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Theoretical and Applied Genetics

, Volume 85, Issue 2–3, pp 165–172 | Cite as

Genetic variation in nutrient response functions

  • G. Namkoong
  • A. Jonsson
  • G. Eriksson
Originals

Summary

Genetic differences in the non-linear growth response function of Pinus sylvestris seedlings to five nutrient levels are analyzed to estimate the causes of variation. Analyses of genotypic differences as quadratic response functions, as stability coefficients, and as separable functions indicate that the estimation of genetic effects can vary widely depending on the analytical model assumed. The existence of different reaction norms is demonstrated.

Key words

Nutrient response Genetic variance Genotype x environment interaction Pinus sylvestris Seedling growth 

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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • G. Namkoong
    • 1
  • A. Jonsson
    • 2
  • G. Eriksson
    • 2
  1. 1.USDA Forest Service, Southeastern Forest Experiment Station, Genetics DepartmentNorth Carolina State UniversityRaleighUSA
  2. 2.Department of Forest Genetics, Faculty of ForestrySwedish University of Agricultural SciencesUppsalaSweden

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