USDA ACCESSION NO.: 21227
SELECTION: Developed from a seedling selection of Northern Brewer at the German Institute for Hop Research Huell near Wolnzach, Germany.
PEDIGREE: Northern Brewer (USDA 64107) x 63/5/27 (a German male)
PRIMARY SITE: USDA World Hop Cultivar Collection, OSU East Farm
ORIGIN: Seedling selection made at Hall, West Germany. Heat therapy and meristem tip culture at Hall.
DATE RECEIVED: Spring 1980
METHOD RECEIVED: Rhizomes
AVAILABILITY: No restrictions, commercial cultivar
REFERENCES: Wagner, Tone, editor. Gene pool of Hop Countries, Zalec, July 1978, p. 35.
Kohlmann, H. The new hop variety Perle. Mimeographed handout. German Society for Hop Research, Wolnzach, August 30, 1978.
Gmelch, F. Problems in hop breeding (in German). Hopfenrundschau 36(8):141-146. 1985.
MATURITY: Midseason in Germany, early in U.S.
LEAF COLOR: Light green
DISEASES: Downy Mildew: resistant
Verticillium Wilt: resistant
Powdery Mildew: moderately susceptible
Viruses: free of all hop viruses, except hop latent virus
VIGOR: Very good
YIELD: Good to very good, 1500-1900 lbs/A
SIDE ARM LENGTH: 24-30 inches
ALPHA ACIDS: 8-9% in Germany, up to 11% in U.S. (5 yr. U.S. range: 7.9 to 12.9%)
BETA ACIDS: 4-5% in U.S., 8% in Germany (5 yr. U.S. range: 2.9 to 5.0%)
STORAGE STABILITY: Very good
OIL: 0.6-1.2 ml/100 9, no farnesene
MAJOR TRAITS: Aroma hop considered by some to be comparable to Hallertauer mittelfrueh, moderately high alpha acids content, downy mildew resistant. Early maturity in Oregon (about Aug. 20).
OTHER INFORMATION: U.S. and Japanese breweries indicated that Perle is not a substitute for Hallertauer mittelfueher. Moderate acreage expansion in U.S. as a higher alpha/aroma hop for certain brewery blends. 1997 production: 792,400 lbs (about equally divided between Oregon and Washington)