Start Date: Sep 25, 2008
End Date: Sep 24, 2013
Approximately 100 hop experimental accessions of hop germplasm developed by USDA-ARS will be provided to Washington State University each year where the germplasm will be evaluated under growing conditions representative of the Washington hop growing regions. Single hill observation plots for each accession will be established in the first year (baby year). Production and chemistry data will be collected for two years subsequent to the baby year. Data for the following traits will be collected and documented from the 30% selected individuals: 1) Yield 2) Susceptibility to powdery mildew, aphids and spider mites 3) Bittering acid composition 4) Storage-ability 5) Essential oil composition Advanced lines identified by USDA-ARS for additional observation under semi-commercial production will be increased and grown out in 5-hill plots at the Prosser research station where data for two years subsequent to the baby year (year of establishment) on the above traits will be collected and recorded. New experimental lines developed at the Prosser station will be provided for evaluation in the Oregon hop producing region.