Primary growth and morphological markers of interannual growth limits in Cupressaceae from Patagonia

Grosfeld Javier, Barthélémy Daniel. 2004. Primary growth and morphological markers of interannual growth limits in Cupressaceae from Patagonia. Botanical Journal of the Linnean Society, 146 (3) : 285-293.

Résumé : The present study shows experimentally that primary growth of the native Patagonian Cupressaceae Austrocedrus chilensis (D. Don) Pic.-Serm et Bizz., Fitzroya cupressoides (Molina) I. M. Johnst. and Pilgerodendron uviferum (D. Don) Florin is potentially continuous. External morphological markers of interannual growth limits have been identified for the main axes of these species after several years of observation. Such limits correspond with axis portions in which internodes are relatively short and leaves have a small distal free end forming an acute angle with the axis. The causality of these results and their utility for studying the productivity, adaptation to different environments, population management and conservation of these threatened species are discussed.

Mots-clés Agrovoc : Cupressaceae, Libocedrus, croissance, morphogénèse, noeud, dimension

Mots-clés géographiques Agrovoc : Amérique du Sud, Argentine, Chili

Mots-clés complémentaires : Pilgerodendron uviferum, Fitzroya cupressoides

Classification Agris : F62 - Physiologie végétale - Croissance et développement
F50 - Anatomie et morphologie des plantes

Auteurs et affiliations

• Grosfeld Javier, Universidad Nacional del Comahue (ARG)
• Barthélémy Daniel, CIRAD-AMIS-AMAP (FRA) ORCID: 0000-0003-3187-2517

Source : Cirad - Agritrop (https://agritrop.cirad.fr/523695/)

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