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dc.contributor.authorGalindo Egea, A.es_ES
dc.contributor.authorGirón Moreno, Ignacio F.es_ES
dc.contributor.authorCorell González, M.es_ES
dc.contributor.authorMoriana, Alfonsoes_ES
dc.contributor.authorTorrecillas Melendreras, Arturoes_ES
dc.contributor.authorHernández, Franciscaes_ES
dc.identifier.citationScientia Horticulturae (226): 68-74 (2017)es_ES
dc.descriptionpáginas.-- figuras.-- tablas.-- 47 referencias.- Galindo, A. et al... Scientia Horticulturae, 226: 68-74 (2017) DOI: 10.1016/j.scienta.2017.08.029es_ES
dc.description.abstractPomegranate (Punica granatum L.) is a drought tolerant crop, which thrives in the face of scarce water resources, this fact underlines the importance of determining the optimum harvest time to improve the quality of pomegranate fruits. This research was focused on the crop responses to drought stress during the phenological period of fruit ripening. Special attention was paid to the effects on plant productivity of water restrictions during fruit ripening and whether such restrictions have secondary effects on fruit characteristics and composition. Control plants were irrigated above crop water requirements while deficit irrigation treatments were irrigated as control plants except for 6 days (fruit late ripening), 15 days (second half fruit ripening), 25 days (fruit ripening), and 36 days (end fruit growth and late ripening) before harvest, when irrigation was withheld. The results indicated that the water stress integral, calculated from leaf conductance, leaf water potential, stem water potential and fruit water potential data, differed in their assessment of the cumulative water deficit reached by the plants. Also, pomegranate fruit ripening was confirmed as a critical period because irrigation is clearly essential during most of this phenological period to achieve maximum yield. Moreover, a very short period of irrigation restriction (around 6 days) at the end of ripening period comes early harvest time, saves irrigation water, enhances the bioactive compounds content (anthocyanins, phenolic compounds, punicalagin and ellagic acid) and increases the price of the fruit without affecting marketable yield and fruit size. This suggests that the sensitivity to water stress during such a critical phenological period is not constant and/or that for productivity to be adversely affected it is necessary to exceed a threshold level of water stresses_ES
dc.description.sponsorshipThis research was supported by Ministerio de Economía y Competitividad (MINECO) (CICYT/FEDERAGL2013-45922-C2-1-R and AGL2013-45922-C2-2-R) grants to the authors. Also, this work is a result of the PR internship (19925/IV/15) funded by the Fundación Séneca − Agencia de Ciencia y Tecnología de la Región de Murcia (Seneca Foundation − Agency for Science and Technology in the Region of Murcia) under the Jiménez de la Espada Program for Mobility, Cooperation and Internationalization. AG and ZNC were funded by a postdoctoral financial support received from the Ramón Areces Foundation program and AECID grant from the Spanish Government, respectively.es_ES
dc.subjectAntioxidant activityes_ES
dc.subjectBioactive compoundses_ES
dc.subjectPlant water relationses_ES
dc.subjectPunica granatumes_ES
dc.subjectRegulated deficit irrigationes_ES
dc.subjectWater stress integrales_ES
dc.subjectPunica granatumes_ES
dc.titleWater stress at the end of the pomegranate fruit ripening stage produces earlier harvest and improves fruit qualityes_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderFundación Ramón Areceses_ES
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