USDA ACCESSION NO.: 61021

SELECTION: Developed from a German land race in the Tettnang area of southwestern Germany

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Tettnanger (sometimes called Swiss Tettnanger); other names: Schwetzinger, Deutscher Fruehhopfen

PEDIGREE: Unknown

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

ORIGIN: Probably clonal selection; obtained in 1961 from S. S. Steiner of Laupheim, Germany, via Parma Agricultural Experiment Station, Idaho (Dr. R. R. Romanko)

DATE RECEIVED: 1961

METHOD RECEIVED: Rhizomes

AVAILABILITY: No restrictions, commercial variety

REFERENCES: Romanko, R. R. In: Steiner's Guide to American Hops, Book III. New York, NY. S.S. Steiner Inc. 1986, p. 50.

Kohlmann, H., and A. Kastner. Der Hopfen. Hopfenverlag Wolnzach, 1975, p. 34.

Various USDA Annual Reports starting in 1962.

MATURITY: Early

LEAF COLOR: Medium green

SEX: Female

DISEASES: Downy Mildew: moderately resistant

Verticillium Wilt: unknown

Viruses: unknown

VIGOR: Good, especially early in the season, but poor in early to mid summer

YIELD: Low, 1000 1300 lbs/acre

SIDE ARM LENGTH: 12 36 inches

ALPHA ACIDS: 4.7% (9 year range 4.1 6.3%)

BETA ACIDS: 4.7% (9 year range 3.6 5.7%)

COHUMULONE: 22%

STORAGE STABILITY: Fair (retained 57% of original alpha acids after 6 months room temperature storage).

OIL: 0.66 ml/100 g (9 year range 0.42 1.13 ml/100 g)

MAJOR TRAITS: European noble aroma characteristics, alpha/beta ratio near 1; reddish hue on the main vine.

OTHER INFORMATION: Imported to the United States in substantial quantities because domestic production, which has increased in recent years, is insufficient to satisfy demand. Exported from Germany to many countries around the world for premium prices. German production is insufficient to meet increasing demands worldwide. In 1988 2800 acres of Tettnangs were grown primarily in northern Idaho, the Yakima Valley of Washington, and the Willamette Valley of Oregon. (Note: This hop became known as US Tettnanger and was originally a mixture with Fuggle. In recent years, most of US Tettnanger was Fuggle. Anheuser Busch dropped US Tettnanger in 1997/98).The name Swiss Tettnanger refers to the fact that this hop clone was originally brought to the U.S. from Switzerland (near St. Gallen across Lake Constance from the major Tettnang hop growing area in Germany). It is very similar to USDA 21015 which was introduced as a clonal selection in 1970.


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