USDA ACCESSION NO.: 21179

SELECTION:
no information

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Hersbrucker E (obtained from England)

PEDIGREE: old German landrace

PRIMARY SITE: USDA/OSU Hop Research Farm, East Farm, Corvallis, OR

ORIGIN: Wye College, England

DATE RECEIVED: spring 1977

METHOD RECEIVED: rhizomes

AVAILBILITY: no restrictions

REFERENCES: Annual Report of Hop Research 1977, and later years

MATURITY: late

LEAF COLOR: dark green

SEX: female

DISEASES: Downy mildew: moderately susceptible

Powdery mildew: no information

Verticillium wilt: resdistant

Viruses: free of PNRV and ApMV at time of receipt

VIGOR: very good

YIELD: good to very good

SIDE ARM LENGTH: 20 to 40 inches, sometimes longer

ALPHA ACIDS: 4 - 6%

BETA ACIDS: 5 - 7%

COHUMULONE: 22 - 24%

STORAGE STABILITY: fair to poor, retained 58% of original alpha acids after 6 months room temperature storage

OIL: 0.63 ml/100 g. Humulene 29%; caryophyllene 9%; myrcene 46%; farnesene trace.

MAJOR TRAITS: high yield potential, pleasant European aroma characeristics, variable yield performance in Oregon commercial plots.

OTHER INFORMATION: Susceptible to downy mildew in Oregon commercial plots. Alpha acids variable and frequently on the low side. Poor storage stability of the soft resins. This hop , originally grown only in the Hersbruck mountains north of Munich, was planted extensively in the late 1970s in Germany to replace Hallertauer mittelfrueh, because of its higher resistance to verticillium wilt. The acreage has now (mid 1990s) dropped significantly because of newer German aroma hops with higher alpha acids potential.

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