MORPHOLOGICAL CHARACTERIZATION OF WALNUT (Juglans regia L.) CONSERVED IN BACKYARDS OF THE SIERRA NEVADA IN PUEBLA, MEXICO. AP [Internet]. 2018 Aug. 1 [cited 2026 Jun. 11];10(7). Available from: https://www.revista-agroproductividad.org/index.php/agroproductividad/article/view/1061