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Influences of testing sites on the genetic correlations in open-pollinated family trials of Pinus elliottii in South Africa

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Summary

Two series of open-pollinated family trials of Pinus elliottii, the so-called foreign selection series and the Zululand selection series were repeated, respectively, on four and three sites situated in sub-tropical and cooler-temperate climates of the summer rainfall and constant rainfall areas of South Africa. These series were studied in order to determine how testing sites influence the genetic correlations between traits commonly measured in progeny trials. No trend was detected between site index and genetic correlation, but site drastically changed the size and sign of the genetic correlations between growth traits and stem form. Even the genetic correlation between height and diameter at breast height was strongly affected by site.

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References

  • Anderson RL, Bancroft TA (1952) Statistical theory in research. McGraw Hill, New York, 400 pp

    Google Scholar 

  • Clark AG (1987) Senescence and the genetic-correlation hangup. Am Nat 129:932–940

    Google Scholar 

  • Dagnelie P (1970) Théorie et méthodes statistiques. Applications agronomiques, vol 2. J. Duculot, Gembloux. 448 pp

    Google Scholar 

  • Falconer DS (1983) Introduction to quantitative genetics, 2nd edn. Oliver and Boyd, London, 340 pp

    Google Scholar 

  • Falkenhagen ER (1989) Relationships between some genetic parameters and test environments in open-pollinated families of Pinus elliottii in South Africa. Theor Appl Genet 77:857–866

    Google Scholar 

  • SAS (1985a) SAS user's guide: Statistics, Version 5. SAS Institute, Cary/NC, 956 pp

    Google Scholar 

  • SAS (1985b) SAS/Graph user's guide, Version 5. SAS Institute, Cary/NC, 596 pp

    Google Scholar 

  • SAS (1986) SUGI Supplemental library user's guide, Version 5. SAS Institute, Cary/NC, 662 pp

    Google Scholar 

  • Scheinberg F (1966) The sampling variance of the correlation coefficient estimated in genetic experiments. Biometrics 22:187–191

    Google Scholar 

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Authors and Affiliations

  1. South African Forestry Research Institute, Pretoria, South Africa

    E. R. Falkenhagen

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  1. E. R. Falkenhagen
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Communicated by H. F. Linskens

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Falkenhagen, E.R. Influences of testing sites on the genetic correlations in open-pollinated family trials of Pinus elliottii in South Africa. Theoret. Appl. Genetics 77, 873–880 (1989). https://doi.org/10.1007/BF00268341

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  • DOI: https://doi.org/10.1007/BF00268341

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