USDA ACCESSION NO.: 21281

SELECTION: Open pollinated seedling selection made by Professor E.R. Salmon at Wye College, England, in the 1920's or early 1930s.

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Sunshine

PEDIGREE: Female OS99 x OP; OS99 arose from an open pollinated seed collected on the female B20, a plant of unknown origin of the Golding class according to a letter from Dr. R.A. Neve, head of the Dept. of Hop Research, Wye College, April 30, 1975. Neve says "Salmon conentrated very much on American seedlings and the open pollination could easily have involved a wild American parent. The oil chromatograms of Comet (USDA 62013) and Sunshine are similar."

PRIMARY SITE: USDA-ARS World Hop Cultivar Collection, Corvallis, Oregon, OSU East Farm

ORIGIN: Seedling selection

DATE RECEIVED: December 6, 1979, USDA Accession No. assigned in 1980

METHOD RECEIVED: Rhizomes

AVAILABILITY: No restrictions

REFERENCES: USDA-ARS Annual Report of Hop Research for 1979, p. 40.

USDA-ARS Annual Report of Hop Research for 1980, p. 45.

Salmon, E.S. 1946. Two new hops: 'Pride of Kent' and 'Sunshine Hop'. Leaflet. Wye College. 4 pp.

Wagner, T. 1978. Gene Pools of Hop Countries. p. 27. Institute for Hop Research, Zalec, Slovenia).

MATURITY: Medium-early to medium

LEAF COLOR: Lemon yellow, light green

SEX: Female

DISEASES: Downy Mildew: moderately resistant

Verticillium wilt: unknown

Viruses: unkown

VIGOR: Fair to good

YIELD: Poor, 500-800 lbs/acre

SIDEARM LENGTH: 12-20 inches

ALPHA ACIDS: 7.5% (3-year range 6.7-8.2%)

BETA ACIDS: 2.7% (3-year range 2.1-3.1%)

COHUMULONE: 34%

STORAGE STABILITY: Fair to poor (retained 50% of original alpha acids after 6-months room temperature storage

OIL: 1.35 ml/100 g; H/C - 0.19; humulene 0.9%, almost not present at all; myrcene above 55% of the oil

MAJOR TRAITS: Lemon yellow leaf color, which persists throughout the whole growing season. This seems to be a single gene since crosses between yellow-leaved females and males segregate in the ratio 1:2:1 albino:yellow:green.

OTHER INFORMATION: This hop is an oddity because of its yellow leaf color and has value as an ornamental. Open-pollinated seedling of Sunshine, USDA 19120, is the mother of Comet (USDA 62013) from which Comet retained a slightly yellowish leaf coloring which is conspicuous in early spring but disappears later during the growing season. Due to the pale yellow leaf color of Sunshine the leaves often show necrotic burn in late summer due to heavy sunlight exposure. A yellow-leaf type called Humulus lupulus var. aureus is sold in the ornamental trade according to Gary Koller, Arnold Arboretum, Harvard University.





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