1 Journal of Agricultural Sciences Research ISSN 2764-0973 DOI 10.22533/at.ed.973332329032 Journal of Agricultural Sciences Research v. 3, n. 3, 2023 All content in this magazine is licensed under a Creative Com- mons Attribution License. Attri- bution-Non-Commercial-Non- Derivatives 4.0 International (CC BY-NC-ND 4.0). PHYTO-TOXICITY BY NANOTUBE OF CARBON MULTI WALLS AND GRAPHITE OXIDE NANOPARTICLES IN PLANTS OF RAPHANUS SATIVUS Ricardo Hugo Lira-Saldivar Department of Biosystems and Agrotechnology, Center for Applied Chemistry Research (CIQA) B. Méndez-Argüello Department of Biosystems and Agrotechnology, Center for Applied Chemistry Research (CIQA) I. Vera-Reyes Department of Biosystems and Agrotechnology, Center for Applied Chemistry Research (CIQA) CONACYT-CIQA Chairs G. De los Santos-Villarreal Polymer Synthesis Department (CIQA), Saltillo, Coahuila, Mexico