Sweet cherry
Variety: Otto (S)
Species: Prunus avium
Origin
| Breeder, Place | Dr. Hilmar Schwärzel, Müncheberg, Germany |
|---|---|
| Intellectual property | Klara Sommer |
| Parents | open pollination of Kordia |
| Crossing number | K 27, clone M 22 |
| Property rights | application for EU plant variety rights |
Blossom
| Blooming date | medium late to late, in some years very late |
|---|---|
| Fertility | self-sterile |
| S-allele, sterility group | S1 S3, group 2 |
| Pollinator | Carmen (S), PAPILLON ™ Pillango (S), Early Korvik (S), STARDUST ™ 13 N 07-70 (S), Walter (S), Kordia, Klara (S), Rubin, Henriette (S), KIR VULCANO ™ KSG 16 A (S), Irena (S), KIR LAMOUR ™ KSG 24 A (S), CERASINA ™ Final 12.1 (S) |
| Incompatible with | ADELISE ™ Masdel, SAMBA ™ Sumste (S), SATIN ™ Sumele (S), Areko (S), Regina |
Fruit
| Ripening time | late, 8.-9. cherry week, 3-7 days after 'Regina' |
|---|---|
| Scale, shape | large, 28-30 mm, 11-13 g, oblong heart-shaped with slight shoulders and obtuse apex, long to very long, robust green stalk |
| Colour | dark to black red at the first pick, intensely glossy, at full maturity deep black |
| Fruit flesh | black red, firm and crunchy, Durofel pressure 25: 80 at full maturity, juicy, slightly firm skin |
| Taste | aromatic-spicy with balanced acidity, powerful taste and long finish, just before maturity emphasized acidity, 18 Brix at full maturity |
| Cracking sensitivity | low |
| Storability | very good |
Tree
| Vigor | medium strong, semi-upright to widely spreading, pendulous fruit-wood, good branching, nearly without blind wood, sensitive to bacterial canker in juvenile phase |
|---|---|
| Crop load | ideal productivity |
Evaluation
Interesting variety that ripens directly after 'Regina'. The very attractive fruits have good size and convince especially with their high cracking resistance. Otto (S) is not prone to overcropping and is easy to pick because of its long stalks and the even distribution of the fruits. The high cracking resistance allows for a long picking season. To achieve ideal fruit and aroma qualities the fruits should ripen on the tree.