Coordinated development of the architecture of the primary shoot in bush rose

Sabine Demotes-Mainard 1, * Gaëlle Gueritaine 1 Rachid Boumaza 1 Patrick Favre 1 Vincent Guérin 1 Lydie Huché-Thélier 1 Bruno Andrieu 2
* Auteur correspondant
1 SAGAH - Sciences Agronomiques Appliquées à l'Horticulture
2 EGC - Environnement et Grandes Cultures
Abstract : The development of the architecture of ornamental bushes needs to be explicitly described because it defines both their visual appearance and their interface with the environment. The aim of this work was to describe the dynamics of organ development in the primary shoot of rose bushes and their coordination. Rosa hybrida L. 'Radrazz' was grown in a glasshouse in two seasons. Internodes and leaflets were measured frequently and elongation curves were fitted to a linear-plateau model. The number of leaflets per leaf displayed clear patterns of organization along the shoot. Allometric relationships linked all leaf dimensions to terminal leaflet length. The differences in internode length between successive phytomers resulted from differences in the extension rate and the duration of extension. Conversely, the differences in the terminal leaflet size resulted almost solely from differences in extension rate. Internodes and terminal leaflets extensions were closely coordinated. This work provides the basic elements for establishing a virtual plant model.
Type de document :
Communication dans un congrès
Third Symposium on Plant Growth Modeling, Simulation Visualization and Applications, Nov 2009, Beijing (CH), China. IEEE Computer Society, pp.214-221, 2009, 〈10.1109/PMA.2009.44〉
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UNAM | AGROCAMPUS-OUEST | AGROPARISTECH | INRA | IRHS-INSTITUT-DE-RECHERCHE-EN-HORTICULTURE-ET-SEMENCES-AGROCAMPUS-OUEST | ECOSYS

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Sabine Demotes-Mainard, Gaëlle Gueritaine, Rachid Boumaza, Patrick Favre, Vincent Guérin, et al.. Coordinated development of the architecture of the primary shoot in bush rose. Third Symposium on Plant Growth Modeling, Simulation Visualization and Applications, Nov 2009, Beijing (CH), China. IEEE Computer Society, pp.214-221, 2009, 〈10.1109/PMA.2009.44〉. 〈hal-00729988〉

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