Zinc oxide nanoparticle morphology modify germination and early growth of bell pepper seedlings: Zinc oxide nanoparticle morphology

Guadalupe Magdaleno García; Antonio Juárez Maldonado; Rebeca Betancourt Galindo; Susana González Morales; Marcelino Cabrera De La Fuente; Miriam Sánchez Vega; ALONSO MENDEZ

doi:10.18633/biotecnia.v25i3.1908

Authors

G Magdaleno García Doctorado en Ciencias en Agricultura Protegida, Departamento de Horticultura
A Juárez Maldonado Departamento de Botánica, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahuila, México.
R Betancourt Galindo Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo No. 140, Saltillo 25294, Coahuila, México
S González Morales Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahui-la, México
M Cabrera de la Fuente Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahui-la, México
M Sánchez Vega Departamento de Parasitología, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahuila, México
A Méndez Universidad Autónoma Agraria Antonio Narro https://orcid.org/0000-0002-4356-0409

DOI:

https://doi.org/10.18633/biotecnia.v25i3.1908

Keywords:

Nanoparticles, Morphology, Zinc, Seed priming, Bell pepper

Abstract

In recent years, interest in nutrient and nanoscale biostimulant use in agriculture to improve seed germination and crop productivity has increased. Nanoparticle seed priming has improved growth and quality in crops of agricultural value. The following study shows the effect of seed priming on bell pepper RZ F1 (35-71) with zinc oxide nanoparticles (ZnO NPs) with different morphology: spherical and hexagonal. Bell pepper seeds were primed with ZnO NPs at different doses, 50 and 100 mg L-1. The study was carried out in two phases. The first phase consisted of an in-vitro study in a germination chamber (28°C), where early growth variables were assessed: germination percentage, radicle, plumule and hypocotyl length; while the second phase was carried out under greenhouse conditions, where variables such as plant height, stem diameter, dry weight, leaf area, total chlorophyll and phenols were assessed, 45 days after sowing. Seed priming with different morphology ZnO NPs showed a positive influence, 100 mg L-1 dose giving the best results for early growth parameters, as well as for plant height, stem diameter, leaf area, total chlorophyll and phenolic content. These results suggest that ZnO NPs can be considered a promising seed preparation agent to improve germination, early growth parameters, and chlorophyll and phenolic contents.

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Author Biographies

G Magdaleno García, Doctorado en Ciencias en Agricultura Protegida, Departamento de Horticultura

Estudiante de Doctorado en Cuencias en Agricultura Protegida

Departamento de Horticultura

Universidad Autónoma Agraria Antonio Narro

A Juárez Maldonado, Departamento de Botánica, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahuila, México.

Profesor Investigador

Departamento de Botánica

R Betancourt Galindo, Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo No. 140, Saltillo 25294, Coahuila, México

Investigadora Titular

Centro de Investigación en Química Aplicada

S González Morales, Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahui-la, México

Investigadora Catedratica

CONACYT- Universidad Autónoma Agraria Antonio Narro

M Cabrera de la Fuente, Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahui-la, México

Profesor Investigador

Universidad Autónoma Agraria Antonio Narro

M Sánchez Vega, Departamento de Parasitología, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Coahuila, México

Investigadora Catedrática

CONACYT-Universidad Autónoma Agraria Antonio Narro

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Zinc oxide nanoparticle morphology modify germination and early growth of bell pepper seedlings