USDA ACCESSION NO.: 65104
SELECTION: Clonal selection made by C. B. Skotland, Prosser, WA from a commercial Late Cluster yard in the late 1950s.
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
LEAF COLOR: Dark green
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.
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%)
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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