USDA ACCESSION No.: 21673

SELECTION: no specific information available; this hop is 42% Hallertauer mittelfrueh; 13% Saazer; 22% German wild hop; remainder unknown.

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Hersbrucker Pure

PEDIGREE: German sel. 73/10/16 x German male sel. 78/18/145

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

ORIGIN: German Institute for Hop Research, Huell, German

DATE RECEIVED: Spring 1992

METHOD RECEIVED: rhizomes

AVAILBILITY: no restrictions, commercial cultivar

REFERENCES: Annual USDA reports for hop research starting in 1992

German Society for Hop Research, Annual Reports starting mid-1980s

MATURITY: medium

LEAF COLOR: dark green

SEX: female

DISEASES: Downy mildew: resistant

Powdery mildew: moderately resdistant to moderately susceptible

Verticillium wilt: resistant

Viruses: free of all 5 major hop viruses when received at Corvallis

VIGOR: fair to good

YIELD: fair to poor

SIDE ARM LENGTH: 12 to 20 inches

ALPHA ACIDS: 5 - 6%

BETA ACIDS: 2 - 3%

COHUMULONE: 20 to 28%

STORAGE STABILITY: good, retained an average of 71% of original alpha acids after 6 months room temperature storage

OIL: 1 ml/100 grams ( 3 year range: 0.6 to 1.2 ml/100 g); myrcene 50.0%; humulene 10.2%; caryophyllene 4.4%; farnesene 0.2%. H/C ratio = 2.30

MAJOR TRAITS: pleasant continental aroma

OTHER INFORMATION: this hop is a diploid, 2n = 20; it was originally tested as a replacement for Hersbrucker. However, the major sponsor of the testing program (Anheuser Busch Inc.) lost interest in Hersbrucker and thus, this new selection never caught on.

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