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ARS Home » Pacific West Area » Logan, Utah » Forage and Range Research » Research » Publications at this Location » Publication #341846

Research Project: Develop Improved Plant Genetic Resources to Enhance Pasture and Rangeland Productivity in the Semiarid Regions of the Western U.S.

Location: Forage and Range Research

Title: Registration of USDA-UTWH-102 winter hardy orchardgrass germplasm

item Robins, Joseph
item Jensen, Kevin
item Bushman, Shaun

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/22/2017
Publication Date: 1/11/2018
Citation: Robins, J.G., Jensen, K.B., Bushman, B.S. 2018. Registration of USDA-UTWH-102 winter hardy orchardgrass germplasm. Journal of Plant Registrations. 12:251-252.

Interpretive Summary: The USDA-ARS announces the release of USDA-UTWG-102 orchardgrass germplasm. USDA-UTWH-102 exhibited increased winterhardiness and spring green up when compared to six commercial orchardgrass varieties under severe winter conditions. USDA-UTWH-102 will be useful for incorporation into applied orchardgrass breeding programs for increased winterhardiness.

Technical Abstract: The USDA-ARS announces the release of USDA-UTWG-102 orchardgrass (Dactylis glomerata L.) (Reg. No., PI) germplasm. USDA-UTWH-102 possesses increased winter hardiness and provides utility to applied orchardgrass breeding and genetic programs. USDA-UTWH-102 is a 24 clone synthetic derived from orchardgrass collections made at high elevations in central Utah. The selection criteria for USDA-UTWH-102 were severity of winter injury and spring recovery (green color) at Panguitch, Utah - a cold, high elevation location in southern Utah. In comparison to six orchardgrass cultivars in evaluation at Millville and Panguitch, Utah, USDA-UTWG-102 exhibited less winter injury than all but one cultivar and greater spring recovery than all but two cultivars.