Rubus subgenus Rubus Watson 'Arapaho'
Originated from a cross of A-631 x A-883
Variety denomination - 'Arapaho', tested as A-1536
Plants are thornless
Bushes have erect canes
Fruit weight is 5 g
Berries have a conical shape
Fruiting habit - floricane fruiting (summer-bearing)
Flowering on floricanes starts in the fourth week of April
Ripening date (regular) - first week of June
Productivity is 4 kg per plant
Soluble solids - 9.1%
Cold hardiness is good
Heat tolerance is low
Country of origin - United States
Patent Plant 8,510 dated December 19, 1993
Current status - obsolete or rarely used
Recommended replacement - Caddo
A notable feature of Arapaho is its earliness of fruit ripening. It ripens about 10 days earlier than Navaho. The fruiting period of blackberry Arapaho is concentrated into 4 weeks in contrast to the usual 5 to 6 week fruiting period of Navaho.
Arapaho is more prolific in producing primocanes from roots than Navaho. Plants have good resistance to cold injury at temperatures as low as minus 24 C. No orange rust and rosette has been observed on Arapaho when grown in areas of high inoculum. Arapaho can complement Navaho in providing a long harvest season for high-quality thornless blackberries.
This variety is a complement to Navaho, expand the harvest period for high-quality thornless blackberries. Arapaho fruit are short-conic in shape and have bright glossy black color. Fruit are firm, similar to Navaho. The fruit is short conic in shape, bright glossy black in color and medium in size. The fruit is firm at maturity, rating slightly less firm than the Navaho variety but more firm than the Shawnee variety. Storage quality of the fruit is comparable to the Navaho variety and superior to the Shawnee variety. Fruit clusters are medium-large, cymose, and are borne on the periphery of the plant canopy, providing easy access to harvest. Flower fertility is high and clusters are well filled.
An important positive characteristic of Arapaho variety is its small seed size. Seeds are significantly smaller than those of Navaho. The flavor is
sweet and mildly subacid, with a prominent aroma reminiscent of wild blackberries.
|First||June 5||May 28||June 14||June 3|
|Last||July 10||June 23||July 25||July 1|
|Fruit (rating scale of 1 to 10 where 10 is the best)|
|Seed weight, mg||4.0||2.1||3.6||2.7|
|Soluble solids, %||8.7||8.3||10.8||9.1|
|Plant (rating scale of 1 to 10 where 10 is the best)|
|Cultivar||Yield, kg/ha||Berry weight, g|
Download Arapaho patent US00PP08510P