Phenotypic plasticity of tree progenies of Pinus pseudostrobus Lindl. superiors in resin production in nursery Authors: Chávez-García, Alicia Sagrario, Hernández-Ramos, Jonathan, Muñoz-Flores, Hipólito Jesús, García-Magaña, J. Jesús, Gómez-Cárdenas, Martín, Gutiérrez-Contreras, Maribel