USDA ACCESSION NO.: 21056
SELECTION: Heat treated meristem tip culture of Bullion, USDA 64100
CULTIVAR: Bullion 10A
PEDIGREE: Wild Manitoba BB1 x OP (open pollinated)
PRIMARY SITE: USDA World Hop Cultivar Collection, OSU East Farm
ORIGIN: Developed from Bullion (USDA 64100) through heat treatment and meristem tip culture at Prosser, Washington. Original Bullion was developed at Wye College, England, by Professor Salmon and released in 1938.
DATE RECEIVED: 1972
METHOD RECEIVED: Rooted softwood cuttings
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
DISEASES: Downy mildew: moderately resistant
Verticillium wilt: resistant
Viruses: free of prunus and apple mosaic virus
YIELD: High, 2000-2500 lbs/acre
SIDE ARM LENGTH: 20-40 inches
ALPHA ACIDS: 10.7% (10 year range: 8.0 to 13.8%)
BETA ACIDS: 5.2% (10 year range: 2.8 to 6.9%)
STORAGE STABILITY: Poor
OIL: 1.55 ml/100 g (10 year range: 0.58 to 2.50)
MAJOR TRAITS: Moderately high alpha-acids content, extract hop, good vigor, high yield potential, poor storage stability
OTHER INFORMATION: Medium to small but heavy cones; tips of bracts and bracteoles curved upwards. Discontinued from commercial U.S. production in 1985.