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ARS Home » Pacific West Area » Logan, Utah » Forage and Range Research » Research » Publications at this Location » Publication #340687

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: Variation and best linear unbiased predictors (BLUPs) in a novel source of orchardgrass germplasm with increased winter hardiness

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

Submitted to: Canadian Journal of Plant Science
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/10/2017
Publication Date: 5/30/2017
Citation: Robins, J.G., Jensen, K.B., Bushman, B.S. 2017. Variation and best linear unbiased predictors (BLUPs) in a novel source of orchardgrass germplasm with increased winter hardiness. Canadian Journal of Plant Science. 97(6):999-1003. https://doi.org/10.1139/cjps-2017-0042.
DOI: https://doi.org/10.1139/cjps-2017-0042

Interpretive Summary: Orchardgrass productivity is limited by winter injury. Potential for improvement of winter hardiness was identified in a set of experimental orchardgrass lines by evaluation at two Utah locations. However, these lines showed limited potential for increased forage yield.

Technical Abstract: The production potential of orchardgrass (Dactylis glomerata L.) is limited by winter injury at high latitudes and elevations. Evaluation of orchardgrass families at two Utah (US) locations identified significant genetic variation for two measures of tolerance to winter injury, but not for flowering, or biomass production. Repeatability estimates ranged from 0.06 (biomass production) to 0.65 (winter hardiness) for each of the four traits.