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Periods of organogenesis in mono- and bicyclic annual shoots of Juglans regia L. (Juglandaceae)

Sabatier Sylvie-Annabel, Barthélémy Daniel, Ducousso I.. 2003. Periods of organogenesis in mono- and bicyclic annual shoots of Juglans regia L. (Juglandaceae). Annals of Botany, 92 (2) : pp. 231-238.

Journal article ; Article de revue à facteur d'impact
Full text not available from this repository.

Autre titre : Périodes d'organogenèse chez les pousses annuelles mono et bicycliques de Juglans regia L. (Juglandaceae)

Abstract : The organogenetic cycle of shoots on main branches of 4-year-old Juglans regia trees was studied. Mono- and bicyclic floriferous and vegetative annual shoots were analysed. Five parent annual shoot types were sampled between October 1992 and August 1993. Organogenesis of summer growth units was monitored between 16 Jun. and 3 Aug. 1993. Variations over time in the number of nodes, cataphylls and embryonic green leaves of terminal buds were studied. The number of nodes of parent shoot buds was compared with the number of nodes of shoots derived from parent shoot buds. The spring growth units of mono- and bicyclic shoots consist exclusively of preformed leaves which were differentiated, respectively, during the spring flush of growth (mid-April until mid-May) or the summer flush of growth (mid-June until early August) in the previous growing season. Thus, winter buds may consist of flower and leaf primordia differentiated in two different periods during annual shoot extension. The summer growth units of bicyclic shoots consist of preformed leaves that were differentiated in spring buds during the spring flush of growth in the current growing season. Bud morphology is compared between spring and summer shoots. (Résumé d'auteur)

Mots-clés Agrovoc : Juglans regia, Organogénèse, Pousse, Bourgeon, Variation saisonnière, Croissance, Anatomie végétale

Classification Agris : F62 - Plant physiology - Growth and development
F50 - Plant structure

Auteurs et affiliations

  • Sabatier Sylvie-Annabel, CIRAD-AMIS-AMAP (FRA)
  • Barthélémy Daniel, CIRAD-AMIS-AMAP (FRA) ORCID: 0000-0003-3187-2517
  • Ducousso I., INRA (FRA)

Autres liens de la publication

  • Document en bibliothèque
  • Localisation du document : CD_BR11652 [(Bibliothèque de Lavalette)] ; CD_PE871 [(Bibliothèque de Lavalette)]

Source : Cirad - Agritrop (https://agritrop.cirad.fr/514742/)

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