Pith: a new criterion for monitoring the architecture in Mediterranean pines
| Autor: | Sylvie-Annabel Sabatier, Philippe Borianne, François Pailler, Michel Vennetier, Yves Caraglio, Jimmy Le Bec, Fabien Buissart, Christophe Zilliox, Michael Guéroult |
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| Rok vydání: | 2015 |
| Předmět: |
K50 - Technologie des produits forestiers
Mediterranean climate Physiology Bois de coeur F62 - Physiologie végétale - Croissance et développement Plant Science F50 - Anatomie et morphologie des plantes Zone tempérée Pinus brutia Aleppo Pine Botany Temperate climate Croissance Port de la plante Morphologie végétale Moelle Ecology biology fungi food and beverages modèle de croissance forestière Forestry 15. Life on land biology.organism_classification Horticulture Plant development Cerne Anatomie végétale Accroissement du diamètre Cycle de développement Shoot Pith Pinus halepensis circulatory and respiratory physiology Woody plant |
| Zdroj: | Trees |
| ISSN: | 1432-2285 0931-1890 |
| DOI: | 10.1007/s00468-015-1264-6 |
| Popis: | Plant architecture can be used to study plant development retrospectively thanks to time-dependent morphological markers, particularly those corresponding to the winter break in temperate regions. The Aleppo Pine and the Turkish Pine are polycyclic species, thus they usually develop several consecutive growth units per year, making it sometimes difficult to date them. In this study, we show that keeping track of the pith diameter profile, to date each shoot, is an efficient method. The pith diameter is larger on the first growth unit than on the last growth unit of the year. Moreover, a pairwise comparison showed that the pith diameter undergoes a decrease along the annual shoot from the first growth unit to the last. As pith diameter decreases upwards the annual shoot, it can be used for dating. Pith diameter progresses from 1 year to another too: there is an increase in the early years of life, corresponding to the tree's establishment phase. Lastly, we found a positive relationship between the basal pith diameter of an annual shoot and its length. The variability around this relationship could reflect environmental conditions, especially climate conditions. |
| Databáze: | OpenAIRE |
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