In situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super-high-yield cultivation
In past 30 years, the wheat yield per unit area of China has increased by 79%. The super-high-yield (SH) cultivation played an important role in improving the wheat photosynthesis and yield. In order to find the ecophysiological mechanism underneath the high photosynthesis of SH cultivation, in situ...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-02-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311920635547 |
| _version_ | 1818644170378575872 |
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| author | Ming-yang MA Yang LIU Yao-wen ZHANG Wei-long QIN Zhi-min WANG Ying-hua ZHANG Cong-ming LU Qing-tao LU |
| author_facet | Ming-yang MA Yang LIU Yao-wen ZHANG Wei-long QIN Zhi-min WANG Ying-hua ZHANG Cong-ming LU Qing-tao LU |
| author_sort | Ming-yang MA |
| collection | DOAJ |
| description | In past 30 years, the wheat yield per unit area of China has increased by 79%. The super-high-yield (SH) cultivation played an important role in improving the wheat photosynthesis and yield. In order to find the ecophysiological mechanism underneath the high photosynthesis of SH cultivation, in situ diurnal changes in the photosynthetic gas exchange and chlorophyll (Chl) a fluorescence of field-grown wheat plants during the grain-filling stage and environmental factors were investigated. During the late grain-filling stage at 24 days after anthesis (DAA), the diurnal changes in net CO2 assimilation rate were higher under SH treatment than under high-yield (H) treatment. From 8 to 24 DAA, the actual quantum yield of photosystem II (PSII) electron transport in the light-adapted state (ΦPSII) in the flag leaves at noon under SH treatment were significantly higher than those under H treatment. The leaf temperature, soil temperature and soil moisture were better suited for higher rates of leaf photosynthesis under SH treatment than those under H treatment at noon. Such diurnal changes in environmental factors in wheat fields could be one of the mechanisms for the higher biomass and yield under SH cultivation than those under H cultivation. ΦPSII and CO2 exchange rate in wheat flag leaves under SH and H treatments had a linear correlation which could provide new insight to evaluate the wheat photosynthesis performance under different conditions. |
| first_indexed | 2024-12-17T00:10:35Z |
| format | Article |
| id | doaj.art-057e01955f7b434aa5329f743061fb6f |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-17T00:10:35Z |
| publishDate | 2021-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-057e01955f7b434aa5329f743061fb6f2022-12-21T22:10:50ZengElsevierJournal of Integrative Agriculture2095-31192021-02-01202527539In situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super-high-yield cultivationMing-yang MA0Yang LIU1Yao-wen ZHANG2Wei-long QIN3Zhi-min WANG4Ying-hua ZHANG5Cong-ming LU6Qing-tao LU7Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P.R.China; State Key Laboratory of Crop Biology, Ministry of Science and Technology/College of Life Sciences, Shandong Agricultural University, Tai’an 271018, P.R.ChinaCollege of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, P.R.ChinaHybrid Rapeseed Research Center of Shaanxi Province/Shaanxi Rapeseed Branch of National Oil Crops Genetic Improvement Center, Yangling 712100, P.R.ChinaCollege of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, P.R.ChinaCollege of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, P.R.ChinaCollege of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, P.R.ChinaState Key Laboratory of Crop Biology, Ministry of Science and Technology/College of Life Sciences, Shandong Agricultural University, Tai’an 271018, P.R.ChinaKey Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, P.R.China; Correspondence LU Qing-taoIn past 30 years, the wheat yield per unit area of China has increased by 79%. The super-high-yield (SH) cultivation played an important role in improving the wheat photosynthesis and yield. In order to find the ecophysiological mechanism underneath the high photosynthesis of SH cultivation, in situ diurnal changes in the photosynthetic gas exchange and chlorophyll (Chl) a fluorescence of field-grown wheat plants during the grain-filling stage and environmental factors were investigated. During the late grain-filling stage at 24 days after anthesis (DAA), the diurnal changes in net CO2 assimilation rate were higher under SH treatment than under high-yield (H) treatment. From 8 to 24 DAA, the actual quantum yield of photosystem II (PSII) electron transport in the light-adapted state (ΦPSII) in the flag leaves at noon under SH treatment were significantly higher than those under H treatment. The leaf temperature, soil temperature and soil moisture were better suited for higher rates of leaf photosynthesis under SH treatment than those under H treatment at noon. Such diurnal changes in environmental factors in wheat fields could be one of the mechanisms for the higher biomass and yield under SH cultivation than those under H cultivation. ΦPSII and CO2 exchange rate in wheat flag leaves under SH and H treatments had a linear correlation which could provide new insight to evaluate the wheat photosynthesis performance under different conditions.http://www.sciencedirect.com/science/article/pii/S2095311920635547photosynthesisChl a fluorescencesuper-high-yield cultivationwinter wheatecophysiological mechanism |
| spellingShingle | Ming-yang MA Yang LIU Yao-wen ZHANG Wei-long QIN Zhi-min WANG Ying-hua ZHANG Cong-ming LU Qing-tao LU In situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super-high-yield cultivation Journal of Integrative Agriculture photosynthesis Chl a fluorescence super-high-yield cultivation winter wheat ecophysiological mechanism |
| title | In situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super-high-yield cultivation |
| title_full | In situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super-high-yield cultivation |
| title_fullStr | In situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super-high-yield cultivation |
| title_full_unstemmed | In situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super-high-yield cultivation |
| title_short | In situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super-high-yield cultivation |
| title_sort | in situ measurements of winter wheat diurnal changes in photosynthesis and environmental factors reveal new insight into photosynthesis improvement by super high yield cultivation |
| topic | photosynthesis Chl a fluorescence super-high-yield cultivation winter wheat ecophysiological mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2095311920635547 |
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