SÍNTESIS DE ÓXIDO DE ZINC NANOESTRUCURADO Y SU EFECTO EN LA GERMINACIÓN DE SEMILLAS DE MAÍZ (Zea mays)
Keywords:
nanostructured zinc oxide, microwave, seed germination, cornAbstract
Zinc oxide (ZnO) is an environmentally friendly metal oxide, it can be synthesized by various methods, stand out microwave-assisted heating. The objective of the present work was to synthesize and characterize the ZnO nanostructures by the microwave-assisted heating method and apply them in corn germination. Two NaOH concentrations and two reaction times were compared. It was found that the reaction kinetics of ZnO depends on the NaOH concentration and the reaction time. A band gap between 3.01 and 3.13 eV was obtained. The morphology was prismatic hexagons and the sizes of ZnO had a strong reaction time dependence. In the seed germination process, an improvement was observed in the parameters studied concerning the control sample: root length, coleoptile length, coleoptile diameter, and vigor index, as well as a considerable presence of root hairs without modifying the chemical composition. of the seeds. Therefore, the present work provides important information on the synthesis process of ZnO nanostructures and their application in seed germination to avoid the use of toxic chemical agents.
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