USDA ACCESSION NO.: 61021
SELECTION: Developed from a German land race in the Tettnang area of southwestern Germany
CULTIVAR: Tettnanger (sometimes called Swiss Tettnanger); other names: Schwetzinger, Deutscher Fruehhopfen
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
Romanko, R. R. In: Steiner's Guide to American Hops, Book III. New
York, NY. S.S. Steiner Inc. 1986, p. 50.
H., and A. Kastner. Der Hopfen. Hopfenverlag Wolnzach, 1975, p. 34.
Various USDA Annual Reports starting in 1962.
LEAF COLOR: Medium green
DISEASES: Downy Mildew: moderately resistant
Verticillium Wilt: 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%)
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.