The Positive Effects of Increased Light Intensity on Growth and Photosynthetic Performance of Tomato Seedlings in Relation to Night Temperature Level
Light and temperature are related to the growth and development of plants as well as their energy consumption in plant factories. However, most of the studies to date have focused on light and temperature extremes, while the adaptive responses and underlying mechanisms of plants to non-stress light...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/2/343 |
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| author | Jiaohong Song Zheng Chen Aoxue Zhang Mengli Wang Mohammad Shah Jahan Yixuan Wen Xiaoying Liu |
| author_facet | Jiaohong Song Zheng Chen Aoxue Zhang Mengli Wang Mohammad Shah Jahan Yixuan Wen Xiaoying Liu |
| author_sort | Jiaohong Song |
| collection | DOAJ |
| description | Light and temperature are related to the growth and development of plants as well as their energy consumption in plant factories. However, most of the studies to date have focused on light and temperature extremes, while the adaptive responses and underlying mechanisms of plants to non-stress light intensity (LI) and night temperature (NT) largely remain elusive. Here, we investigated the growth and physiological responses of tomatoes grown under three LI regimes of 250 (L<sub>L</sub>), 300 (L<sub>M</sub>), and 350 (L<sub>H</sub>) μmol m<sup>−2</sup> s<sup>−1</sup>, respectively, combined with two NT conditions. The results revealed that increased LI comprehensively improved tomato growth and physiological status at lower NT levels, but the growth stimulations induced by increasing LI were limited by higher NT. In addition, the lower NT at L<sub>M</sub> and L<sub>H</sub> conferred a relatively better endogenous physiological condition and significantly promoted tomato growth, but the higher NT significantly accelerated shoot growth at L<sub>L</sub>, indicating a compensation of higher NT for low light induced growth restriction. Taken together, the current study suggests that the adaptation mechanism of tomato plants to higher NT varied with LI levels, and higher LI plus lower NT would be an effective strategy to improve tomato growth. |
| first_indexed | 2024-03-09T22:51:44Z |
| format | Article |
| id | doaj.art-d71ef2c4a44d4cd6905748d439c08998 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T22:51:44Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-d71ef2c4a44d4cd6905748d439c089982023-11-23T18:20:22ZengMDPI AGAgronomy2073-43952022-01-0112234310.3390/agronomy12020343The Positive Effects of Increased Light Intensity on Growth and Photosynthetic Performance of Tomato Seedlings in Relation to Night Temperature LevelJiaohong Song0Zheng Chen1Aoxue Zhang2Mengli Wang3Mohammad Shah Jahan4Yixuan Wen5Xiaoying Liu6College of Agriculture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Agriculture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Agriculture, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Agriculture, Nanjing Agricultural University, Nanjing 210095, ChinaLight and temperature are related to the growth and development of plants as well as their energy consumption in plant factories. However, most of the studies to date have focused on light and temperature extremes, while the adaptive responses and underlying mechanisms of plants to non-stress light intensity (LI) and night temperature (NT) largely remain elusive. Here, we investigated the growth and physiological responses of tomatoes grown under three LI regimes of 250 (L<sub>L</sub>), 300 (L<sub>M</sub>), and 350 (L<sub>H</sub>) μmol m<sup>−2</sup> s<sup>−1</sup>, respectively, combined with two NT conditions. The results revealed that increased LI comprehensively improved tomato growth and physiological status at lower NT levels, but the growth stimulations induced by increasing LI were limited by higher NT. In addition, the lower NT at L<sub>M</sub> and L<sub>H</sub> conferred a relatively better endogenous physiological condition and significantly promoted tomato growth, but the higher NT significantly accelerated shoot growth at L<sub>L</sub>, indicating a compensation of higher NT for low light induced growth restriction. Taken together, the current study suggests that the adaptation mechanism of tomato plants to higher NT varied with LI levels, and higher LI plus lower NT would be an effective strategy to improve tomato growth.https://www.mdpi.com/2073-4395/12/2/343cherry tomatocontrolled environmentgrowthlight quantitynight temperaturedistribution of light energy |
| spellingShingle | Jiaohong Song Zheng Chen Aoxue Zhang Mengli Wang Mohammad Shah Jahan Yixuan Wen Xiaoying Liu The Positive Effects of Increased Light Intensity on Growth and Photosynthetic Performance of Tomato Seedlings in Relation to Night Temperature Level Agronomy cherry tomato controlled environment growth light quantity night temperature distribution of light energy |
| title | The Positive Effects of Increased Light Intensity on Growth and Photosynthetic Performance of Tomato Seedlings in Relation to Night Temperature Level |
| title_full | The Positive Effects of Increased Light Intensity on Growth and Photosynthetic Performance of Tomato Seedlings in Relation to Night Temperature Level |
| title_fullStr | The Positive Effects of Increased Light Intensity on Growth and Photosynthetic Performance of Tomato Seedlings in Relation to Night Temperature Level |
| title_full_unstemmed | The Positive Effects of Increased Light Intensity on Growth and Photosynthetic Performance of Tomato Seedlings in Relation to Night Temperature Level |
| title_short | The Positive Effects of Increased Light Intensity on Growth and Photosynthetic Performance of Tomato Seedlings in Relation to Night Temperature Level |
| title_sort | positive effects of increased light intensity on growth and photosynthetic performance of tomato seedlings in relation to night temperature level |
| topic | cherry tomato controlled environment growth light quantity night temperature distribution of light energy |
| url | https://www.mdpi.com/2073-4395/12/2/343 |
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