USDA ACCESSION NO.: 21238:

SELECTION: Selected by Dr. Tone Wagner at the Hop Research Institute Zalec, Slovenia, in the mid to late 1970's

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Blisk

PEDIGREE: Tetraploid Atlas x Yugoslavian male 1/9. The female parent was developed from diploid Atlas (USDA 21052) by colchicine treatment at Zalec, Slovenia

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

ORIGIN: Seedling selection

DATE RECEIVED: April 3, 1980

METHOD RECEIVED: Rhizomes

AVAILABILITY: No restrictions, commercial cultivar

REFERENCES: USDA-ARS Annual Report of Hop Investigations for 1980, pp. 41, 43.

Kralj, D., and Tone Wagner. New Slovene hop cultivars, Blisk, Bobek, and Buket. Institute for Hop and Brewing Research, Zalec, 1980 (mimeographed report).

Kralj, D. Hop Breeding in Slovenia (in German). Report presented at the Scientific Commission, IHB, Novi Sad, Yugoslavia, 1984.

J. Kisgeci, A. Mijavek, M. Acimovic, P. Spevak, and N. Vucic. 1984. Hmeljarstvo. pp. 126-138. Inst. za Ratarstvo i Povrtarstvo, Novi Sad.

MATURITY: Medium to medium late

LEAF COLOR: Dark green

SEX: Female

DISEASES: Downy Mildew: resistant

Verticillium wilt: unknown, probably tolerant or resistant

Viruses: unknown

VIGOR: Very good

YIELD: 1750 lbs/acre (10-year range 1200 to 2900 lbs/acre)

SIDEARM LENGTH: 20-30 inches

ALPHA ACIDS: 11.5% (10-year range 9.7 to 14.1%)

BETA ACIDS: 4% (10-year range 3.3 to 4.8%)

COHUMULONE: 33%; colupulone 62%

STORAGE STABILITY: Poor (retained 45% of original alpha acids after 6 months room temperature storage)

OIL: 2.01 ml/100 g (10-year range 1.24-3.24 ml/100 g); H/C - 2.80; humulene 11.5%

MAJOR TRAITS: Triploid, 2n=30; pleasant aroma, high yield potential

OTHER INFORMATION: Developed with the intention to combine high alpha and aroma in a single cultivar. Not grown commercially on any significant acreage. Not grown commercially in the United States.

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