USDA ACCESSION NO.: 65104

SELECTION: Clonal selection made by C. B. Skotland, Prosser, WA from a commercial Late Cluster yard in the late 1950s.

GENUS: Humulus

SPECIES: lupulus

CULTIVAR: Late Cluster , L 8

PEDIGREE: Identical to USDA 65102

PRIMARY SITE: Irrigated Agriculture Research and Extension Center, Prosser, WA

ORIGIN: Identical to 65102

DATE RECEIVED: 1965

METHOD RECEIVED: Rhizomes

AVAILABILITY: No restrictions, commercial cultivar

REFERENCES: Identical to USDA 65102

MATURITY: Late

LEAF COLOR: Dark green

SEX: Female

DISEASES: Downy Mildew: susceptible

Verticillium wilt: resistant

Viruses: free of prunus necrotic ringspot and apple mosaic virus, becoming reinfected over a 10 15 year period in commercial plantings.

VIGOR: Excellent

YIELD: High, 2000 lbs/acre

SIDE ARM LENGTH: 24 36 inches

ALPHA ACIDS: 5.0% (4 year range: 4.1 to 6.4%)

BETA ACIDS: 4.7% (4 year range: 3.7 to 5.5%)

COHUMULONE: 42%

STORAGE STABILITY: Excellent

OIL: 0.34 ml/100 9 (4 year range: 0.19 to 0.46); Humulene 13.4%; caryophyllene 4.9%; myrcene 58.1%; Farnesene 0.3%. H/C ratio = 2.74

MAJOR TRAITS: Similar to USDA 65102, but more resistance to spider mites

OTHER INFORMATION: Not adapted to western Oregon because of downy mildew susceptibility. Indistinguishable from other Cluster selections by chemical means or in brewing. In 1986 2,133 acres of Late Cluster accounted for 8.5% of total U.S. hop acreage. L 8 is the designation given to the selection by Dr. C.B. Skotland in the 1950's when he started his virus program. L 8 has a higher level of spidermite resistance than other Cluster elections. Total Cluster production in 1991 was 14.5 mill. lbs grown on 6964 acres and perhaps 20% of that was L8. In 1997, total Cluster production was 8.38 mill. Lbs on 3,697 acres.


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