‘IPR 102’ is a coffee cultivar derivative from a cross between “Catuaí” and “Icatu”. ‘IPR 102’ is a dwarf cultivar (medium size) with high rusticity, late ripening cycle, and it is resistant to bacterial halo blight and partial resistant to coffee leaf rust.
Key words:
Coffea arabica; breeding; Pseudomonas syringae pv. garcae; rust resistance.
| Cultivar1 | Environments2 | Mandaguari (2.5 x 0.5 m)3 | Mandaguari (3 x 0.5 m)3 | Londrina (2.5 x 0.5 m)4 | Itaguajé (3 x 0.5 m)5 | General mean | %6 |
|---|---|---|---|---|---|---|
| IPR 102 | 65.62 a | 66.71 a | 69.61 a | 57.86 b | 64.95 | 132 |
| IPR 103 | 48.90 ab | 44.20 b | 71.26 a | 78.97 a | 60.83 | 123 |
| Catuaí V81 | 42.26 b | 45.55 b | 60.23 b | 49.45 c | 49.37 | 100 |
| IAPAR 59 | 39.81 b | 52.48 ab | 59.62 b | 50.22 c | 50.53 | 102 |
| General mean | 49.15 | 52.24 | 65.18 | 59.13 | 56.43 | |
| CV (%) | 16.30 | 9.72 | 3.57 | 3.86 | ||
| Experiment | |||||||
|---|---|---|---|---|---|---|---|
| 1 1 | 2 2 | 3 3 | |||||
| Cultivar 4 | BHB 5 | Cultivar 4 | BHB 5 | Cultivar 4 | BHB 5 | ||
| IPR 99 | 4.50 a | IPR 100 | 4.33 a | Catuaí V81 | 4.20 a | ||
| Catuaí V81 | 4.47 a | Catuaí V81 | 3.95 a | IPR 102 | 1.07 b | ||
| IPR 100 | 4.07 a | IPR 99 | 3.37 a | ||||
| IPR 102 | 1.17 b | IPR 102 | 1.33 b | ||||
| General mean | 3.55 | General mean | 3.25 | General mean | 2.63 | ||
| CV (%) | 8.05 | CV (%) | 17.61 | CV (%) | 3.10 | ||
| Traits | Descriptions |
|---|---|
| Size (tree height) | Medium (~ “Catuaí”) |
| Canopy radius | Medium (~ “Catuaí”) |
| Canopy architecture | Cylindrical (~ “Catuaí”) |
| Internode lenght | Medium (~ “Catuaí”) |
| Secondary plagiotropic branching | High (~ “Catuaí”) |
| Young leaf color | Green and Bronze |
| Leaf size | Medium (~ “Mundo Novo”) |
| Undulation of the leaf margin | Medium wavy (~ “Mundo Novo”) |
| Color of ripe fruits | Red |
| Fruit shape | Oblong (~ “Mundo Novo”) |
| Grain lenght | Between short (~ “Catuaí”) and medium (~ “Mundo Novo”) |
| Grain width | Between medium (~ “Mundo Novo”) and large (~ “Catuaí”) |
| Ripening cycle | Late (~ “Catuaí”) |
| Resistance to rust | Moderate susceptible to moderate resistant |
| Resistance to bacterial blight | Complete resistant to populations evaluated |
| Resistance to nematodes | Susceptible to Meloidogyne paranaensis but still not evaluated for other nematodes |
| Coffee quality | Similar to “Catuaí” |
