USDA ACCESSION NO.: 21455

SELECTION: Seedling selection from a 1983 cross between the colchicine-induced tetraploid female Hallertauer m.f. (USDA 21397) and the male breeding line USDA 19058M made at Corvallis, Oregon

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Mt. Hood

PEDIGREE: 21397 x 19058M; Tetraploid Hallertauer m.f. x Early Green-Unknown Seedling

PRIMARY SITE: USDA World Hop Cultivar Collection, OSU East Farm

ORIGIN: Seedling No. 8301-10 of cross 8301

DATE RECEIVED: 1983; USDA Accession No. assigned in 1985

METHOD RECEIVED: Seedling selection, USDA Accession No. assigned in 1985

AVAILABILITY: No restrictions

REFERENCES: Haunold, A, and G.B. Nickerson. Registration of Mt. Hood Hop (Registration No. 16, PI 535808). Crop Sci. 30:423. 1990.

Haunold, A. and G.B. Nickerson. Mt. Hood, a New American Noble Aroma Hop. American Society of Brewing Chemists Journal 48(3):115-118. 1990.

USDA-ARS Ann. Report and Data Summary 1985. p. 24.

Annual Reports to the Hop Research Council, 1986 to 1990.

MATURITY: Medium

LEAF COLOR: Green to light green

SEX: Female

DISEASES: Downy Mildew: moderately resistant

Verticillium wilt: unknown, probably tolerant or

Viruses: free of Apple and Cherry serotypes of Prunus Necrotic Ringspot, free of Hop Mosaic, Hop Latent, and American Hop Latent viruses.

Occasional yellow flecks on lower leaves, probably due to physiological factors.

VIGOR: Good to very good

YIELD: 1,400-2,200 kg/ha (1250-1960 lbs/acre)

SIDEARM LENGTH: 50-120 cm (20-40 inches)

ALPHA ACIDS: 5-7%

BETA ACIDS: 6-7.5%

COHUMULONE: 23%

STORAGE STABILITY: Fair to poor

OIL: 1.4 ml/100 g

MAJOR TRAITS: Similar to noble aroma European hops, low myrcene (below 50%), high humulene (26-36%), no farnesene. Ratio humulene/caryophyllene 2.5- 2.8.

OTHER INFORMATION: Triploid, 2n=3x=30, naturally seedless, even when grown in the presence of fertile diploid males. Adapted to Oregon and Washington hop growing areas. Not adapted to southern Idaho. 1991 production 950,000 lbs (867 acres). Total 1997 production was 1.12 million lbs.