The impact of water level changes on the growth and physiology of Arundo donax var. versicolor
AbstractIn order to investigate the effects of water level changes on the growth and physiology of Arundo donax var. versicolor and to understand its adaptive mechanisms to water level fluctuations, this study was conducted. A. donax var. versicolor was selected as the experimental species, and a du...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-07-01
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| Series: | Journal of Freshwater Ecology |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/02705060.2023.2291388 |
| _version_ | 1797393253926961152 |
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| author | Kai-jing Xin Huang-yu Bao Rong-hua Liang Xiao-jia Tang Na Guan Yun Cao |
| author_facet | Kai-jing Xin Huang-yu Bao Rong-hua Liang Xiao-jia Tang Na Guan Yun Cao |
| author_sort | Kai-jing Xin |
| collection | DOAJ |
| description | AbstractIn order to investigate the effects of water level changes on the growth and physiology of Arundo donax var. versicolor and to understand its adaptive mechanisms to water level fluctuations, this study was conducted. A. donax var. versicolor was selected as the experimental species, and a dual-pot method was employed to simulate both rising and falling water level conditions. The study analyzed morphological characteristics (plant height, stem diameter, leaf traits, root traits), biomass, and photosynthetic features (chlorophyll a, chlorophyll b, chlorophyll a + b, carotenoids) of A. donax var. versicolor under these two water level conditions. The results revealed that (1) under the condition of rising water level, the morphological characteristics and chlorophyll content showed an overall trend of increasing initially and then decreasing with the increase of the rate. The growth rate of 0.2–0.4 cm/d groups were better, while exceeding its tolerance range led to a decrease in photosynthetic pigment content and even cell inactivation. (2) falling water level were more complex, with plant height, stem diameter, leaf length, leaf width, and leaf area being higher in the 0.8–1 cm/d groups, but values for leaf number and root characteristics were lower. This suggests that moderate stress can promote the growth of A. donax var. versicolor, but in the later stages, it can lead to leaf yellowing, root shrinkage, and even death. |
| first_indexed | 2024-03-08T23:59:36Z |
| format | Article |
| id | doaj.art-463c14b9c9e54a5dae74a4f2235f08d6 |
| institution | Directory Open Access Journal |
| issn | 0270-5060 2156-6941 |
| language | English |
| last_indexed | 2024-03-08T23:59:36Z |
| publishDate | 2023-07-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Freshwater Ecology |
| spelling | doaj.art-463c14b9c9e54a5dae74a4f2235f08d62023-12-12T20:20:41ZengTaylor & Francis GroupJournal of Freshwater Ecology0270-50602156-69412023-07-0138110.1080/02705060.2023.2291388The impact of water level changes on the growth and physiology of Arundo donax var. versicolorKai-jing Xin0Huang-yu Bao1Rong-hua Liang2Xiao-jia Tang3Na Guan4Yun Cao5School of Geography and Environment, Jiangxi Normal University, Nanchang, Jiangxi, P. R. ChinaCollege of Tourism and Geography, Jiujiang University, Jiujiang, Jiangxi, P. R. ChinaSchool of Geography and Environment, Jiangxi Normal University, Nanchang, Jiangxi, P. R. ChinaSchool of Geography and Environment, Jiangxi Normal University, Nanchang, Jiangxi, P. R. ChinaSchool of Geography and Environment, Jiangxi Normal University, Nanchang, Jiangxi, P. R. ChinaSchool of Geography and Environment, Jiangxi Normal University, Nanchang, Jiangxi, P. R. ChinaAbstractIn order to investigate the effects of water level changes on the growth and physiology of Arundo donax var. versicolor and to understand its adaptive mechanisms to water level fluctuations, this study was conducted. A. donax var. versicolor was selected as the experimental species, and a dual-pot method was employed to simulate both rising and falling water level conditions. The study analyzed morphological characteristics (plant height, stem diameter, leaf traits, root traits), biomass, and photosynthetic features (chlorophyll a, chlorophyll b, chlorophyll a + b, carotenoids) of A. donax var. versicolor under these two water level conditions. The results revealed that (1) under the condition of rising water level, the morphological characteristics and chlorophyll content showed an overall trend of increasing initially and then decreasing with the increase of the rate. The growth rate of 0.2–0.4 cm/d groups were better, while exceeding its tolerance range led to a decrease in photosynthetic pigment content and even cell inactivation. (2) falling water level were more complex, with plant height, stem diameter, leaf length, leaf width, and leaf area being higher in the 0.8–1 cm/d groups, but values for leaf number and root characteristics were lower. This suggests that moderate stress can promote the growth of A. donax var. versicolor, but in the later stages, it can lead to leaf yellowing, root shrinkage, and even death.https://www.tandfonline.com/doi/10.1080/02705060.2023.2291388Wetland plantsArundo donax var. versicolorwater level changessimulation experiment |
| spellingShingle | Kai-jing Xin Huang-yu Bao Rong-hua Liang Xiao-jia Tang Na Guan Yun Cao The impact of water level changes on the growth and physiology of Arundo donax var. versicolor Journal of Freshwater Ecology Wetland plants Arundo donax var. versicolor water level changes simulation experiment |
| title | The impact of water level changes on the growth and physiology of Arundo donax var. versicolor |
| title_full | The impact of water level changes on the growth and physiology of Arundo donax var. versicolor |
| title_fullStr | The impact of water level changes on the growth and physiology of Arundo donax var. versicolor |
| title_full_unstemmed | The impact of water level changes on the growth and physiology of Arundo donax var. versicolor |
| title_short | The impact of water level changes on the growth and physiology of Arundo donax var. versicolor |
| title_sort | impact of water level changes on the growth and physiology of arundo donax var versicolor |
| topic | Wetland plants Arundo donax var. versicolor water level changes simulation experiment |
| url | https://www.tandfonline.com/doi/10.1080/02705060.2023.2291388 |
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