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Effects of Different Light Qualities on the Growth Characteristics of Populus trinervis

Jiaqi Li1,2, Zhensheng Qiao1,2, Dan Zong1,2, Chengzhong He1,2,3,*

1 Key Laboratory for Forest Genetics and Tree Improvement and Propagation in Universities of Yunnan Province, Southwest Forestry University, Kunming, China
2 Key Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, China
3 Key Laboratory for Forestry Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, China

* Corresponding Author: Chengzhong He. Email: email

(This article belongs to the Special Issue: Abiotic Stress Impacts on Plant Physiology and Their Alleviation)

Phyton-International Journal of Experimental Botany 2024, 93(5), 1043-1056. https://doi.org/10.32604/phyton.2024.050637

Abstract

Populus trinervis is native to China and plays an irreplaceable role in maintaining the ecological balance of boreal and temperate forests. P. trinervis mainly grows in high-altitude areas. At present, there are limited studies on the response of P. trinervis to different light qualities, so it is necessary to investigate the photosynthetic physiological changes of P. trinervis in different light environments. In our study, P. trinervis was grown for 8 months under light filtered by three different colored films. The three treatments were blue film, green film, and white plastic film. The effects of blue (B), green (G), and white (W) light on photosynthetic pigment content, absolute growth, photosynthetic parameters, soluble sugar content, and chlorophyll fluorescence parameters were studied, respectively. Compared to the W treatment, the chlorophyll a and b, carotenoids, total chlorophyll content (a+b), absolute growth of seedling height, net photosynthetic rate (P), water use efficiency (WUE), total soluble sugars, sucrose, and nonphotochemical quenching (NPQ) of P. trinervis were significantly increased under B treatment. Meanwhile, chlorophyll a and b, carotenoids, total chlorophyll (a+b), transpiration rate (Tr), intercellular CO concentration (C), stomatal conductance (g), absolute growth of seedling height and leaf length, reducing sugar, total soluble sugar content, and NPQ were significantly increased under G treatment. The results showed that the absolute growth and chlorophyll content of P. trinervis were increased under B light, while the sugar and photosynthetic parameters were increased under G light. Additional studies may look into how B light impacts absolute growth and promotional mechanisms, as well as how G light affects the accumulation of sugar levels.

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APA Style
Li, J., Qiao, Z., Zong, D., He, C. (2024). Effects of different light qualities on the growth characteristics of populus trinervis. Phyton-International Journal of Experimental Botany, 93(5), 1043-1056. https://doi.org/10.32604/phyton.2024.050637
Vancouver Style
Li J, Qiao Z, Zong D, He C. Effects of different light qualities on the growth characteristics of populus trinervis. Phyton-Int J Exp Bot. 2024;93(5):1043-1056 https://doi.org/10.32604/phyton.2024.050637
IEEE Style
J. Li, Z. Qiao, D. Zong, and C. He "Effects of Different Light Qualities on the Growth Characteristics of Populus trinervis," Phyton-Int. J. Exp. Bot., vol. 93, no. 5, pp. 1043-1056. 2024. https://doi.org/10.32604/phyton.2024.050637



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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