Rubus subgenus Rubus 'Siskiyou'
Originated from a cross of ORUS 2027 x ORUS 1826
Variety denomination - 'Siskiyou', tested as ORUS 830-4
Plants are thornless
Bushes have trailing canes
Fruit weight is 7 g
Berries have a rounded shape
Fruiting habit - floricane fruiting (summer-bearing)
Flowering on floricanes starts in the fourth week of May
Harvesting begins in the first week of July
Productivity is 11000 kg from ha
Soluble solids - 11.4%
Acidity - 1.5%
Cold hardiness is moderate
Heat tolerance is moderate
Country of origin - United States
Current status - obsolete or rarely used
Siskiyou (ORUS 830-4) is early, large-fruited, stress-tolerant, and is a dual purpose berry for the fresh and processed market. Generally, trailing blackberries, such as Marion, Olallie, Boysen and Waldo, are grown in mild climates where winter temperatures do not fall below minus 17 C and they usually have very poor fruit quality if the fruit ripen when daytime temperatures are higher than 32 C. Siskiyou was widely adapted by trailing blackberry standards.
The average fruit weight for a season is about 8 g. The fruit are cylindrical and blocky. Set of the drupelets at the tip of Siskiyou fruit is not consistent. The primary fruiting season of Siskiyou is similar to that of Black Butte, it ripens its first fruit at the beginning of July. The duration of harvest season is about 30 days. Siskiyou has excellent fresh flavor but is not as strongly aromatic as Marion. Siskiyou can be mechanically harvested.
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