Study of spectral reflectance to estimate fluorine concentration in maize leaf

Authors

  • Fátima Ojeda-Rodríguez Departamento de Ingeniería Mecánica Agrícola de la Universidad Autónoma Agraria Antonio Narro. Calzada Antonio Narro 1923. Buenavista, CP 25315. Saltillo, Coahuila, México.
  • Adriana Saldaña-Robles Departamento de Ingeniería Mecánica Agrícola de la Universidad Autónoma Agraria Antonio Narro. Calzada Antonio Narro 1923. Buenavista, CP 25315. Saltillo, Coahuila, México.
  • Mónica Trejo-Durán Departamento de Estudios Multidisciplinario, División de Ingenierías, Campus Irapuato-Salamanca de la Universidad de Guanajuato. Av. Universidad, col. Yacatita, CP 36500. Yuriria, Guanajuato.
  • Glenda Edith Cea-Barcia Departamento de Ingeniería Ambiental, de la Universidad de Guanajuato, Ex Hacienda El Copal Km 9, Carretera Irapuato-Silao, A.P. 311, CP 36500. Irapuato, Guanajuato.
  • Luis Pérez-Moreno Departamento de Agronomía de la División de Ciencias de la Vida (diciva), de la Universidad de Guanajuato, Ex Hacienda El Copal Km 9, Carretera Irapuato-Silao, A.P. 311, CP 36500. Irapuato, Guanajuato.
  • Alberto Saldaña-Robles Departamento de Ingeniería Mecánica Agrícola de la Universidad Autónoma Agraria Antonio Narro. Calzada Antonio Narro 1923. Buenavista, CP 25315. Saltillo, Coahuila, México.
  • Jesús Alfonso Laguna-Pérez Departamento de Ingeniería Mecánica Agrícola de la Universidad Autónoma Agraria Antonio Narro. Calzada Antonio Narro 1923. Buenavista, CP 25315. Saltillo, Coahuila, México.
  • Noé Saldaña-Robles Departamento de Ingeniería Mecánica Agrícola de la Universidad Autónoma Agraria Antonio Narro. Calzada Antonio Narro 1923. Buenavista, CP 25315. Saltillo, Coahuila, México.

DOI:

https://doi.org/10.59741/agraria.v19iSE1.24

Keywords:

spectral signature, wavelength, fluorine

Abstract

Fluorine (F) is one of the high risk chemical elements due to its high toxicity. Overuse of fluoride-contaminated groundwater for irrigation is prevalent in many fluoride-endemic areas, greatly affecting crops. In particular, corn is one of the basic foods for humans since it provides proteins and carbohydrates. Remote sensing techniques have been used successfully in the detection of heavy metals in
different crops and are based on spectral reflectance, a characteristic known as spectral signature. This work aimed to evaluate the effectiveness of reflectance in the visible and near infrared to estimate the concentration of fluorine in corn plants. Four levels of fluoride were induced in corn plants at 0, 5, 10 and 20 ppm. The reflectance spectra of the sheets were acquired in a wavelength range of 190 to 1100 nm. The fluorine concentration in the corn leaf was quantified, the chlorophyll concentration in the corn leaf was quantified and the growth of the plant was measured. The maximum relationship between reflectance and fluorine concentration in plant is seen at R2 of 0.40, at a wavelength of 405 nm, and the maximum relationship between the first derivative and fluorine concentration with an R2 of 0.67 at a length of 255 nm wave. Compared to the blank, the chlorophyll A concentration decreased by 17.88% for the 5 ppm concentration, 20.53% for the 10 ppm concentration, and 18.98% for the 20 ppm concentration treatment, and the blank at week 5 was observe greater growth with each of the fluoride treatments.

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References

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Published

2022-06-02

Issue

No. SE1 (2022): Junio 2022 - EDICIÓN ESPECIAL

Section

Artículos de divulgación

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This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

How to Cite

Study of spectral reflectance to estimate fluorine concentration in maize leaf. (2022). Agraria, 19(SE1), 40. https://doi.org/10.59741/agraria.v19iSE1.24

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