Adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture, radiation and water use efficiencies, and grain yield
Chia is generally grown under rainfed conditions and is often under water deficit conditions during the critical period of flowering and grain filling when yield is determined. The objective of this study was to determine how intercepted photosynthetically active radiation (iPAR), radiation use effi...
| Main Authors: | , , , |
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| Format: | Artículo |
| Language: | Inglés |
| Published: |
Springer
2024
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| Online Access: | http://hdl.handle.net/20.500.12123/18440 https://link.springer.com/article/10.1007/s00271-023-00878-3 https://doi.org/10.1007/s00271-023-00878-3 |
| _version_ | 1855486173197107200 |
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| author | Diez, Josefina Orellana, Fernando Searles, Peter Stoughton Acreche, Martin Moises |
| author_browse | Acreche, Martin Moises Diez, Josefina Orellana, Fernando Searles, Peter Stoughton |
| author_facet | Diez, Josefina Orellana, Fernando Searles, Peter Stoughton Acreche, Martin Moises |
| author_sort | Diez, Josefina |
| collection | INTA Digital |
| description | Chia is generally grown under rainfed conditions and is often under water deficit conditions during the critical period of flowering and grain filling when yield is determined. The objective of this study was to determine how intercepted photosynthetically active radiation (iPAR), radiation use efficiency (RUE), water use efficiency (WUE), and grain yield were affected by different soil water availabilities during the critical period for yield in chia. Four levels of total available water (TAW) during the critical period were obtained using supplemental drip irrigation including: T90 (90% TAW), T65 (65% TAW), T45 (45% TAW), and T30 (30% TAW). No reductions in iPAR and RUE (dry matter or yield per unit of intercepted radiation) were found between T65 and T90, which led to similar dry matter and grain yield. Water availabilities equal to or lower than 45% of TAW decreased iPAR, RUE, dry matter, and grain yield. The decrease in RUE under low TAW was associated with reductions in WUE (dry matter per mm of evapotranspiration) and in crop conductance (gc; evapotranspiration per unit of iPAR). These reductions in WUE and gc occurred, respectively, due to the greater contribution of soil evaporation to crop evapotranspiration and less transpiration per unit of intercepted radiation when TAW was 45% or lower. The use of supplemental irrigation to ensure 65% of TAW in the soil during the critical period for yield would reduce the importance of soil evaporation and increase crop transpiration by increasing crop ground cover and would lead to improved grain yields in chia. |
| format | Artículo |
| id | INTA18440 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA184402024-07-10T12:37:07Z Adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture, radiation and water use efficiencies, and grain yield Diez, Josefina Orellana, Fernando Searles, Peter Stoughton Acreche, Martin Moises Riego Irrigation Riego Complementario Supplemental Irrigation Salvia hispanica Rendimiento Yields Uso del Agua Water Use Chia Chia is generally grown under rainfed conditions and is often under water deficit conditions during the critical period of flowering and grain filling when yield is determined. The objective of this study was to determine how intercepted photosynthetically active radiation (iPAR), radiation use efficiency (RUE), water use efficiency (WUE), and grain yield were affected by different soil water availabilities during the critical period for yield in chia. Four levels of total available water (TAW) during the critical period were obtained using supplemental drip irrigation including: T90 (90% TAW), T65 (65% TAW), T45 (45% TAW), and T30 (30% TAW). No reductions in iPAR and RUE (dry matter or yield per unit of intercepted radiation) were found between T65 and T90, which led to similar dry matter and grain yield. Water availabilities equal to or lower than 45% of TAW decreased iPAR, RUE, dry matter, and grain yield. The decrease in RUE under low TAW was associated with reductions in WUE (dry matter per mm of evapotranspiration) and in crop conductance (gc; evapotranspiration per unit of iPAR). These reductions in WUE and gc occurred, respectively, due to the greater contribution of soil evaporation to crop evapotranspiration and less transpiration per unit of intercepted radiation when TAW was 45% or lower. The use of supplemental irrigation to ensure 65% of TAW in the soil during the critical period for yield would reduce the importance of soil evaporation and increase crop transpiration by increasing crop ground cover and would lead to improved grain yields in chia. EEA Salta Fil: Diez, Josefina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina. Fil: Diez, Josefina. Universidad Nacional de Salta; Argentina Fil: Orellana, Fernando. Universidad Nacional de Salta; Argentina Fil: Searles, Peter Stoughton. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina Fil: Searles, Peter Stoughton. Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina Fil: Searles, Peter Stoughton. Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de la Rioja; Argentina Fil: Searles, Peter Stoughton. Secretaria de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina Fil: Searles, Peter Stoughton. Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina Fil: Acreche, Martin Moises. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Salta; Argentina Fil: Acreche, Martin Moises. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2024-07-10T12:28:43Z 2024-07-10T12:28:43Z 2024-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/18440 https://link.springer.com/article/10.1007/s00271-023-00878-3 0342-7188 1432-1319 https://doi.org/10.1007/s00271-023-00878-3 eng info:eu-repograntAgreement/INTA/PNIND-1108064/AR./Bases ecofisiológicas del mejoramiento y sistemas de cultivo. info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Springer Irrigation Science 42 (3) : 541-550. (May 2024) |
| spellingShingle | Riego Irrigation Riego Complementario Supplemental Irrigation Salvia hispanica Rendimiento Yields Uso del Agua Water Use Chia Diez, Josefina Orellana, Fernando Searles, Peter Stoughton Acreche, Martin Moises Adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture, radiation and water use efficiencies, and grain yield |
| title | Adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture, radiation and water use efficiencies, and grain yield |
| title_full | Adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture, radiation and water use efficiencies, and grain yield |
| title_fullStr | Adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture, radiation and water use efficiencies, and grain yield |
| title_full_unstemmed | Adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture, radiation and water use efficiencies, and grain yield |
| title_short | Adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture, radiation and water use efficiencies, and grain yield |
| title_sort | adequate supplemental irrigation amount during the critical period for yield in chia prevents reductions in radiation capture radiation and water use efficiencies and grain yield |
| topic | Riego Irrigation Riego Complementario Supplemental Irrigation Salvia hispanica Rendimiento Yields Uso del Agua Water Use Chia |
| url | http://hdl.handle.net/20.500.12123/18440 https://link.springer.com/article/10.1007/s00271-023-00878-3 https://doi.org/10.1007/s00271-023-00878-3 |
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