Developed
PRE 1920.
England, United Kingdom
Comment: USDA ACCESSION NO.: 64100
SELECTION: Seedling selection from a cross made at Wye College, England, before 1920
GENUS: Humulus
SPECIES: lupulus
CULTIVAR: Bullion
PEDIGREE: Wild Manitoba BB1 x OR (open pollinated)
PRIMARY SITE: USDA World Hop Cultivar Collection, OSU East Farm
ORIGIN: Cross made by Professor E. S. Salmon at Wye College, England, before 1920. Seedling was raised in 1919 from open pollinated seed collected on the female BB1 in the hop nursery at Wye College, England. BB1 was obtained in 1916 as a cutting from a wild hop growing at Morden, Manitoba.
DATE RECEIVED: 1964
METHOD RECEIVED: Rhizomes, from Roger Kerr, Keizer, Oregon, who obtained it via S. S. Steiner Co. from England.
AVAILABILITY: No restrictions, commercial cultivar
REFERENCES: Salmon, E. S., Bullion hop, a new variety. Journal, South East Agricultural College, Wye, Kent, England 42:47 52. 1938.
Burgess, A. H. Hops. Interscience Publishers, New York, 1964, p. 46.
Romanko, R. R. In Steiner's Guide to American Hops. S. S. Steiner Inc. New York 1973, p. 20 21.
MATURITY: Medium early
LEAF COLOR: Dark green
SEX: Female, occasional sterile male flowers in certain years.
DISEASES: Downy Mildew: moderately resistant
Verticillium wilt: resistant
Viruses: infected with all major hop viruses
VIGOR: Excellent
YIELD: High, 2000 to 2400 lbs/acre
SIDE ARM LENGTH: 20 40 inches
ALPHA ACIDS: 10.0% (10 year range: 6.7 to 12.9%)
BETA ACIDS: 5.4% (10 year range: 3.7 to 9.1%)
COHUMULONE: 39%
STORAGE STABILITY: Poor
OIL: 1.65 ml/100 g (10 year range: 1.14 to 2.70)
MAJOR TRAITS: Identical to USDA 21056
OTHER INFORMATION: Identical to USDA 21056 but slightly lower alpha acids content due to virus infection. This hop, a major U.S. hop variety since the mid-1940s, was discontinued from commercial U.S. production in 1985 after the advent of super-alpha hops with better storage stability and higher alpha acids content.