USDA ACCESSION NO.: 21052

SELECTION: Seedling selection No. 18/135 made in the early 1970's at the Hop Research Institute, Zalec, Slovenia, Yugoslavia, by Dr. Tone Wagner

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Atlas

PEDIGREE: 19001 x 21087M; Brewer's Gold x Yugoslavian male 3/3M

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

ORIGIN: Hop Research Institute Zalec, Yugoslavia

DATE RECEIVED: 1972; USDA Accession No. assigned in 1972

METHOD RECEIVED: Rhizomes

AVAILABILITY: No restrictions

REFERENCES: Wagner, Tone. Autochthonous hop in Yugoslavia and its usability for breeding new varieties in comparison with the hop varieties grown at present. Final Research Report, USDA-Yugoslavia Cooperative Project E30-CR-90/FG Yu-186, May 1974, pp. 255-258.

Wagner, Dr. Tone, and Dragica Kralj. Properties of Slovenian aroma hop varieties and new breeding lines. Talk presented to the 27th Congress of the European Union of Hop Trade, Dubrovnik, Yugoslavia, May 21-22 1979; Proceedings printed in German and English.

MATURITY: Medium late to late

LEAF COLOR: Green to moderately light green

SEX: Female, but occasional sterile male flowers develop

DISEASES: Downy Mildew: moderately resistant

Verticillium wilt: unknown, but probably resistant

Viruses: infected with Apple and Cherry strain of Prunus

Necrotic Ringspot virus, Hop Mosaic virus; shows conspicuous yellow flecking on lower leaves

VIGOR: Fair to good

YIELD: Poor to good

SIDEARM LENGTH: 12-24 inches

ALPHA ACIDS: 9-11%

BETA ACIDS: 4%

COHUMULONE: 36%

STORAGE STABILITY: Poor (retained about 50% of the original alpha acids after 6 months room temperature storage)

OIL: 1.3-1.6 ml/100 g; ratio humulene/caryophyllene 1.8-2.1

MAJOR TRAITS: Moderately high alpha acids content

OTHER INFORMATION: This hop together with its sister selections Ahil (USDA 21050) and Apolon (USDA 21051) and a related selection, Aurora (21053), entered the hop trade in the 1970's as Superstyrian hops. The implication was that they be similar to Styrian (Fuggle-type) hops but higher in alpha acids content. In reality they are Brewer's Gold seedlings, and their quality characteristics are different from the true Styrian (USDA 21049, Savinski Golding). This has caused considerable confusion in the world hop trade. Of the three sister selections Atlas had the greatest expansion in the late 1970's in Yugoslavia (over 400 acres). Acreage has since been reduced somewhat in favor of the old established Savinski (Styrian) Golding (USDA 21049).