Physiological and Yield Responses of Spring Wheat Cultivars under Realistic and Acute Levels of Ozone
Tropospheric ozone (O<sub>3</sub>) is widely recognized as the cause of substantial yield and quality reduction in crops. Most of the previous studies focused on the exposure of wheat cultivars to elevated O<sub>3</sub> levels. Our main objectives were to: (i) investigate the...
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| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/11/1392 |
| _version_ | 1797511237990350848 |
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| author | Nivedita Chaudhary David J. Bonfil Eran Tas |
| author_facet | Nivedita Chaudhary David J. Bonfil Eran Tas |
| author_sort | Nivedita Chaudhary |
| collection | DOAJ |
| description | Tropospheric ozone (O<sub>3</sub>) is widely recognized as the cause of substantial yield and quality reduction in crops. Most of the previous studies focused on the exposure of wheat cultivars to elevated O<sub>3</sub> levels. Our main objectives were to: (i) investigate the consistency of wheat cultivars’ physiological responses across two different realistic O<sub>3</sub> levels; and (ii) compare these physiological responses with those under short acute O<sub>3</sub> exposure. Three commercially available hard spring wheat cultivars bred under semiarid and Eastern Mediterranean conditions were exposed to two different O<sub>3</sub> levels during two consecutive seasons (2016–2018)—36 and 71 ppbv 7 h mean O<sub>3</sub> mixing ratios in open-top chambers. The results were compared to those following short acute O<sub>3</sub> exposure (102.8 ppbv, 7 h mean for 10 days) in a greenhouse. Non-stomatal responses were significantly more pronounced than stomatal responses in all cultivars under different levels of O<sub>3</sub>. The specific cultivar was observed as the most O<sub>3</sub>-tolerant under all experiments. The fact that the same cultivar was found remarkably tolerant to the local semiarid ambient conditions according to other studies and to O<sub>3</sub> exposure based on the present study supports a link between cultivar resistance to drought conditions and O<sub>3</sub>. |
| first_indexed | 2024-03-10T05:43:30Z |
| format | Article |
| id | doaj.art-bbdd3947ab3b45e0b85b3b6565c7fa9f |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T05:43:30Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-bbdd3947ab3b45e0b85b3b6565c7fa9f2023-11-22T22:23:41ZengMDPI AGAtmosphere2073-44332021-10-011211139210.3390/atmos12111392Physiological and Yield Responses of Spring Wheat Cultivars under Realistic and Acute Levels of OzoneNivedita Chaudhary0David J. Bonfil1Eran Tas2Department of Vegetable and Field Crop Research, Agricultural Research Organization, Gilat Research Center, Negev 8531100, IsraelDepartment of Vegetable and Field Crop Research, Agricultural Research Organization, Gilat Research Center, Negev 8531100, IsraelDepartment of Soil and Water Sciences, The Institute of Environmental Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, IsraelTropospheric ozone (O<sub>3</sub>) is widely recognized as the cause of substantial yield and quality reduction in crops. Most of the previous studies focused on the exposure of wheat cultivars to elevated O<sub>3</sub> levels. Our main objectives were to: (i) investigate the consistency of wheat cultivars’ physiological responses across two different realistic O<sub>3</sub> levels; and (ii) compare these physiological responses with those under short acute O<sub>3</sub> exposure. Three commercially available hard spring wheat cultivars bred under semiarid and Eastern Mediterranean conditions were exposed to two different O<sub>3</sub> levels during two consecutive seasons (2016–2018)—36 and 71 ppbv 7 h mean O<sub>3</sub> mixing ratios in open-top chambers. The results were compared to those following short acute O<sub>3</sub> exposure (102.8 ppbv, 7 h mean for 10 days) in a greenhouse. Non-stomatal responses were significantly more pronounced than stomatal responses in all cultivars under different levels of O<sub>3</sub>. The specific cultivar was observed as the most O<sub>3</sub>-tolerant under all experiments. The fact that the same cultivar was found remarkably tolerant to the local semiarid ambient conditions according to other studies and to O<sub>3</sub> exposure based on the present study supports a link between cultivar resistance to drought conditions and O<sub>3</sub>.https://www.mdpi.com/2073-4433/12/11/1392spring wheatozone concentrationdroughtopen-top chamberphotosynthesisrubisco activity |
| spellingShingle | Nivedita Chaudhary David J. Bonfil Eran Tas Physiological and Yield Responses of Spring Wheat Cultivars under Realistic and Acute Levels of Ozone Atmosphere spring wheat ozone concentration drought open-top chamber photosynthesis rubisco activity |
| title | Physiological and Yield Responses of Spring Wheat Cultivars under Realistic and Acute Levels of Ozone |
| title_full | Physiological and Yield Responses of Spring Wheat Cultivars under Realistic and Acute Levels of Ozone |
| title_fullStr | Physiological and Yield Responses of Spring Wheat Cultivars under Realistic and Acute Levels of Ozone |
| title_full_unstemmed | Physiological and Yield Responses of Spring Wheat Cultivars under Realistic and Acute Levels of Ozone |
| title_short | Physiological and Yield Responses of Spring Wheat Cultivars under Realistic and Acute Levels of Ozone |
| title_sort | physiological and yield responses of spring wheat cultivars under realistic and acute levels of ozone |
| topic | spring wheat ozone concentration drought open-top chamber photosynthesis rubisco activity |
| url | https://www.mdpi.com/2073-4433/12/11/1392 |
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