Architectural development of inflorescence in Hydrangea macrophylla cv. Hermann Dienemann

Gilles Galopin 1, * Sandrine Codarin 2 Jean Daniel Viemont 2 Philippe Morel 2
* Corresponding author
1 SAGAH - Sciences Agronomiques Appliquées à l'Horticulture
2 SAGAH - Sciences Agronomiques Appliquées à l'Horticulture
Abstract : Architectural development of inflorescence in Hydrangea macrophylla cv. Hermann Dienemann was observed using scanning electron microscopy. The study of inflorescence morphogenesis shows that the architecture is of the dichasial type. The first two orders of branching are initiated from a dichasial branching without floral differentiation. The following orders present floral differentiation. They determine the formation of small units through the development of composite dichasium into biparous and uniparous cymes. This research makes it possible to establish a schematic representation of the first phases of inflorescence development and to define early stages of inflorescence morphogenesis.
Keywords : Hydrangea macrophylla inflorescence organogenesis phenological stages hortensia morphogene
Document type :
Journal articles
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https://hal-agrocampus-ouest.archives-ouvertes.fr/hal-00729839
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Submitted on : Tuesday, March 12, 2013 - 9:39:04 AM
Last modification on : Wednesday, June 5, 2019 - 1:40:02 AM

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  • HAL Id : hal-00729839, version 1

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UNAM | AGROCAMPUS-OUEST | UNIV-ANGERS | INRA | AGROCAMPUS-OUEST-UMR-IRHS

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Gilles Galopin, Sandrine Codarin, Jean Daniel Viemont, Philippe Morel. Architectural development of inflorescence in Hydrangea macrophylla cv. Hermann Dienemann. HortScience, American Society for Horticultural Science, 2008, 43 (2), pp.361-365. ⟨hal-00729839⟩

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