PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
The Most Suitable Calcium Concentration for Growth Varies among Different Tree Species – Taking Pinus tabuliformis, Pinus sylvestris var. mongolica, Populus, and Morus alba as Examples
Version 1
: Received: 29 April 2023 / Approved: 29 April 2023 / Online: 29 April 2023 (07:44:57 CEST)
How to cite:
Li, H.; Zhao, Y.; Weng, X.; Zhou, Y.; Zhang, S.; Liu, L.; Pei, J. The Most Suitable Calcium Concentration for Growth Varies among Different Tree Species – Taking Pinus tabuliformis, Pinus sylvestris var. mongolica, Populus, and Morus alba as Examples. Preprints2023, 2023041224. https://doi.org/10.20944/preprints202304.1224.v1
Li, H.; Zhao, Y.; Weng, X.; Zhou, Y.; Zhang, S.; Liu, L.; Pei, J. The Most Suitable Calcium Concentration for Growth Varies among Different Tree Species – Taking Pinus tabuliformis, Pinus sylvestris var. mongolica, Populus, and Morus alba as Examples. Preprints 2023, 2023041224. https://doi.org/10.20944/preprints202304.1224.v1
Li, H.; Zhao, Y.; Weng, X.; Zhou, Y.; Zhang, S.; Liu, L.; Pei, J. The Most Suitable Calcium Concentration for Growth Varies among Different Tree Species – Taking Pinus tabuliformis, Pinus sylvestris var. mongolica, Populus, and Morus alba as Examples. Preprints2023, 2023041224. https://doi.org/10.20944/preprints202304.1224.v1
APA Style
Li, H., Zhao, Y., Weng, X., Zhou, Y., Zhang, S., Liu, L., & Pei, J. (2023). The Most Suitable Calcium Concentration for Growth Varies among Different Tree Species – Taking <em>Pinus tabuliformis</em>, <em>Pinus sylvestris</em> var. <em>mongolica</em>, <em>Populus</em>, and <em>Morus alba</em> as Examples. Preprints. https://doi.org/10.20944/preprints202304.1224.v1
Chicago/Turabian Style
Li, H., Liying Liu and Jiubo Pei. 2023 "The Most Suitable Calcium Concentration for Growth Varies among Different Tree Species – Taking <em>Pinus tabuliformis</em>, <em>Pinus sylvestris</em> var. <em>mongolica</em>, <em>Populus</em>, and <em>Morus alba</em> as Examples" Preprints. https://doi.org/10.20944/preprints202304.1224.v1
Abstract
Ca2+ is a crucial second messenger in plant cells, playing a vital role in various physiological and biochemical processes, including plant growth and development, photosynthesis, and enzyme regulation. Exogenous calcium concentration can have different effects on plant growth. This study aimed to investigate the optimal calcium concentration for the growth of four tree species, namely Pinus tabuliformis, Pinus sylvestris var. mongolica, Populus, and Morus alba seedlings, and whether the optimal calcium concentration varies among different tree species. The study utilized five calcium concentration gradients (0, 100, 200, 400, 800 mg·kg-1) for each species with three repeated treatments. Various growth indexes, photosynthetic parameters, chlorophyll fluorescence parameters, water use efficiency, and antioxidant enzyme activities were assessed to determine each species' calcium concentration requirements. The results showed that exogenous calcium significantly affected the growth and development of each seedling. The growth, biomass, photosynthetic parameters, photosynthetic products, photosynthetic pigments, water use efficiency, and antioxidant enzyme activity all increased initially and then decreased with increasing calcium concentration. Leaf calcium concentration also increased with the exogenous calcium content. Thus, there is an optimal calcium concentration for plant growth, and high or low calcium concentration is not conducive to plant growth. Furthermore, the study found that different tree species have varying optimal calcium concentrations. The optimal calcium concentration for Pinus tabuliformis, Pinus sylvestris var. mongolica, Populus, and Morus alba seedlings was 100, 100, 200, and 400 mg·kg-1, respectively. Finally, the study revealed that broadleaf species require higher calcium concentrations than coniferous species.
Keywords
Optimum calcium concentration; growth; photosynthesis; water use efficiency; stress resistance
Subject
Biology and Life Sciences, Forestry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
