A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape

M. Křepela, J. Sequens and D. Zahradník
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M. Křepela: Faculty of Forestry and Environment, Czech University of Agriculture, Prague, Czech Republic
J. Sequens: Faculty of Forestry and Environment, Czech University of Agriculture, Prague, Czech Republic
D. Zahradník: Faculty of Forestry and Environment, Czech University of Agriculture, Prague, Czech Republic

Journal of Forest Science, 2004, vol. 50, issue 5, 211-218

Abstract: This is a study on the evaluation of stem shape in Scots pine. The experiments were carried out on 430 stems without bark, taken from 30 fully analysed sample trees that grew in 5 different locations in the Czech Republic. Generalized Procrustes analysis was used as the method of study. The stems were described by the use of landmarks. Full Procrustes coordinates were calculated for all stems, and the full Procrustes mean shape was set for individual sample trees, locations and all stems. For Procrustes tangent coordinates, variability was examined using the method of principal components. The two most important principal components were diagrammatized and described. Furthermore, statistical tests of mean shape vectors for individual locations were carried out.

Keywords: Scots pine (Pinus sylvestris L.); stem shape; Procrustes analysis; principal components analysis (search for similar items in EconPapers)
Date: 2004
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:50:y:2004:i:5:id:4617-jfs

DOI: 10.17221/4617-JFS

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