Unraveling Ecophysiological Mechanisms in Potatoes under Different Irrigation Methods: A Preliminary Field Evaluation

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dc.creatorSilva-Díaz, Cecilia
dc.creatorRamírez, David A.
dc.creatorRodríguez-Delfín, Alfredo
dc.creatorMendiburu, Felipe de
dc.creatorRinza, Javier
dc.creatorNinanya, Johan
dc.creatorLoayza, Hildo
dc.creatorQuiroz, Roberto
dc.date2020-07-01T02:18:43Z
dc.date2020-07-01T02:18:43Z
dc.date2020
dc.date.accessioned2026-06-09T02:17:27Z
dc.descriptionPotatoes—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 (g s_max ) irrigation thresholds (T2: 0.15 and T3: 0.05 mol H2O m −2 s −1 ) compared with a fully irrigated control (g s_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.
dc.descriptionMDPI : Basel (Switzerland)
dc.formatapplication/pdf
dc.identifierSilva-Diaz, C.; Ramírez, D.; Rodríguez-Delfín, A.; Mendiburu, F. de; Rinza, J.; Ninanya, J.; Loayza, H.; Quiroz, R. 2020. Unraveling ecophysiological mechanisms in potatoes under different irrigation methods: A preliminary field evaluation. Agronomy. ISSN 2073-4395. 10(6), 827
dc.identifier2073-4395
dc.identifierhttps://repositorio.catie.ac.cr/handle/11554/9473
dc.identifierhttps://doi.org/10.3390/agronomy10060827
dc.identifier.urihttp://hdl.handle.net/123456789/4294
dc.languageen
dc.relationAgronomy
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectSOLANUM TUBEROSUM
dc.subjectTUBERCULO
dc.subjectPAPA
dc.subjectESTACIÓN SECA
dc.subjectSEQUIA
dc.subjectRIEGO POR GOTEO
dc.subjectRENDIMIENTO DE CULTIVOS
dc.subjectESCASEZ DE AGUA
dc.subjectESTRES HIDRICO
dc.subjectSENESCENCIA
dc.titleUnraveling Ecophysiological Mechanisms in Potatoes under Different Irrigation Methods: A Preliminary Field Evaluation
dc.typeArtículo

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