A Quantitative Analysis of the Three‐Dimensional Spatial Colonization by a Plant as Illustrated by White Clover (Trifolium repens L.)
| Autor: | Claude Varlet-Grancher, Angélique Christophe, Bruno Moulia |
|---|---|
| Přispěvatelé: | Unité de recherche d'Écophysiologie des Plantes Fourragères (UEPF), Institut National de la Recherche Agronomique (INRA), ProdInra, Migration |
| Rok vydání: | 2003 |
| Předmět: |
0106 biological sciences
Quantitative Biology::Tissues and Organs INTERNODES Plant Science Biology Ellipse 01 natural sciences Petiole (botany) Dispersion (optics) Botany QUANTITATIVE ANALYSIS [SDV.BV]Life Sciences [q-bio]/Vegetal Biology [SDV.BV] Life Sciences [q-bio]/Vegetal Biology Colonization ONTOGENESIS Anisotropy Ecology Evolution Behavior and Systematics PETIOLES PLANT ARCHITECTURE fungi food and beverages 04 agricultural and veterinary sciences 15. Life on land biology.organism_classification SPATIAL COLONIZATION BY PLANTS Spatial dispersion 3-D DIGITIZING WHITE CLOVER 040103 agronomy & agriculture Trifolium repens 0401 agriculture forestry and fisheries NONPARAMETRIC ANALYSIS 010606 plant biology & botany |
| Zdroj: | International Journal of Plant Sciences International Journal of Plant Sciences, University of Chicago Press, 2003, 164 (3), pp.359-370 |
| ISSN: | 1537-5315 1058-5893 |
| Popis: | A new method is described for measuring spatial colonization by plants from three‐dimensional (3‐D) records of their aerial morphology. Nonparametric indices were devised to quantify the space colonized by the plant by measuring the spatial dispersion of sets of points representing relevant morphological features of its architecture, such as the nodes and petiole tips. These indices are defined as the square root of the second‐order moments of these sets, i.e., as dispersion radii. They can be split into the components that characterize the major directions of colonization and those that analyze the contributions of the various morphological features. Horizontal dispersion can be visualized as an indicator ellipse (to characterize the anisotropy), and vertical dispersion as equivalent heights. The kinetics of spatial colonization are then characterized as the changes in these dispersion radii during the development of the plant. This method is illustrated using isolated white clover plants. Two phases can... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|