Details for: PI 684720, Humulus lupulus L. var. lupulus, 'Spalter'

PRE 1975.
Germany
Comment: USDA ACCESSION NO.: 21186 SELECTION: Selected in the Spalt area of Germany from an old land race GENUS: Humulus SPECIES: lupulus CULTIVAR: Spalter PEDIGREE: Unknown PRIMARY SITE: USDA-ARS World Hop Cultivar Collection, OSU East Farm, Corvallis ORIGIN: Probably clonal selection, but exact origin is unknown DATE RECEIVED: Spring 1986 METHOD RECEIVED: Rhizomes AVAILABILITY: No restrictions, commercial variety REFERENCES: USDA-ARS Annual Report for Hop Investigations for 1978, pp. 38, 39. Kohlmann H., and A. Kastner. Der Hopfen. Hopfenverlag Wolnzach, 1975, p. 34. MATURITY: Early LEAF COLOR: Medium green SEX: Female DISEASES: Downy Mildew: moderately resistant Verticillium Wilt: unknown Viruses: unknown VIGOR: Poor YIELD: Low, under 1000 lbs/acre SIDE ARM LENGTH: 6-15 inches ALPHA ACIDS: 5.7% (5-year range: 3.6-7.5%) BETA ACIDS: 4.6% (5-year range: 3.0-6.2%) COHUMULONE: 23% (5-year range: 20-25%) STORAGE STABILITY: Fair to poor, retained 49% of original alpha acids after 6 months room temperature storage OIL: 0.62 ml/100 g (5-year range 0.31-1.03) MAJOR TRAITS: Pleasant European noble aroma characteristics. OTHER INFORMATION: Grown almost exclusively in the Spalt area of West Germany; highly priced by certain brewers for its noble aroma characteristics; production is insufficient to satisfy demand; (1997 production: 421.189 lbs on 459 acres; not grown commercially in the United States because of low yields. This hop is generally considered to be part of the Saaz group of varieties, related to Tettnanger and Saazer. Its oil contains small amounts of farnesene, but has a high H/C ratio (3.43 average).