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    • Journal of Range Management, Volume 51 (1998)
    • Journal of Range Management, Volume 51, Number 6 (November 1998)
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    Integrating genetic concepts into planning rangeland seedings

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    Author
    Jones, T. A.
    Johnson, D. A.
    Issue Date
    1998-11-01
    Keywords
    artificial regeneration
    interspecific hybridization
    sowing
    plant genetic resources
    reclamation
    adaptation
    seedlings
    plant communities
    range management
    literature reviews
    
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    Citation
    Jones, T. A., & Johnson, D. A. (1998). Integrating genetic concepts into planning rangeland seedings. Journal of Range Management, 51(6), 594-606.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/643966
    DOI
    10.2307/4003599
    Additional Links
    https://rangelands.org/
    Abstract
    Choice of plant materials is a fundamental component of any rangeland rehabilitation, reclamation, or restoration project. We describe here an integrated approach for such decision-making. This approach considers site potential, desired landscape, seeding objectives, conflicting land use philosophies, appropriate plant materials, weed invasion, community seral status, and economic limitations. Technical limitations are considered in generating a plan that has the greatest potential for success. Determining whether native-site plant material is best depends on objectives, heterogeneity of the site's environment, uniqueness of the site, plant population size, and biotic or abiotic site disturbance. Fixation of alien genes into a population is referred to both as introgression, which may ensure maintenance of genetic variation critical for adaptation to a changing environment, and as genetic pollution, with the potential for swamping native cross-pollinating annual or short-lived perennial gene pools. Precautionary procedures during seed increase minimize genetic shift, which may be reversible, but genetic drift could result in permanent loss of desirable genes. A variety of germplasm classes, ranging from site-specific to widely adapted and varying in degrees of heterozygosity and heterogeneity should be considered.. Material originating from multiple sites may increase the opportunity for natural selection. An understanding of the magnitude and nature of a species' genetic variation, its relationship to ecological adaptation, and its interaction with other ecosystem components contribute to informed decision-making. Though often unavailable, experience is the best guide for predicting performance of materials on non-native sites.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4003599
    Scopus Count
    Collections
    Journal of Range Management, Volume 51, Number 6 (November 1998)

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