ACCESSION No.: 21396

SELECTION: no information available

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Tolhurst

PEDIGREE: no information available

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

ORIGIN: Wye College, England

DATE RECEIVED: Spring 1982

METHOD RECEIVED: rhizomes

AVAILBILITY: no restrictions

REFERENCES: Neve, R.A. 1991. Hops. Chapman and Hall,New York, London

Various USDA Annual Reports for Hop Research starting in 1982

MATURITY: early to medium early

LEAF COLOR: medium green

SEX: female

DISEASES: Downy mildew: moderately resistant

Verticillium wilt: no information

Viruses: no information

VIGOR: poor in Corvallis test plots

YIELD: poor in Corvallis plots, averaging 300 to 700 lbs/acre

SIDE ARM LENGTH: 10 to 20 inches

ALPHA ACIDS: 2.2%

BETA ACIDS: 2.9%

COHUMULONE: 31%

STORAGE STABILITY: poor, retained about 49% of its original alpha acids after 6 months room temperature storage

OIL: 0.65 ml/100 g. Humulene 19.4%; caryophyllene 7.7%; myrcene 42.5%; farnesene 8.3%. H/C ratio = 2.55

MAJOR TRAITS: pleasant continental-type aroma, high farnesene in the oil

OTHER INFORMATION: This old English hop variety is no longer grown commercially.

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