Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation
Potatoes—a global food security and staple crop—is threatened by dry spells in drought-prone areas. The use of physiological thresholds to save water while maintaining a reasonable tuber yield has been proposed, but their effects on physiological performances and usefulness under different irrigatio...
| Autores principales: | , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2023
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/20.500.12955/2242 https://doi.org/10.3390/agronomy10060827 |
| _version_ | 1855490372180901888 |
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| author | Silva Díaz, Cecilia Ramírez, David A. Rodríguez Delfín, Alfredo De Mendiburu, Felipe Rinza, Javier Ninanya, Johan Loayza, Hildo Quiroz, Roberto |
| author_browse | De Mendiburu, Felipe Loayza, Hildo Ninanya, Johan Quiroz, Roberto Ramírez, David A. Rinza, Javier Rodríguez Delfín, Alfredo Silva Díaz, Cecilia |
| author_facet | Silva Díaz, Cecilia Ramírez, David A. Rodríguez Delfín, Alfredo De Mendiburu, Felipe Rinza, Javier Ninanya, Johan Loayza, Hildo Quiroz, Roberto |
| author_sort | Silva Díaz, Cecilia |
| collection | Repositorio INIA |
| description | Potatoes—a global food security and staple crop—is threatened by dry spells in drought-prone areas. The use of physiological thresholds to save water while maintaining a reasonable tuber yield has been proposed, but their effects on physiological performances and usefulness under different irrigation methods are yet to be evaluated. In this study, photosynthetic traits were monitored to assess the effect of water restriction and rewatering under drip (DI) and furrow (FI) irrigations. The treatments consisted of two maximum light-saturated stomatal conductance (g𝑠_𝑚𝑎𝑥) irrigation thresholds (T2: 0.15 and T3: 0.05 mol H2O m−2 s−1) compared with a fully irrigated control (g𝑠_𝑚𝑎𝑥 > 0.3 mol H2O m−2 s−1). DI used less water than FI but promoted early senescence and low percentage of maximum assimilation rate (PMA) at late developmental stages. FI caused no yield penalization in T2 and higher recovery of carbon isotope discrimination and PMA than DI. It is suggested that moderate water quantities of early and frequently water pulses in the irrigation, promote short-term water stress memory improvement, senescence delay and more capability of recovery at late stages. |
| format | Artículo |
| id | INIA2242 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INIA22422023-12-15T22:34:14Z Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation Silva Díaz, Cecilia Ramírez, David A. Rodríguez Delfín, Alfredo De Mendiburu, Felipe Rinza, Javier Ninanya, Johan Loayza, Hildo Quiroz, Roberto Drip irrigation Furrow irrigation Physiological recovery Potato yield Rewatering Water stress https://purl.org/pe-repo/ocde/ford#4.01.06 Trickle irrigation Riego por goteo Furrow irrigation Riego por surcos Potatoes Papa Drought stress Estrés de sequia Potatoes—a global food security and staple crop—is threatened by dry spells in drought-prone areas. The use of physiological thresholds to save water while maintaining a reasonable tuber yield has been proposed, but their effects on physiological performances and usefulness under different irrigation methods are yet to be evaluated. In this study, photosynthetic traits were monitored to assess the effect of water restriction and rewatering under drip (DI) and furrow (FI) irrigations. The treatments consisted of two maximum light-saturated stomatal conductance (g𝑠_𝑚𝑎𝑥) irrigation thresholds (T2: 0.15 and T3: 0.05 mol H2O m−2 s−1) compared with a fully irrigated control (g𝑠_𝑚𝑎𝑥 > 0.3 mol H2O m−2 s−1). DI used less water than FI but promoted early senescence and low percentage of maximum assimilation rate (PMA) at late developmental stages. FI caused no yield penalization in T2 and higher recovery of carbon isotope discrimination and PMA than DI. It is suggested that moderate water quantities of early and frequently water pulses in the irrigation, promote short-term water stress memory improvement, senescence delay and more capability of recovery at late stages. This research received the financial support from “Programa Nacional de Innovación Agraria” (PNIA), with the Project No. 016-2015-INIA-PNIA/UPMSI/IE “Uso efectivo del agua en el cultivo de papa en zonas áridas: Mejorando el manejo del riego mediante el monitoreo del estatus hídrico para enfrentar al Cambio Climático”, and the complementary funds from “Root, Tubers and Bananas” (RTB) CGIAR Research Program. 2023-08-11T14:36:33Z 2023-08-11T14:36:33Z 2020-06-11 info:eu-repo/semantics/article Silva-Díaz, C.; Ramírez, D. A.; Rodríguez-Delfín, A.; de Mendiburu, F.; Rinza, J.; Ninanya, J.; ... & Quiroz, R. (2020). Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation. Agronomy, 10(6), 827. doi: 10.3390/agronomy10060827 2073-4395 https://hdl.handle.net/20.500.12955/2242 https://doi.org/10.3390/agronomy10060827 eng urn:issn:2073-4395 Agronomy info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ application/pdf application/pdf MDPI CH Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | Drip irrigation Furrow irrigation Physiological recovery Potato yield Rewatering Water stress https://purl.org/pe-repo/ocde/ford#4.01.06 Trickle irrigation Riego por goteo Furrow irrigation Riego por surcos Potatoes Papa Drought stress Estrés de sequia Silva Díaz, Cecilia Ramírez, David A. Rodríguez Delfín, Alfredo De Mendiburu, Felipe Rinza, Javier Ninanya, Johan Loayza, Hildo Quiroz, Roberto Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation |
| title | Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation |
| title_full | Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation |
| title_fullStr | Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation |
| title_full_unstemmed | Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation |
| title_short | Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: a preliminary field evaluation |
| title_sort | unraveling ecophysiological mechanisms in potatoes under different irrigation methods a preliminary field evaluation |
| topic | Drip irrigation Furrow irrigation Physiological recovery Potato yield Rewatering Water stress https://purl.org/pe-repo/ocde/ford#4.01.06 Trickle irrigation Riego por goteo Furrow irrigation Riego por surcos Potatoes Papa Drought stress Estrés de sequia |
| url | https://hdl.handle.net/20.500.12955/2242 https://doi.org/10.3390/agronomy10060827 |
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