A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape
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 we...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2004-05-01
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| Series: | Journal of Forest Science |
| Subjects: | |
| Online Access: | https://jfs.agriculturejournals.cz/artkey/jfs-200405-0002_a-contribution-to-the-knowledge-of-scots-pine-pinus-sylvestris-l-stem-shape.php |
| _version_ | 1797898915429744640 |
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| author | M. Křepela J. Sequens D. Zahradník |
| author_facet | M. Křepela J. Sequens D. Zahradník |
| author_sort | M. Křepela |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-10T08:21:47Z |
| format | Article |
| id | doaj.art-704313f0c7974bb2801855d1a3989a42 |
| institution | Directory Open Access Journal |
| issn | 1212-4834 1805-935X |
| language | English |
| last_indexed | 2024-04-10T08:21:47Z |
| publishDate | 2004-05-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Journal of Forest Science |
| spelling | doaj.art-704313f0c7974bb2801855d1a3989a422023-02-23T03:41:35ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2004-05-0150521121810.17221/4617-JFSjfs-200405-0002A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shapeM. Křepela0J. Sequens1D. Zahradník2Faculty of Forestry and Environment, Czech University of Agriculture, Prague, Czech RepublicFaculty of Forestry and Environment, Czech University of Agriculture, Prague, Czech RepublicFaculty of Forestry and Environment, Czech University of Agriculture, Prague, Czech RepublicThis 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.https://jfs.agriculturejournals.cz/artkey/jfs-200405-0002_a-contribution-to-the-knowledge-of-scots-pine-pinus-sylvestris-l-stem-shape.phpscots pine (pinus sylvestris l.)stem shapeprocrustes analysisprincipal components analysis |
| spellingShingle | M. Křepela J. Sequens D. Zahradník A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape Journal of Forest Science scots pine (pinus sylvestris l.) stem shape procrustes analysis principal components analysis |
| title | A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape |
| title_full | A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape |
| title_fullStr | A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape |
| title_full_unstemmed | A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape |
| title_short | A contribution to the knowledge of Scots pine (Pinus sylvestris L.) stem shape |
| title_sort | contribution to the knowledge of scots pine pinus sylvestris l stem shape |
| topic | scots pine (pinus sylvestris l.) stem shape procrustes analysis principal components analysis |
| url | https://jfs.agriculturejournals.cz/artkey/jfs-200405-0002_a-contribution-to-the-knowledge-of-scots-pine-pinus-sylvestris-l-stem-shape.php |
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