Effects of Red and Blue LED Light at Night on Growth and Leaf Quality of Tea Plants

WANG Jia-zhen; ZHANG Xin-yu; JIN Xin; HUANG Jia-chun; CHENG Ying-ying

doi:10.19303/j.issn.1008-0384.2019.01.008

Volume 34 Issue 1

Mar. 2019

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Article Navigation > Fujian Journal of Agricultural Sciences > 2019 > 34(1): 46-52

WANG Jia-zhen, ZHANG Xin-yu, JIN Xin, HUANG Jia-chun, CHENG Ying-ying. Effects of Red and Blue LED Light at Night on Growth and Leaf Quality of Tea Plants[J]. Fujian Journal of Agricultural Sciences, 2019, 34(1): 46-52. doi: 10.19303/j.issn.1008-0384.2019.01.008

Citation:

WANG Jia-zhen, ZHANG Xin-yu, JIN Xin, HUANG Jia-chun, CHENG Ying-ying. Effects of Red and Blue LED Light at Night on Growth and Leaf Quality of Tea Plants[J]. Fujian Journal of Agricultural Sciences, 2019, 34(1): 46-52. doi: 10.19303/j.issn.1008-0384.2019.01.008

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Effects of Red and Blue LED Light at Night on Growth and Leaf Quality of Tea Plants

doi: 10.19303/j.issn.1008-0384.2019.01.008

1.
School of Biology and Agriculture Science and Technology, Zunyi Normal University, Zunyi, Guizhou 563000, China
2.
School of Physical Science, University of Science and Technology of Chian, Hefei, Anhui 230026, China
3.
School of Physics and Electronic Science, Zunyi Normal University, Zunyi, Guizhou 563000, China

Received Date: 2018-10-12
Rev Recd Date: 2018-11-02
Publish Date: 2019-01-28

Abstract

Abstract

Objective Effects of red and blue LEDs applied at night in early spring on the growth and tea quality of Qianmei 601 (Camellia sinensis) were studied for the application at plantations in Guizhou. Method Red and blue LEDs at a ratio of 0.81, 1.65 or 2.1 were shone on the tea plants at night for 21 days at a plantation for the experimentation. Result The lighting promoted the bud and leave growth and improved the tea quality. Different red-to-blue light ratios produced different results. The treatment with a 0.81 ratio significantly increased the fresh leaf weight, bud density, total chlorophylls, total polyphenols, and free amino acids in the leaves and decreased the polyphenols/amino acids ratio as compared to control that grew under natural conditions. Conclusion Supplementing light at night with red and blue LEDs at 0.81 ratio on tea plants in early spring when the sunlight and temperature are relatively low appeared beneficial for the biomass buildup and quality improvement.
- Tea plants,
- light-emitting diodes,
- supplement,
- biochemical components,
- spectral energy distribution,
- polyphenols/amino acids ratio

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References(23)

References

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