scale 1–2–3–4–5–6) | ||||||
| Feleac | 1.64 | 12.5 | 0.677 | 0.153 | 0.20 | 12.02 |
| Mutsu | 1.70 | 16.6 | 0.668 | 0.245 | 0.36 | 21.08 |
| Ancuta | 1.71 | 17.3 | 0.876 | 0.309 | 0.30 | 17.54 |
| Prima | 1.37 | (22.3) | – | – | – | – |
| Starkrimson | 1.65 | 14.9 | 0.819 | 0.341 | 0.30 | 18.09 |
| Response to Powdery Mildew Attack (marks; scale 1–2–3–4–5–6) | ||||||
| Feleac | 2.58 | 18.2 | 0.763 | 0.228 | 0.49 | 19.16 |
| Mutsu | 2.50 | 9.8 | 0.554 | 0.079 | 0.19 | 7.74 |
| Ancuta | 2.59 | 26.9 | 0.825 | 0.339 | 0.81 | 31.45 |
| Prima | 1.85 | 41.0 | 0.891 | 0.337 | 0.75 | 40.70 |
| Starkrimson | 2.59 | 22.7 | 0.852 | 0.376 | 0.71 | 25.73 |
Note: GCV: genotypic coefficient of variation; H2: heritability in broad sense; h2: heritability in narrow sense.