Notice of retraction
Vol. 32, No. 8(2), S&M2292

ISSN (print) 0914-4935
ISSN (online) 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials, Volume 22, Number 5 (2010)
Copyright(C) MYU K.K.
pp. 223-233
S&M804 Research Paper of Special Issue
Published: July 9, 2010

Bioelectric Potential of Pothos under Light-Emitting Diode [PDF]

Shin-ichi Shibata, Takashi Oyabu and Haruhiko Kimura

(Received October 1, 2009; Accepted April 26, 2010)

Keywords: plant bioelectric potential, plant factory, LED, environmental sensing

Plant bioelectric potential changes according to environmental factors such as temperature, humidity, light intensity, and atmospheric pressure. Light is the fundamental factor for plant photosynthesis. In this paper, the relationship between bioelectric potential and the wavelength of emitted light (light-emitting diodes (LEDs): blue, green, red, and white) was examined. The bioelectric potential in darkness was adopted as a control and it was compared with those at various wavelengths. The bioelectric potential was measured as a function of time. Data were recorded every 0.1 s and summed over 1 h. The summation value was adopted as a representative value. The correlation between the bioelectric potential under light emission and that of the control was determined. The correlation coefficient reached a maximum as the bioelectric potential under emission was shifted from 1–3 h of light exposure. The coefficient became lower as the wavelength of emitted light became higher. A coefficient of 0.84 under red light (660 nm) at a shifted time of 3 h was obtained, and 0.7 for green light (525 nm) at a shifted time of 1 h, 0.5 for blue (475 nm) without a shift. A coefficient of over 0.5 was obtained under white light at a shifted time of 1–2 h. The obtained result contributes to our understanding of plant physiology. In addition, it contributes to the development of a plant environmental sensor and a plant factory.

Corresponding author: Shin-ichi Shibata

Cite this article
Shin-ichi Shibata, Takashi Oyabu and Haruhiko Kimura, Bioelectric Potential of Pothos under Light-Emitting Diode, Sens. Mater., Vol. 22, No. 5, 2010, p. 223-233.

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