Proceedings of the International Tea Symposium (InTSym100 2025)

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Evaluation of Biochemical Composition in Field-Grown Tea (Cultiva: TRI 2043) Using Agrophotovoltaic-Driven LED Lighting

Authors
D. G. D. Kavishka1, C. K. Beneragama1, L. D. B. Suriyagoda1, R. M. U. Sooriyabandara2, K. M. Mohotti3, S. A. Weerasooriya4, H. M. P. C. Kumarihami1, J. B. Ekanayake2, L. Samaranayaka2, A. J. Mohotti1, *
1Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Kandy, Sri Lanka
2Department of Electrical and Electronics Engineering, Faculty of Engineering, University of Peradeniya, Kandy, Sri Lanka
3Formerly Tea Research Institute of Sri Lanka, Talawakelle, Sri Lanka
4Department of Agricultural Economics and Business Management, Faculty of Agriculture, University of Peradeniya, Kandy, Sri Lanka
*Corresponding author. Email: mohottij@agri.pdn.ac.lk
Corresponding Author
A. J. Mohotti
Available Online 15 April 2026.
DOI
10.2991/978-94-6239-646-3_18How to use a DOI?
Keywords
Tea (Camelia sinensis L. (O.) Kuntze); Agrophotovoltaic system; Tea quality
Abstract

Agrophotovoltaic (APV) systems integrate agriculture and solar energy generation on the same land, offering sustainable solutions for food and energy production. In order to stay competitive in the global market for specialty teas, it is beneficial to enhance the biochemical composition of the Sri Lankan tea cultivars. This study examined the effects of wavelength provided by photovoltaic-powered LED light on yield and quality parameters of mature field-grown tea plants (cultivar TRI 2043), mainly focusing on pigment and polyphenol contents. An APV system-powered LED lights provided blue and red lights to tea plants. Sunlight served as the control. Yield, shoot density, and anthocyanin, polyphenol, and chlorophyll contents in tea shoots were measured. The light spectrum measurements showed that the control plants received natural light at 317-886 nm, while plants under APV systems received blue light at 420-460 nm, and red light at 600-700 nm. The anthocyanin was highest in the 1st and 2nd leaves, while polyphenol peaked in the bud and declined with leaf maturity. Chlorophyll content increased with leaf maturity. The anthocyanin content in the bud, 1st and 2nd leaves was significantly reduced (p<0.05) under blue light compared to the control, while red light showed no significant change. Blue light significantly increased (p<0.05) polyphenol, chlorophyll a, and total chlorophyll contents (p<0.05). Neither of the light treatments significantly affected (p<0.05) tea yield or shoot density. In conclusion, blue light can be effectively used to increase chlorophyll and polyphenol levels in tea leaves. The wavelength effects on anthocyanin content warrants further study.

Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Tea Symposium (InTSym100 2025)
Series
Advances in Biological Sciences Research
Publication Date
15 April 2026
ISBN
978-94-6239-646-3
ISSN
2468-5747
DOI
10.2991/978-94-6239-646-3_18How to use a DOI?
Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - D. G. D. Kavishka
AU  - C. K. Beneragama
AU  - L. D. B. Suriyagoda
AU  - R. M. U. Sooriyabandara
AU  - K. M. Mohotti
AU  - S. A. Weerasooriya
AU  - H. M. P. C. Kumarihami
AU  - J. B. Ekanayake
AU  - L. Samaranayaka
AU  - A. J. Mohotti
PY  - 2026
DA  - 2026/04/15
TI  - Evaluation of Biochemical Composition in Field-Grown Tea (Cultiva: TRI 2043) Using Agrophotovoltaic-Driven LED Lighting
BT  - Proceedings of the International Tea Symposium (InTSym100 2025)
PB  - Atlantis Press
SP  - 317
EP  - 330
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6239-646-3_18
DO  - 10.2991/978-94-6239-646-3_18
ID  - Kavishka2026
ER  -