Daily photosynthesis, water relations, and ion concentrations of euonymus irrigated with treated wastewater

Página do item simplificado
dc.contributor.authorGómez-Bellot, María José
dc.contributor.authorNortes, Pedro Antonio
dc.contributor.authorOrtuño, María Fernanda
dc.contributor.authorSánchez-Blanco, María Jesús
dc.contributor.authorGoncxalves, Karoline Santos [UNESP]
dc.contributor.authorBañón, Sebastián
dc.contributor.institutionCentro de Edafología y Biología Aplicada del Segura (CSIC)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidad Politécnica de Cartagena (UPCT)
dc.date.accessioned2022-04-28T19:00:30Z
dc.date.available2022-04-28T19:00:30Z
dc.date.issued2014-10-01
dc.description.abstractEuonymus japonica Thunb. (euonymus) plants were submitted for 9 months to two irrigation treatments using water from different sources: a control (C) water with electrical conductivity (EC) less than 1.2 dS•m−1 and reclaimed wastewater (RW) with EC ≈4 dS•m−1. At the end of the experiment, no differences in the total dry weight were observed between treatments, whereas the leaf dry mass increased (to the detriment of the root part in RW plants). Throughout the day, the stem water potential (Ψstem) of the RW plants was lower than in C, whereas stomatal conductance (gS) was slightly reduced in RW from 0800 HR to 1200 HR, but no significant variation in photosynthesis (Pn) or energy conversion efficiency (F′v/F′m) in photosystem II was detected through the effect of salinity. Gas exchange and fluorescence showed a tendency to increase after midday in plants treated with RW. The photosynthetic behavior and fluorescence of RW plants may have been related to the nitrogen and chlorophyll content of the leaves, confirming the resistance of the photosynthetic mechanism to salinity in this species in these conditions. The toxic effects produced by high concentrations of boron (B), sodium (Na+) and chloride (Cl–) were offset by the effect of other ions like magnesium (Mg2+), potassium (K+ ), and phosphorus (P) in plants irrigated with RW, thus improving their physiological status without decreasing their ornamental value.en
dc.description.affiliationDepartment of Irrigation Centro de Edafología y Biología Aplicada del Segura (CSIC), P.O. Box 164
dc.description.affiliationUniversidade Estadual Paulista, Campus de Botucatu
dc.description.affiliationDepartment of Agricultural Production Universidad Politécnica de Cartagena (UPCT)
dc.description.affiliationUnespUniversidade Estadual Paulista, Campus de Botucatu
dc.format.extent1292-1297
dc.identifierhttp://dx.doi.org/10.21273/hortsci.49.10.1292
dc.identifier.citationHortScience, v. 49, n. 10, p. 1292-1297, 2014.
dc.identifier.doi10.21273/hortsci.49.10.1292
dc.identifier.issn2327-9834
dc.identifier.issn0018-5345
dc.identifier.scopus2-s2.0-84910683518
dc.identifier.urihttp://hdl.handle.net/11449/220255
dc.language.isoeng
dc.relation.ispartofHortScience
dc.sourceScopus
dc.subjectFluorescence
dc.subjectGas exchange
dc.subjectOrnamental plants
dc.subjectPlant nutrition
dc.subjectSalinity
dc.titleDaily photosynthesis, water relations, and ion concentrations of euonymus irrigated with treated wastewateren
dc.typeArtigo

Arquivos

Coleções

Artigos