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Correlation of Seed Weight and Nurserybed Traits with 5-, 10-, and 15-Year Volumes in a Loblolly Pine Progeny Test

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Seed weight and nurserybed traits of loblolly pine families measured in detail in 1958 were compared to volumes attained 5, 10, and 15 years after outplanting. Three out of eight characteristics showed significant correlations. These were: (1) percent of seedlings within a family with distinct terminal buds in December, (2) percent of seedlings within a family without basal branches and (3) seed weight. A multiple regression was developed using two of these characteristics to predict volume at age 15. Although the regression R² value was low, a genetic gain of 8.0 percent could have been realized by selecting the best 20 percent of the families from the nurserybed. Forest Sci. 25:591-596.

Keywords: Pinus taeda; early selection; genetic gain; indirect selection; juvenile-mature correlations

Document Type: Journal Article

Affiliations: Principal Geneticist, Texas Forest Service, and Professor, Texas Agricultural Experiment Station; College Station, Texas

Publication date: December 1, 1979

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.

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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