Ramírez , H., Malendres-Álvarez, A. I., Zermeño-González, A. ., Jasso-Cantú, D., & Villarreal-Quintanilla, J. ´Ángel . (2021). Influence of P-Ca on cytokinins in xylem sap and on stomatal resistance in apple. Ecosistemas Y Recursos Agropecuarios, 8(1). https://doi.org/10.19136/era.a8n1.2580