Some Parameter Estimation Issues in Functional-Structural Plant Modelling P.-H. Cournède, V. Letort, A. Mathieu, M. Z. Kang, S. Lemaire, S. Trevezas, F. Houllier and P. de Reffye Math. Model. Nat. Phenom., 6 2 (2011) 133-159 Published online: 01 March 2011 DOI: 10.1051/mmnp/20116205