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.