Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field
Ledflex is a fluorometer adapted to measure chlorophyll fluorescence at the canopy level. It has been described in detail by Moya et al. (2019), Photosynthesis Research. https://doi.org/10.1007/s11120-019-00642-9. We used this instrument to determine the effect of water stress on the fluorescence of...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Springer
2023
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| Acceso en línea: | https://hdl.handle.net/10568/126029 |
| _version_ | 1855519638037725184 |
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| author | Moya, I. Loayza, H. López, M.L. Sánchez, J.M. Goulas, Y. Ounis, A. Quiróz, R. Calera, A. |
| author_browse | Calera, A. Goulas, Y. Loayza, H. López, M.L. Moya, I. Ounis, A. Quiróz, R. Sánchez, J.M. |
| author_facet | Moya, I. Loayza, H. López, M.L. Sánchez, J.M. Goulas, Y. Ounis, A. Quiróz, R. Calera, A. |
| author_sort | Moya, I. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Ledflex is a fluorometer adapted to measure chlorophyll fluorescence at the canopy level. It has been described in detail by Moya et al. (2019), Photosynthesis Research. https://doi.org/10.1007/s11120-019-00642-9. We used this instrument to determine the effect of water stress on the fluorescence of a fescue field under extreme temperature and light conditions through a 12 days campaign during summer in a Mediterranean area. The fescue field formed part of a lysimeter station in "las Tiesas," near Albacete-Spain. In addition to the fluorescence data, the surface temperature was measured using infrared radiometers. Furthermore, "Airflex," a passive fluorometer measuring the filling-in of the atmospheric oxygen absorption band at 760 nm, was installed in an ultralight plane and flown during the most critical days of the campaign. We observed with the Ledflex fluorometer a considerable decrease of about 53% of the stationary chlorophyll fluorescence level at noon under water stress, which was well correlated with the surface temperature difference between the stressed and control plots. Airflex data also showed a decrease in far-red solar-induced fluorescence upon water stress in agreement with surface temperature data and active fluorescence measurements after correction for PS I contribution. Notwithstanding, the results from airborne remote sensing are not as precise as in situ active data. |
| format | Journal Article |
| id | CGSpace126029 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1260292025-04-17T08:26:12Z Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field Moya, I. Loayza, H. López, M.L. Sánchez, J.M. Goulas, Y. Ounis, A. Quiróz, R. Calera, A. chlorophylls drought stress festuca cell biology biochemistry Ledflex is a fluorometer adapted to measure chlorophyll fluorescence at the canopy level. It has been described in detail by Moya et al. (2019), Photosynthesis Research. https://doi.org/10.1007/s11120-019-00642-9. We used this instrument to determine the effect of water stress on the fluorescence of a fescue field under extreme temperature and light conditions through a 12 days campaign during summer in a Mediterranean area. The fescue field formed part of a lysimeter station in "las Tiesas," near Albacete-Spain. In addition to the fluorescence data, the surface temperature was measured using infrared radiometers. Furthermore, "Airflex," a passive fluorometer measuring the filling-in of the atmospheric oxygen absorption band at 760 nm, was installed in an ultralight plane and flown during the most critical days of the campaign. We observed with the Ledflex fluorometer a considerable decrease of about 53% of the stationary chlorophyll fluorescence level at noon under water stress, which was well correlated with the surface temperature difference between the stressed and control plots. Airflex data also showed a decrease in far-red solar-induced fluorescence upon water stress in agreement with surface temperature data and active fluorescence measurements after correction for PS I contribution. Notwithstanding, the results from airborne remote sensing are not as precise as in situ active data. 2023-02 2022-12-15T18:39:43Z 2022-12-15T18:39:43Z Journal Article https://hdl.handle.net/10568/126029 en Open Access Springer Moya, I.; Loayza, H.; López, M.L.; Sánchez, J.M.; Goulas, Y.; Ounis, A.; Quiroz, R.; Calera, A. 2022. Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field. Photosynthesis Research. ISSN 1573-5079. |
| spellingShingle | chlorophylls drought stress festuca cell biology biochemistry Moya, I. Loayza, H. López, M.L. Sánchez, J.M. Goulas, Y. Ounis, A. Quiróz, R. Calera, A. Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field |
| title | Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field |
| title_full | Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field |
| title_fullStr | Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field |
| title_full_unstemmed | Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field |
| title_short | Active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field |
| title_sort | active in situ and passive airborne fluorescence measurements for water stress detection on a fescue field |
| topic | chlorophylls drought stress festuca cell biology biochemistry |
| url | https://hdl.handle.net/10568/126029 |
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