Sweet cherry
Variety: Irena (S)
Species: Prunus avium
Origin
| Breeder, Place | Blazek, Holovousy, Czech Republic |
|---|---|
| Intellectual property | Artevos, Germany |
| Parents | Kordia x M. Reward |
| Crossing number | HL 13 822 |
| Property rights | registered for EU plant variety rights |
Blossom
| Blooming date | late |
|---|---|
| Fertility | self-sterile |
| S-allele, sterility group | S4 S6, group 17 |
| Pollinator | Carmen (S), Early Korvik (S), PAPILLON ™ Pillangó (S), Walter (S), Klara (S), Kordia, STARDUST ™ 13 N 07-70 (S), Rubin, Henriette (S), Areko (S), KIR VULCANO ™ 16 A (S), Regina, KIR LAMOUR ™ KSG 03 A (S), CERASINA ™ Final 12.1 (S) |
Fruit
| Ripening time | late, 7. cherry week |
|---|---|
| Scale, shape | medium to large, 27-30 mm, 11-13 g, heart-shaped with slight shoulders, long to very long stalk |
| Colour | dark to black red, very shiny |
| Fruit flesh | dark to black red, medium firm, Durofel pressure 25: 70-75, firm skin, soft flesh, juicy |
| Taste | emphasized acidity just before maturity, at full maturity mild taste with balanced acidity |
| Cracking sensitivity | very low to low, tends to crack only around the stalk cavity at full maturity after heavy rainfall |
Tree
| Vigour | weak to medium strong, strong central leader, weak lateral branches, at mature stage spreading to pendulous, very good branching, thorough pruning of pendulous bearing wood necessary, healthy and dark green foliage |
|---|---|
| Crop load | high to very high, fruits are hanging very densely without clusters, good picking rate because of the long stalks |
Evaluation
This shortly before 'Regina' ripening cherry yields well from the beginning. When overcropping the flavour and firmness dissipates. The acid content of the fruits determines the possible harvest date.
Irena (S) is well suited as a pollinator for 'Regina'.