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Notes: Trends in Genetic Control of Juvenile Black Walnut Height Growth

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Abstract:

Narrow-sense heritability for black walnut height at age 10 was 0.55, and gain projections based upon selecting the tallest tree in the fastest growing 50 percent of families indicate a possible improvement of 25 percent over mean unselected height. Despite analysis of trends in variance components, heritabilities, correlations, and cumulative height over the 10-year period which indicate that the progeny test is still in a juvenile growth phase, early selection for subsequent height growth appears to be effective in this species. Forest Sci. 30:821-827.

Keywords: Gains; Juglans nigra; age-age correlations; coefficients of genetic prediction; selection covariance

Document Type: Miscellaneous

Affiliations: Research Geneticist, North Central Forest Experiment Station, Forestry Sciences Laboratory, Carbondale, IL 62901

Publication date: 1984-09-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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