Preliminary results on phenotypic plasticity of coffee (Coffea arabica Cv. Rubi and Iapar59) plants in response to water constraint under field conditions
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.
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Main Authors: | 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 |
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Format: | conference_item biblioteca |
Language: | eng |
Published: |
ASIC
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Subjects: | F30 - Génétique et amélioration des plantes, F62 - Physiologie végétale - Croissance et développement, F06 - Irrigation, Coffea arabica, stress dû à la sécheresse, http://aims.fao.org/aos/agrovoc/c_1721, http://aims.fao.org/aos/agrovoc/c_24993, http://aims.fao.org/aos/agrovoc/c_1070, |
Online Access: | http://agritrop.cirad.fr/560155/ http://agritrop.cirad.fr/560155/1/document_560155.pdf |
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