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24, chemin de Borde Rouge –Auzeville – CS52627
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Dernière mise à jour : Mai 2018

Menu Logo Principal AgroParisTech université Paris-Saclay

Welcome to ECOSYS

UMR ECOSYS - Ecologie fonctionnelle et écotoxicologie des agroécosystèmes

JULLIEN Alexandra

Alexandra Jullien
© Alexandra Jullien
Professeure : Ecophysiologie, analyse structure-fonction des plantes, plasticité

Unité Mixte de Recherche ECOSYS / Pôle Eco&Phy

INRAE AgroParisTech
Route de la Ferme
F-78850 Thiverval-Grignon (France)


Tel: (+33)  Mail: 


Ecophysiologie, analyse structure-fonction des plantes, plasticité

Lecturer in agronomy


Département SIAFEE

Formation / Expériences
2000 : Doctorat de Sciences Agronomiques délivré par l’Institut National Agronomique de Paris-Grignon. Directeurs de thèse : B. Ney (INA P-G), E. Malézieux (CIRAD). Soutenance : le 15 novembre 2000 à L’INA P-G Ph. D. In ecophysiology, INA P-G on ecophysiology of banana tree and fruit quality in Guadeloupe (French West Indies)
1997 : - Diplôme d’Ingénieur Agronome de l’Institut National Agronomique Paris-Grignon - Diplôme d’Etudes Approfondies : Biologie, Diversité et Adaptation des plantes cultivées. Institut National Agronomique de Paris-Grignon Engineering degree (equivalent master degree) in crop science, INA P-G ; Master degree of research in crop science, INA P-G

Thèmes de recherche
Modélisation de la plasticité architecturale des plantes. Caractérisation des interactions génotype environnement.

Modélisation des interactions entre architecture et allocation de la biomasse.

Définition d’idéotypes, identification de critères pertinents pour la caractérisation des variétés.
Modelling of architectural plasticity of plants. Application to the characterization of Genotype Environment Interactions in arable crops (winter oilseed rape).
Development of an architectural plant model to simulated biomass allocation within the plant (GreenLab)
Identification of pertinent ecophysiological parameters to describe genetic variability to address to geneticians.
Activités d’enseignement
Second cycle

1ère année : TD Fonctionnement des Peuplements Végétaux.

2ème année : Co-responsable Initiation à l’Ingénierie de Projet Enjeux et Stratégies des Productions Végétales
Troisième cycle

Dominante d’Approfondissement PISTv Module Modélisation des plantes

Master Sciences et Technologie du Vivant Mention SAGEP Parcours Agronomie Modules Systèmes de cultures et variétés

Master Sciences du Végétal Mention Sciences du végétal Parcours Ecophysiologie Epidémiologie et Amélioration des Plantes - module Ecophysiologie des Peuplements Végétaux Cultivés - module Modélisation Architecturée des Plantes - module Interaction Génotype Environnement

Autres responsabilités
CNECA Session 5. Membre du bureau.

Commission bourse AgroParisTech

Co-coordinatrice du dispositif "enseignants référents"

Membre de la cellule Veille et Prévention

Publications récentes
. A. Jullien, J.-M. Allirand, A. Mathieu, B. Andrieu, B. Ney. 2009. Variations in leaf mass per area according to N nutrition, plant age, and leaf position reflect ontogenetic plasticity in winter oilseed rape (Brassica napus L.). FieldCropsResearch 114 188-197
. Lassois Ludivine, Bastiaanse Heloïse, Chillet Marc, Jullien Alexandra, Jijakli Haissam and de Lapeyre de Bellaire Luc. 2009. Hand position on the bunch and source-sink ratio influence the level of banana fruit susceptibility to crown rot disease (AAB-2009-0103) accepté à Annals of Applied Biology
. A. Jullien, A. Mathieu, J.-M. Allirand, A. Pinet, P. de Reffye, B. Ney and P.-H. Cournède. Modelling of branch and flower expansion in GreenLab model to account for the whole crop cycle of winter oilseed rape (Brassica Napus L.). PMA09 : The Third International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications - Beijing (CHINA), Nov. 09-13, 2009, 8 pages.