Design of Spectral Absorbance-Based Electronic Reader for Chlorophyll Measurement

International Journal of Electrical and Electronics Engineering
© 2023 by SSRG - IJEEE Journal
Volume 10 Issue 11
Year of Publication : 2023
Authors : Hema Kale, Yogita Nafde, Nitin Dhote, Swapna Choudhary
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How to Cite?

Hema Kale, Yogita Nafde, Nitin Dhote, Swapna Choudhary, "Design of Spectral Absorbance-Based Electronic Reader for Chlorophyll Measurement," SSRG International Journal of Electrical and Electronics Engineering, vol. 10,  no. 11, pp. 46-55, 2023. Crossref, https://doi.org/10.14445/23488379/IJEEE-V10I11P105

Abstract:

Sensor-based Soil Plant Analysis Development (SPAD) meters are costly, and traditional chemical methods are complex and time-consuming for measuring the amount of chlorophyll in plant leaves. A simpler, less expensive handheld electronic chlorophyll reader is designed, built, and tested in various settings. Spectral absorption by chlorophyll in living leaves is the parameter for measuring chlorophyll. The highest absorption by leaf chlorophyll is shown in Red LEDs. This characteristic allows Red LED spectrum absorption measurements for various plant leaves. Then, the chlorophyll content is measured using Arnon’s method in the Botany lab for the same leaves. To authenticate the Electronic Reader design, spectral absorbance readings for Red LED and chlorophyll content measurement by Arnon’s method are compared for different leaves. Also, a comparison of CCI readings by the proposed reader and SPAD meter is done for cotton plant leaves. It is found that the Electronic Reader is working correctly.

Keywords:

CCI, Leaf absorbance, SPAD, CCM, Spectral absorbance.

References:

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