DEVELOPMENT

UC Capay is a two-row spring malting barley (Hordeum vulgare L.) selected from the cross among ‘29IB20’, ‘Orca’ and ‘ND22202’.  These three genotypes were among the best two-rowed genotypes for malting quality and adaptation to California Central Valley growing conditions when evaluated at the inception of the two-rowed malting barley breeding program at UC Davis.

BREEDING HISTORY AND DESCRIPTION

UC-Capay is a two-row malting barley without sterile lateral florets in the spike. It is also about 20 cm taller and 15 days earlier to heading compared to UC Tahoe.

YIELD AND MALTING QUALITY

UC-Capay has outstanding malting quality.  It is superior in that regard to UC Tahoe for all environments and years tested.  It showed higher grain yield than UC Tahoe under rain fed conditions, but slightly lower under irrigated trials.

DISEASE RESISTANCE

UC-Capay has excellent tolerance to CYDV/BYDV, Powdery Mildew and Stripe Rust (significantly better than UC Tahoe and Butta 12 for stripe rust).

AREA OF ADAPTATION AND PRIMARY USE

UC-Capay performed well in all areas where it was tested in the Sacramento and San Joaquin Valleys.  UC-Capay is especially well-suited to rain fed conditions where its yield stability is strongly advantageous.  UC-Capay combines excellent malting quality, low grain protein (about 8 to 10% lower than other varieties), high yield potential, and resistance to the most common diseases in California, i.e. yellow dwarf virus and stripe rust.

ALLOCATION OF SEED AND LICENSING

To obtain information and/or a license for UC-Capay, please contact:

University of California/UC Davis Innovation Access
Denise L. Meade, Intellectual Property Analyst
(530) 754-8674
dlmeade@ucdavis.edu