USDA ACCESSION NO.: 21457

SELECTION: Seedling Selection No. 8303-117 from a 1983 cross between tetraploid Hallertauer m.f. and a German aroma male made at Corvallis, Oregon.

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Liberty

PEDIGREE: 21397 x 64035M; tetraploid Hallertauer m.f. x Zattler Seedling

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

ORIGIN: Seedling 8303-117 of cross 8303

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., G.B. Nickerson, U. Gampert, and P.A. Whitney. Registration of Liberty Hop (Registration No. CV18, PI No. 558869). Crop Sci. 32. 1992 (in print).

Various annual reports of USDA hop research starting in 1985.

Annual reports to the Hop Research Council starting in 1986.

MATURITY: Medium early

LEAF COLOR: Green to dark green

SEX: Female

DISEASES: Downy Mildew: moderately resistant

Verticillium wilt: unknown, probably tolerant

Viruses: free of major hop viruses, such as Prunus and other strains of Necrotic Ringspot, Hop Latent, and American Hop Latent; slight infection by Hop Mosaic, generally symptomless.

VIGOR: Very good

YIELD: Good to very good, 1200-2000 kg/ha (1100-1780 lbs/A)

SIDEARM LENGTH: 12-30 inches

ALPHA ACIDS: 4-6% in Oregon, slightly lower in Washington

BETA ACIDS: 3.5%

COHUMULONE: 24-28%

STORAGE STABILITY: Fair to good (retained 66% of original alpha acids after 6 months room temperature storage)

OIL: 1.3 ml/100 g (average of 7 different samples); myrcene 46%, humulene 31%, no farnesene; H/C - 3.43

MAJOR TRAITS: Aroma and quality characteristics similar to imported noble aroma European hops (balanced alpha and beta acids content, moderately low cohumulone content, triploid, genetically sterile, 2n=3x=30, produces few seeds, even when grown in the presence of fertile diploid males.

OTHER INFORMATION: Adapted to Oregon and Washington hop growing areas, poorly adapted in southern Idaho. Six acres commercial production each in Oregon and Washington in 1991.



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