Table 2. Correlation coefficient (r) of environment specific BLUPs with all target population of environment (TPE) and environment-specific heritability (H2) based on the Cullis method [34] for fresh root yield (t/ha).
| Environment | r | H2 | Rank r | Rank H2 | Sum ranks |
|---|---|---|---|---|---|
| Ago-Owu19 | 0.73 | 0.80 | 1 | 2 | 3 |
| Ikenne18 | 0.69 | 0.82 | 2 | 1 | 3 |
| Ibadan19 | 0.68 | 0.73 | 4 | 5 | 9 |
| Ago-Owu18 | 0.56 | 0.74 | 9 | 4 | 13 |
| Ikenne20 | 0.67 | 0.68 | 5 | 8 | 13 |
| Onne19 | 0.67 | 0.69 | 6 | 7 | 13 |
| Ago-Owu20 | 0.68 | 0.61 | 3 | 11 | 14 |
| Mokwa18 | 0.47 | 0.74 | 12 | 3 | 15 |
| Ibadan20 | 0.61 | 0.51 | 7 | 15 | 22 |
| Umudike19 | 0.61 | 0.56 | 8 | 14 | 22 |
| Ibadan18 | 0.33 | 0.71 | 17 | 6 | 23 |
| Ikenne19 | 0.54 | 0.57 | 10 | 13 | 23 |
| Mokwa19 | 0.46 | 0.61 | 13 | 10 | 23 |
| Ubiaja20 | 0.42 | 0.62 | 15 | 9 | 24 |
| Otobi19 | 0.44 | 0.58 | 14 | 12 | 26 |
| Abuja20 | 0.49 | 0.27 | 11 | 16 | 27 |
| Onne20 | 0.40 | 0.26 | 16 | 17 | 33 |