SELECTION: Seedling selection made at the Kirin Brewery Hop Research Farm, Japan

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Kitamidori

PEDIGREE: Seedling C79-27-01 x Seedling C79-64-110

PRIMARY SITE: USDA/OSU Hop Research Farm, Corvallis, OR

ORIGIN: Kirirn Brewery Ltd. Hop Research Center, Iwate, Japan

DATE RECEIVED: spring 1992


AVAILBILITY: no restrictions

REFERENCES: Annual Reports for Hop Research, USDA/ARS, 1992 and later years

Sho Hiruichi and Atsushi Murakami. New Japanese hop varieties with

High alpha acid content. J. Amer. Soc. of Brew. Chemists 50: 10 - 13. 1992

MATURITY: medium late

LEAF COLOR: dark green

SEX: female

DISEASES: Downy mildew: moderately susceptible

Powdery mildew: no information

Verticillium wilt: no information

Viruses: no information

VIGOR: good to very good

YIELD: good but variable from year to year

SIDE ARM LENGTH: 20 to 40 inches

ALPHA ACIDS: 9 - 12 %

BETA ACIDS: 5 - 6 %


STORAGE STABILITY: very good, retained an average of 75% of its original alpha acids after 6 months room temperature storage

OIL: 1.35 ml/100 g. humulene 31%; caryophyllene 8 - 10%; farnesene 6 - 7%; myrcene 34%; H/C ratio = 3.51

MAJOR TRAITS: high humulene content, good aroma potential

OTHER INFORMATION: This hop is not grown commercially in Japan or anywhere else. The data presented in the above cited publication are from 4 hill plots or even from single hills.