Variety sheet
UEB32642 Opal®
Fruit UEB32642
Origin
Topaz x Golden Delicious
Synonyms
n. a.
Agronomic Profile
Flowering: medium, diploid 
Vigour: medium 
Susceptibility: n. a. 
Productivity: Productivity strong, neigt nicht zu Alternanz, no preharvest fruit drop 
Harvest time: 0-2 Week after Golden Delicious 
Fruit
Size and shape: medium, wide globular-conoid 
Ground and overcolour: Ground colour yellow; Overcolour no cover colour 
Susceptibility to russeting: strong rustiness of the fruit 
Firmness of the pulp: 8,2-8,7 kg/cm ²at harvest 
Tendency to browning of pulp: no to little oxidation 
Sugar content: 12,6-14,1 °Brix at harvest 
Acid content: 5,9-7,2 g/L MA at harvest 
Total content of Polyphenols1: in the peel: 291,8 ± 90,4 mg Catechin/ 100 g FW; in the pulp: 80,4 ± 10,5 mg Catechin/ 100 g FW 
TAC1: in the peel: 302,5 ± 103 mg Trolox/ 100 g FW; in the pulp: 161 ± 18,6 mg Trolox/ 100 g FW 
Content of Anthocyanin2: n. a. 
Vitamin C1: in the peel: 18,2 ± 6,9 mg/100 g FW; in the pulp: 3,3 ± 1,0 mg/100 g FW 
Pectin1: in the pulp: 1,0 ± 0,5 g/100g FW 
Flavour: n. a. 
Storage: in cool store up to 3 Months 
Characteristics: tendency to bitter pit 
Juice production
Yield: yield low  
Stability of the colour: little oxidation after decanting 
Sugar content: 14,2 °Brix 
Acid content: 4,7 g/L MA 
pH: 3,82 
Total content of Polyphenols: 23,7 ± 0,6 mg Catechin/100 mL juice 
TAC: 32,3 ± 1,6 mg Trolox/100 mL juice 
Content of Anthocyanin2: n. a. 
Vitamin C: 0,00 ± 0,00 mg/L juice 

Photogallery


1 after two months of normal cool storage
2 only for red fleshed varieties