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    Author(s): R. C. Johnson; M. J. Cashman; K. Vance-Borland
    Date: 2012
    Source: Rangeland Ecology and Management. 65(5): 523-532.
    Publication Series: Scientific Journal (JRNL)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (878.28 KB)

    Description

    Indian ricegrass (Achnatherum hymenoides [Roemer & J.A. Schultes] Barkworth) is a widely distributed, highly desirable native species in desert ecosystems in the western United States. Yet there are no studies linking genetic variation in Indian ricegrass with climate across major areas of its natural distribution. In this study, seeds from 106 collection locations from the southwestern United States were established in common gardens and four phenological traits (Phen; such as blooming date), six production traits (Pro; such as dry weight), and eight morphology traits (Morph; such as leaf dimensions) were measured in 2007 and 2008. Analyses of variance revealed that all basic garden traits differed among source locations (P < 0.01), indicating widespread genetic variation.

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    Citation

    Johnson, R. C.; Cashman, M. J.; Vance-Borland, K. 2012. Genecology and seed zones for indian ricegrass collected in the southwestern United States. Rangeland Ecology and Management. 65(5): 523-532.

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    Keywords

    Achnatherum hymenoides, common garden, genetic resources, germplasm, restoration, revegetation

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