Preliminary results on phenotypic plasticity of coffee (Coffea arabica Cv. Rubi and Iapar59) plants in response to water constraint under field conditions

Rodrigues Gustavo Costa, Rojas Juan S.D., Roupsard Olivier, Leroy Thierry, Pot David, Moreira M.Z., Verdeil Jean-Luc, Dauzat Jean, Jourdan Christophe, Andrade Alan Carvalho, Marraccini Pierre. 2011. Preliminary results on phenotypic plasticity of coffee (Coffea arabica Cv. Rubi and Iapar59) plants in response to water constraint under field conditions. In : Proceedings of the 23rd International Conference on Coffee Science; Bali, Indonesia, October 3-8, 2010 = Actes du 23ème Colloque scientifique international sur le café, Bali, Indonésie, 3-8 octobre 2010. ASIC. Paris : ASIC, 698-703. ISBN 978-2-900212-22-6 International Conference on Coffee Science. 23, Bali, Indonésie, 3 Octobre 2010/8 Octobre 2010.

Résumé : The effects of drought-stress on aerial and root architecture, ecophysiology, anatomy and molecular responses were investigated during 2 years using the Iapar59 (drought-tolerant) and Rubi (drought susceptible) cultivars of Coffea arabica. Plants were grown under three water treatments: I-I a non limited watering treatment (irrigated each year during the dry season), NI-NI a limited water treatment (non-irrigated during the dry seasons) and NI-I, a limited watering in year 1 and non-limited watering in year 2 ("recovery"). Six points of measurements were taken along the experiment. For all conditions, the phenotypic plasticity was followed by analyzing architecture, evolutions of biomass, ?13C and sap flow for example.

Mots-clés Agrovoc : Coffea arabica, stress dû à la sécheresse

Mots-clés géographiques Agrovoc : Brésil

Classification Agris : F30 - Génétique et amélioration des plantes
F62 - Physiologie végétale - Croissance et développement
F06 - Irrigation

Auteurs et affiliations

• Rodrigues Gustavo Costa, EMBRAPA (BRA)
• Rojas Juan S.D., USP (BRA)
• Roupsard Olivier, CIRAD-PERSYST-UPR Ecosystèmes de plantations (CRI) ORCID: 0000-0002-1319-142X
• Leroy Thierry, CIRAD-BIOS-UMR DAP (FRA)
• Pot David, CIRAD-BIOS-UMR DAP (FRA) ORCID: 0000-0001-6144-8448
• Moreira M.Z., CENA (BRA)
• Verdeil Jean-Luc, CIRAD-BIOS-UMR DAP (FRA)
• Dauzat Jean, CIRAD-BIOS-UMR AMAP (FRA)
• Jourdan Christophe, CIRAD-PERSYST-UPR Ecosystèmes de plantations (FRA) ORCID: 0000-0001-9857-3269
• Andrade Alan Carvalho, EMBRAPA (BRA)
• Marraccini Pierre, CIRAD-BIOS-UMR DAP (BRA) ORCID: 0000-0001-7637-6811

Source : Cirad - Agritrop (https://agritrop.cirad.fr/560155/)

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