Physiological Mechanism of Welsh Onion (<i>Allium fistulosum</i> L.) in Response to High Temperature and Waterlogging Stress
In recent years, frequent high temperatures and heavy rainfall in summer in China have led to a large-scale reduction in Welsh onion (<i>Allium fistulosum L.</i>) production. This experiment used “Hanchuan” Welsh onion as test material to analyze the effect of high temperature and waterl...
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MDPI AG
2025-02-01
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| author | Xianxiang Li Ruobing Li Kai Wang Yuwen Kong Yao Lv Bili Cao Song Gao Kang Xu Zijing Chen Kun Xu |
| author_facet | Xianxiang Li Ruobing Li Kai Wang Yuwen Kong Yao Lv Bili Cao Song Gao Kang Xu Zijing Chen Kun Xu |
| author_sort | Xianxiang Li |
| collection | DOAJ |
| description | In recent years, frequent high temperatures and heavy rainfall in summer in China have led to a large-scale reduction in Welsh onion (<i>Allium fistulosum L.</i>) production. This experiment used “Hanchuan” Welsh onion as test material to analyze the effect of high temperature and waterlogging on the dry matter quality, root structure, oxygen species (ROS) metabolism, and photosynthetic performance. The results showed that waterlogging or high-temperature stress could lead to a decrease in dry matter content and root activity in various parts of Welsh onion, significantly increasing the content of reactive oxygen species (ROS) in Welsh onion roots and leaves, accelerating membrane lipid peroxidation, and significantly reduce the chlorophyll content and photosynthetic performance of Welsh onion. Among them, the damage caused by waterlogging and high-temperature interaction stress to Welsh onion is the most significant. On the 8th day of treatment, the net photosynthetic rate (Pn) of high-temperature normal water supply, normal-temperature waterlogging, and high-temperature waterlogging decreased by 53.62%, 26.4%, and 87.59%, respectively, compared to the control. The results of this study provide insight into the extent of damage to Welsh onion under different moisture and temperature conditions, which will help explore scientific methods to alleviate the damage caused by high temperature and waterlogging in Welsh onion in the future. |
| format | Article |
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| issn | 2073-4395 |
| language | English |
| publishDate | 2025-02-01 |
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| series | Agronomy |
| spelling | doaj-art-3d900585447c4be1a58d1ede8f7f3dc42025-08-20T03:11:03ZengMDPI AGAgronomy2073-43952025-02-0115248210.3390/agronomy15020482Physiological Mechanism of Welsh Onion (<i>Allium fistulosum</i> L.) in Response to High Temperature and Waterlogging StressXianxiang Li0Ruobing Li1Kai Wang2Yuwen Kong3Yao Lv4Bili Cao5Song Gao6Kang Xu7Zijing Chen8Kun Xu9College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271002, ChinaCollege of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271002, ChinaCollege of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271002, ChinaCollege of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271002, ChinaCollege of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271002, ChinaCollege of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271002, ChinaCollege of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, ChinaCollaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production in Shandong, Tai’an 271018, ChinaCollege of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271002, ChinaCollege of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an 271002, ChinaIn recent years, frequent high temperatures and heavy rainfall in summer in China have led to a large-scale reduction in Welsh onion (<i>Allium fistulosum L.</i>) production. This experiment used “Hanchuan” Welsh onion as test material to analyze the effect of high temperature and waterlogging on the dry matter quality, root structure, oxygen species (ROS) metabolism, and photosynthetic performance. The results showed that waterlogging or high-temperature stress could lead to a decrease in dry matter content and root activity in various parts of Welsh onion, significantly increasing the content of reactive oxygen species (ROS) in Welsh onion roots and leaves, accelerating membrane lipid peroxidation, and significantly reduce the chlorophyll content and photosynthetic performance of Welsh onion. Among them, the damage caused by waterlogging and high-temperature interaction stress to Welsh onion is the most significant. On the 8th day of treatment, the net photosynthetic rate (Pn) of high-temperature normal water supply, normal-temperature waterlogging, and high-temperature waterlogging decreased by 53.62%, 26.4%, and 87.59%, respectively, compared to the control. The results of this study provide insight into the extent of damage to Welsh onion under different moisture and temperature conditions, which will help explore scientific methods to alleviate the damage caused by high temperature and waterlogging in Welsh onion in the future.https://www.mdpi.com/2073-4395/15/2/482Welsh onion (<i>Allium fistulosum L.</i>)high-temperature stresswaterlogging stress |
| spellingShingle | Xianxiang Li Ruobing Li Kai Wang Yuwen Kong Yao Lv Bili Cao Song Gao Kang Xu Zijing Chen Kun Xu Physiological Mechanism of Welsh Onion (<i>Allium fistulosum</i> L.) in Response to High Temperature and Waterlogging Stress Agronomy Welsh onion (<i>Allium fistulosum L.</i>) high-temperature stress waterlogging stress |
| title | Physiological Mechanism of Welsh Onion (<i>Allium fistulosum</i> L.) in Response to High Temperature and Waterlogging Stress |
| title_full | Physiological Mechanism of Welsh Onion (<i>Allium fistulosum</i> L.) in Response to High Temperature and Waterlogging Stress |
| title_fullStr | Physiological Mechanism of Welsh Onion (<i>Allium fistulosum</i> L.) in Response to High Temperature and Waterlogging Stress |
| title_full_unstemmed | Physiological Mechanism of Welsh Onion (<i>Allium fistulosum</i> L.) in Response to High Temperature and Waterlogging Stress |
| title_short | Physiological Mechanism of Welsh Onion (<i>Allium fistulosum</i> L.) in Response to High Temperature and Waterlogging Stress |
| title_sort | physiological mechanism of welsh onion i allium fistulosum i l in response to high temperature and waterlogging stress |
| topic | Welsh onion (<i>Allium fistulosum L.</i>) high-temperature stress waterlogging stress |
| url | https://www.mdpi.com/2073-4395/15/2/482 |
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