Terahertz time domain spectroscopy allows contactless monitoring of grapevine water status

Santesteban García, Gonzaga; Palacios Horcajada, Inés; Miranda Jiménez, Carlos; Iriarte Galarregui, Juan Carlos; Royo Díaz, José Bernardo; Gonzalo García, Ramón

doi:10.3389/fpls.2015.00404

dc.creator	Santesteban García, Gonzaga	es_ES
dc.creator	Palacios Horcajada, Inés	es_ES
dc.creator	Miranda Jiménez, Carlos	es_ES
dc.creator	Iriarte Galarregui, Juan Carlos	es_ES
dc.creator	Royo Díaz, José Bernardo	es_ES
dc.creator	Gonzalo García, Ramón	es_ES
dc.date.accessioned	2018-09-04T06:43:52Z
dc.date.available	2018-09-04T06:43:52Z
dc.date.issued	2015
dc.identifier.issn	1664-462X (Electronic)
dc.identifier.uri	https://hdl.handle.net/2454/30444
dc.description.abstract	Agriculture is the sector with the greatest water consumption, since food production is frequently based on crop irrigation. Proper irrigation management requires reliable information on plant water status, but all the plant-based methods to determine it suffer from several inconveniences, mainly caused by the necessity of destructive sampling or of alteration of the plant organ due to contact installation. The aim of this work is to test if terahertz (THz) time domain reflectance measurements made on the grapevine trunk allows contactless monitoring of plant status. The experiments were performed on a potted 14-years-old plant, using a general purpose THz emitter receiver head. Trunk THz time-domain reflection signal proved to be very sensitive to changes in plant water availability, as its pattern follows the trend of soil water content and trunk growth variations. Therefore, it could be used to contactless monitor plant water status. Apart from that, THz reflection signal was observed to respond to light conditions which, according to a specifically designed girdling experiment, was caused by changes in the phloem. This latter results opens a promising field of research for contactless monitoring of phloem activity.	en
dc.description.sponsorship	This research was supported by the Industry Department of the Government of Navarre (VITICS, Ref: IIM14244.RI1, project co-financed with EU funds from the ERDF) and by the Spanish Ministry of Economy and Competitiveness (BACAVID, Ref: AGL2011-30408-C04-03 and DIDAcTIc, Ref: TEC2013–47753-C3-1-R).	en
dc.format.extent	9 p.
dc.format.mimetype	application/pdf	en
dc.language.iso	eng	en
dc.publisher	Frontiers Media	en
dc.relation.ispartof	Frontiers in Plant Science, 6: 404	en
dc.rights	© 2015 Santesteban, Palacios, Miranda, Iriarte, Royo and Gonzalo. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.	en
dc.rights.uri	https://creativecommons.org/licenses/by/3.0/
dc.subject	Dendrometer	en
dc.subject	Phloem	en
dc.subject	THz spectrometry	en
dc.subject	Vitis vinifera L.	en
dc.subject	Water relations	en
dc.subject	Xylem	en
dc.title	Terahertz time domain spectroscopy allows contactless monitoring of grapevine water status	en
dc.type	info:eu-repo/semantics/article	en
dc.type	Artículo / Artikulua	es
dc.contributor.department	Producción Agraria	es_ES
dc.contributor.department	Nekazaritza Ekoizpena	eu
dc.contributor.department	Ingeniería Eléctrica y Electrónica	es_ES
dc.contributor.department	Ingeniaritza Elektrikoa eta Elektronikoa	eu
dc.rights.accessRights	info:eu-repo/semantics/openAccess	en
dc.rights.accessRights	Acceso abierto / Sarbide irekia	es
dc.identifier.doi	10.3389/fpls.2015.00404
dc.relation.projectID	info:eu-repo/grantAgreement/MICINN//AGL2011-30408-C04-03/ES/	en
dc.relation.projectID	info:eu-repo/grantAgreement/MINECO//TEC2013-47753-C3-1-R/ES/	en
dc.relation.publisherversion	https://doi.org/10.3389/fpls.2015.00404
dc.type.version	info:eu-repo/semantics/publishedVersion	en
dc.type.version	Versión publicada / Argitaratu den bertsioa	es
dc.contributor.funder	Gobierno de Navarra / Nafarroako Gobernua, IIM14244.RI1	es

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© 2015 Santesteban, Palacios, Miranda, Iriarte, Royo and Gonzalo. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

La licencia del ítem se describe como © 2015 Santesteban, Palacios, Miranda, Iriarte, Royo and Gonzalo. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.