USDA ACCESSION NO.: 62013
SELECTION: Seedling selection of cross 6185 made in 1961 at Corvallis, Oregon
PEDIGREE: 19120 x 58006M; Sunshine seedling 25 S x Utah 524 2
PRIMARY SITE: USDA World Hop Cultivar Collection, OSU East Farm
ORIGIN: Cross 6185 made in 1961 at Corvallis, Oregon
DATE RECEIVED: Selected and Accession No. assigned in 1962.
METHOD RECEIVED: Seedling selection
AVAILABILITY: Commercial cultivar, no restrictions.
Zimmermann, C. E., S. T. Likens, A. Haunold, C. E. Homer and D.
D. Roberts. Registration of Comet Hop (Registration No. 3). Crop Sci.
Schwartz, B. W. New American Hop Varieties. In: Steiner's Guide to American Hops. Book 2. S. S. Steiner, New York, NY 1977.
MATURITY: Medium late
LEAF COLOR: Light green early in the season, turning darker green as the season progresses.
DISEASES: Downy Mildew: susceptible
Verticillium wilt: resistant
Viruses: free of Prunus Necrotic Ringspot Virus and Hop Mosaic Virus.
POLLEN SHEDDING: Very good, 1700 to 2000 lbs per acre
SIDE ARM LENGTH: 24 40 inches
ALPHA ACIDS: 11.3% (8 year range: 9.4 to 12.4%)
BETA ACIDS: 4.6% (8 year range: 3.0 to 6.1%)
STORAGE STABILITY: Good to very good
OIL: 1.98 ml/100 g (8 year range: 1.40 to 3.31%)
MAJOR TRAITS: Relatively high alpha acids content; Wild American aroma that is objectionable to some brewers, highly resistant (perhaps immune) to Prunus Necrotic Ringspot virus infection, yellowish green leaf color early in the season.
OTHER INFORMATION: Released as high alpha hop primarily for production in Washington and Idaho. Acreage expanded to 635 acres in 1980 (1% of US production), but declined after 1981 following the release of super alpha hops. Comet today is no longer grown commercially.