Table 2. Griffing’s method I, model I ANOVA mean square values for carrot growth traits, including canopy height and width, shoot biomass, root biomass, and the ratio of shoot:root biomass.
| Height | Width | Shoot Biomassa | Root Biomassa | Shoot:Root Ratioa | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Source | df | 80 DAP | 130 DAP | 80 DAP | 130 DAP | Fresh | Dry | Fresh | Dry | |
| Genotype (G) | 35 | 331.34*** | 489.3*** | 353.57*** | 433.77*** | 1.8*** | 2.13*** | 0.76*** | 0.91*** | 0.24*** |
| GCA | 5 | 516.06*** | 1488.95*** | 363.35*** | 1024.37*** | 7.27*** | 8.55*** | 1.13*** | 1.74*** | 1.27*** |
| SCA | 15 | 393.69*** | 376.33*** | 362.43*** | 435.66*** | 0.95*** | 1.21*** | 1.11*** | 1.3*** | 0.06*** |
| Reciprocal | 15 | 207.42*** | 269.07*** | 341.46*** | 235.02*** | 0.83*** | 0.91*** | 0.28*** | 0.24** | 0.07*** |
| Location (E) | 2 | 10794.6*** | 268.7** | 11668.22*** | 944.08*** | 0.11 | 2.06*** | 17.8*** | 19.71*** | 0.27*** |
| G × E | 70 | 25.91* | 68.48*** | 55.6 | 64.74 | 0.26*** | 0.28** | 0.12 | 0.12 | 0.04*** |
| GCA × E | 10 | 39.72* | 134.49*** | 55.63 | 110.75* | 0.45*** | 0.4** | 0.21* | 0.2 | 0.08*** |
| SCA × E | 30 | 25.26* | 43.07 | 36.82 | 50.95 | 0.26** | 0.31** | 0.14 | 0.13 | 0.04*** |
| Reciprocal × E | 30 | 21.96 | 71.88** | 74.37 | 63.2 | 0.19* | 0.2 | 0.09 | 0.09 | 0.02 |
| rep(E) | 3 | 24 | 12.49 | 56.44 | 106.03 | 0.1 | 0.12 | 0.14 | 0.15 | 0.01 |
| Error | 105 | 15.38 | 32.14 | 45.39 | 53.17 | 0.12 | 0.14 | 0.09 | 0.1 | 0.01 |
| Baker’s ratiob | ||||||||||
| Method I | 0.72 | 0.89 | 0.67 | 0.82 | 0.94 | 0.93 | 0.67 | 0.73 | 0.98 | |
| Method III | 0.95 | 0.99 | 0.90 | 0.97 | 0.96 | 0.96 | 0.88 | 0.93 | 0.96 | |
***
P ≤ 0.001, ** P ≤ 0.01, * P ≤ 0.05.
a
Natural log transformation; measured at harvest (130 DAP).
b
Baker's ratio of GCA to SCA variance, calculated as 2MSGCA : 2MSGCA + MSSCA, is reported for both Method I (F1s, reciprocal F1s, and parents) and Method III (F1s and reciprocal F1s only).