USDA ACCESSION NO.: 21039
SELECTION: Bud sport from Shinshuwase (USDA 60042)
CULTIVAR: Golden Star
PEDIGREE: Saazer x White Vine-OP; selected by Dr. Y. Mori, Sapporo Brewery, Japan, from Shinshuwase
PRIMARY SITE: USDA World Hop Cultivar Collection, OSU East Farm
ORIGIN: Bud sport
DATE RECEIVED: 1971
METHOD RECEIVED: Rhizomes
AVAILABILITY: No restrictions, commercial variety
REFERENCES: USDA-ARS Annual Report of Hop Investigations for 1971, pp. 13-14.
Hop obtained from Professor Murayama, Toshoku Ltd., Nihonbashi, Tokyo, Japan.
Other references: Gene Pools of Hop Countries, T. Wagner, ed. 1978, p. 48.
LEAF COLOR: Light green
DISEASES: Downy Mildew: resistant
Verticillium Wilt: unknown
Viruses: infected with Prunus Necrotic Ringspot Virus (both apple and cherry strains), Hop Latent Virus,
American Hop Latent Virus, but free of Hop Mosaic Virus
VIGOR: Very good
YIELD: High, 1600-2000 lbs/acre
SIDE ARM LENGTH: 20-36 inches
ALPHA ACIDS: 5.4% (5-year range 4.4-6.7%)
BETA ACIDS: 4.6 (5-year range 3.8-5.5%)
STORAGE STABILITY: Good to fair (retained 64% of original alpha acids after 6 months room temperature storage
OIL: 0.63 ml/100 g (5-year range 0.45-1.0 ml). Humulene 12.5%; Caryophyllene 5.2%; myrcene 57.1%; no farnesene. H/C ratio = 2.43
MAJOR TRAITS: Yellowish light green leaf color, particularly at the tip of the leaves. Nearly identical to Shinshuwase (USDA 60042).
OTHER INFORMATION: This hop is grown commercially only in Japan as an aroma hop. It is very difficult to pick and shatters easily, particularly when grown seeded.