Table 2.
Tree size of 19 late-season sweet orange selections grafted onto Rangpur lime rootstock and determined in the 2019 season. Guairaçá, state of Paraná, Brazil.
| Sweet orange selection | Tree height (m) | Canopy diameter (m) | Canopy volume (m3) | Rootstock trunk diameter1 (cm) | Scion trunk diameter1 (cm) | Trunk diameter index2 |
|---|---|---|---|---|---|---|
| Whit’s Late Valencia | 4.18 a3 | 4.12 b | 37.2 c | 17.8 b | 15.6 b | 0.88 c |
| Cutter Valencia | 4.03 b | 3.96 c | 33.3 d | 17.2 b | 14.5 c | 0.86 d |
| Berry Valencia | 4.17 a | 4.00 c | 35.1 d | 18.6 a | 15.4 b | 0.83 d |
| Frost Valencia | 4.40 a | 4.39 a | 44.3 b | 19.1 a | 17.0 a | 0.89 c |
| Valencia Mutação | 4.08 b | 4.38 a | 41.0 c | 15.4 c | 13.2 d | 0.85 d |
| Valencia IAC | 3.89 b | 3.87 c | 30.7 d | 16.4 c | 14.5 c | 0.89 c |
| Olinda Valencia | 4.50 a | 4.56 a | 49.3 a | 19.1 a | 15.8 b | 0.83 d |
| Chafeei Late Valencia | 4.30 a | 4.22 b | 40.1 c | 18.4 a | 16.7 a | 0.91 c |
| Campbell 479 Valencia | 4.24 a | 3.72 d | 30.7 d | 16.7 c | 14.5 c | 0.87 c |
| Campbell 294 Valencia | 4.03 b | 3.89 c | 31.9 d | 17.1 b | 13.5 d | 0.79 d |
| Valencia Late 161 | 3.79 c | 3.89 c | 30.0 d | 16.5 c | 15.4 b | 0.93 b |
| Valencia Late Fla. | 4.13 a | 3.83 c | 31.7 d | 17.4 b | 15.5 b | 0.89 c |
| Valencia #121 | 4.27 a | 4.39 a | 43.1 b | 18.1 b | 15.7 b | 0.87 c |
| Charmute de Brotas | 3.94 b | 4.10 b | 34.6 d | 16.2 c | 14.3 c | 0.88 c |
| Natal África do Sul | 3.98 b | 4.08 b | 34.7 d | 16.2 c | 14.5 c | 0.89 c |
| Natal IAC | 3.56 c | 3.74 d | 26.2 e | 15.9 c | 13.9 c | 0.87 c |
| Natal Murcha | 3.91 b | 3.65 d | 27.3 e | 14.9 d | 13.6 d | 0.91 c |
| Folha Murcha IAC | 3.95 b | 3.56 d | 26.2 e | 14.1 d | 13.7 d | 0.97 a |
| IPR Folha Murcha | 3.81 c | 3.68 d | 27.1 e | 13.2 d | 12.2 e | 0.92 b |
| CV (%) | 3.88 | 3.66 | 8.28 | 5.09 | 4.95 | 3.04 |
| F value | 6.34*** | 11.53*** | 15.95*** | 10.59*** | 8.54*** | 7.02*** |
1
Trunk diameters were based on trunk circumference measurements, 10 cm above and 10 cm below the graft union.
2
Expressed as the ratio between scion and rootstock trunk diameters.
3
Means followed by the same letter in the column belong to the same group according to the Scott-Knott’s test. Significance level: ***p ≤ 0.001.