USDA ACCESSION NO.: 21053
SELECTION: Seedling Selection No. 12/61 made at the Hop Research
Institute Zalec, Yugoslavia, by Dr. Tone Wagner in the early 1970's
PEDIGREE: 64107 x TG; Northern Brewer x Yugoslavian wild male TG growing near the institute
PRIMARY SITE: USDA World Hop Cultivar Collection, OSU East Farm, Corvallis
ORIGIN: Hop Research Institute Zalec, Yugoslavia (now Slovenia)
DATE RECEIVED: 1972; Accession No. assigned in 1972
METHOD RECEIVED: Rhizomes
AVAILABILITY: No restrictions, commercial cultivar
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. 256-267.
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 early to medium late
LEAF COLOR: Green to moderately dark green
DISEASES: Downy Mildew: moderately resistant
Verticillium wilt: unknown, probably resistant or tolerant
VIGOR: Good to very good
YIELD: Good to very good
SIDEARM LENGTH: 12-30 inches
ALPHA ACIDS: 10-12%
BETA ACIDS: 4-5%
STORAGE STABILITY: Very good (retained 70-75% of original alpha acids after 6 weeks room temperature storage)
OIL: 1.1-1.8 ml/100 g; ratio humulene/caryophyllene 3.27
MAJOR TRAITS: High alpha acids content, European aroma, good storage stability.
OTHER INFORMATION: Similar in quality characteristics to Northern Brewer; this hop achieved the largest acreage of all the four Superstyrians (over 1000 acres) released in the early 1970's; Aurora, together with Ahil (USDA 21050), Apolon (USDA 21051) and Atlas (USDA 21052) entered the hop trade in the early 1970's as Superstyrian hop similar to Styrian Golding (USDA 21049). All four, however, have higher alpha and different aroma properties than Styrian which led to confusion. Aurora seems to be the best of the four in terms of yield potential and aroma. Acreage has been reduced somewhat in recent years in favor of the old established Savinski (Styrian) Golding (USDA 21049).
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