USDA ACCESSION No.: 21517

SELECTION: no specific information available

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Hersbrucker red-stem

PEDIGREE: old German landrace, no other information available

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

ORIGIN: Hop Research Institute, Huell, Germany

DATE RECEIVED: spring 1988

METHOD RECEIVED: rhizomes

AVAILBILITY: no restrictions

REFERENCES: 1988 Annual Report for Hop Research, USDA/ARS and later years

MATURITY: late

LEAF COLOR: dark green

SEX: female

DISEASES: Downy mildew: moderately susceptible

Powdery mildew: non information

Verticillium Wilt: resistant

Viruses: free of major hop viruses when received at Corvallis

VIGOR: good

YIELD: good, but variable

SIDE ARM LENGTH: 20 to 40 inches

ALPHA ACIDS: 5 - 6%

BETA ACIDS: 5 - 6%

COHUMULONE: 18%

STORAGE STABILITY: fair, retained 60% of original alpha acids after 6 months room temperature storage

OIL: 1.20 ml/100 g. Humulene 10%; caryophyllene 9%; myrcene 55%; Farnesene trace: H/C ratio = 1.75

MAJOR TRAITS: Pleasant European aroma characteristics

OTHER INFORMATION: This hop is a clonal selection of the old German landrace Hersbrucker, but is thought to have slighly higher alpha acids potential. It is virtually identical to USDA 21514, 21515, 21516, and 21518, except that the main stems seem to have a slightly more reddish coloration, hence the name. There is no difference in brewing performance. Hersburcker was planted extensively in Germany in the mid 1980s to replace the wilt susceptible Hallertauer mittelfrueh. It has now (late 1990s) been largely replaced by newer German aroma hops (Hallertauer Tradition and Spalter Select) which have higher alpha acids potential.

Copyright ©2012 Oregon State University
Disclaimer
For question, contact Dr. Shaun Townsend