TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS

Detalhes bibliográficos
Autor(a) principal: Pavão, Glaucia Cristina
Data de Publicação: 2017
Outros Autores: Simione, Júlia Rodrigues, Souza, Claudinei Fonseca
Tipo de documento: Artigo
Idioma: por
Título da fonte: Engenharia na Agricultura
Texto Completo: https://periodicos.ufv.br/reveng/article/view/702
Resumo: The efficient water application in agriculture involves modern equipment and appropriate management of this resource. The water amount absorbed for crop can be determined by measuring xylem sap flow and, Time Domain Reflectometry (TDR) technique has potential to be accurate and virtually free of interference. Thus, the objective of this study was TDR probes construction and evaluation of different sizes that could be read in three different software for purpose of measuring sap flow in woody plants. The experiment was conducted at the Agricultural Sciences Center at UFSCar. Probes of six sizes (200, 150, 100, 70, 50 and 20 mm) were constructed and evaluated in distilled water at 20º C for three software applications of the technique, PCTDR at Campebell Scientific, WinTDR at Utah State University e o TDR-Lab at CSIC. The software demonstrates difficulties in automatic reading, WinTDR and PCTDR being more limited as the manual reading and PCTDR failed to perform readings in probes of 1.6 mm rod diameter. In conclusion, the TDRLab software is promising to analyze smaller sizes probes, but further studies are needed of the probes physical constitution, especially in epoxy for greater precision in the readings.
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spelling TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTSNOTA TÉCNICA: CONSTRUÇÃO DE SONDAS TDR E AVALIAÇÃO EM DIFERENTES SOFTWARES DE APLICAÇÃO TÉCNICAdimensionamentoprogramas de análise TDRReflectometria no Domínio do TempoThe efficient water application in agriculture involves modern equipment and appropriate management of this resource. The water amount absorbed for crop can be determined by measuring xylem sap flow and, Time Domain Reflectometry (TDR) technique has potential to be accurate and virtually free of interference. Thus, the objective of this study was TDR probes construction and evaluation of different sizes that could be read in three different software for purpose of measuring sap flow in woody plants. The experiment was conducted at the Agricultural Sciences Center at UFSCar. Probes of six sizes (200, 150, 100, 70, 50 and 20 mm) were constructed and evaluated in distilled water at 20º C for three software applications of the technique, PCTDR at Campebell Scientific, WinTDR at Utah State University e o TDR-Lab at CSIC. The software demonstrates difficulties in automatic reading, WinTDR and PCTDR being more limited as the manual reading and PCTDR failed to perform readings in probes of 1.6 mm rod diameter. In conclusion, the TDRLab software is promising to analyze smaller sizes probes, but further studies are needed of the probes physical constitution, especially in epoxy for greater precision in the readings.A aplicação eficiente de água na agricultura envolve equipamentos modernos e manejo adequado deste recurso natural. A quantidade de água absorvida pela cultura pode ser determinada pelo ?uxo de seiva xilemática e a técnica da Re?ectometria no Domínio do Tempo (TDR) tem potencial para efetuar essas medições por ser precisa e praticamente livre de interferências. O objetivo deste trabalho foi construir e avaliar sondas TDR de diferentes tamanhos que pudessem ser lidas por três diferentes softwares com a finalidade de mensuração do ?uxo de seiva em plantas lenhosas.Foram avaliados seis tamanhos de sondas (200, 150, 100, 70, 50 e 20 mm) sendo construídas e avaliadas características físicas em água deionizada por três programas de aplicação da técnica, PCTDR da Campebell Scientifc, WinTDR da Utah State University e o TDR-Lab da CSIC. Os softwares demonstraram dificuldades na leitura automática, sendo WinTDR e PCTDR mais limitados quanto à leitura manual.O PCTDR não conseguiu realizar leituras em sondas de 1,6 mm de diâmetro de haste. Já o software TDRLab se mostrou promissor na análise de sondas de tamanhos menores, porém ainda são necessários estudos da constituição física das sondas para maior precisão nas leituras.Universidade Federal de Viçosa - UFV2017-08-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/reveng/article/view/70210.13083/reveng.v25i3.781Engineering in Agriculture; Vol. 25 No. 3 (2017); 283-289Revista Engenharia na Agricultura - REVENG; v. 25 n. 3 (2017); 283-2892175-68131414-398410.13083/reveng.v25i3reponame:Engenharia na Agriculturainstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/reveng/article/view/702/465Pavão, Glaucia CristinaSimione, Júlia RodriguesSouza, Claudinei Fonsecainfo:eu-repo/semantics/openAccess2023-01-19T13:32:47Zoai:ojs.periodicos.ufv.br:article/702Revistahttps://periodicos.ufv.br/revengPUBhttps://periodicos.ufv.br/reveng/oairevistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br2175-68131414-3984opendoar:2023-01-19T13:32:47Engenharia na Agricultura - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS
NOTA TÉCNICA: CONSTRUÇÃO DE SONDAS TDR E AVALIAÇÃO EM DIFERENTES SOFTWARES DE APLICAÇÃO TÉCNICA
title TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS
spellingShingle TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS
Pavão, Glaucia Cristina
dimensionamento
programas de análise TDR
Reflectometria no Domínio do Tempo
title_short TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS
title_full TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS
title_fullStr TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS
title_full_unstemmed TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS
title_sort TDR PROBES CONSTRUCTION AND EVALUATION FOR ESTIMATING SAP FLOW IN WOODY PLANTS
author Pavão, Glaucia Cristina
author_facet Pavão, Glaucia Cristina
Simione, Júlia Rodrigues
Souza, Claudinei Fonseca
author_role author
author2 Simione, Júlia Rodrigues
Souza, Claudinei Fonseca
author2_role author
author
dc.contributor.author.fl_str_mv Pavão, Glaucia Cristina
Simione, Júlia Rodrigues
Souza, Claudinei Fonseca
dc.subject.por.fl_str_mv dimensionamento
programas de análise TDR
Reflectometria no Domínio do Tempo
topic dimensionamento
programas de análise TDR
Reflectometria no Domínio do Tempo
description The efficient water application in agriculture involves modern equipment and appropriate management of this resource. The water amount absorbed for crop can be determined by measuring xylem sap flow and, Time Domain Reflectometry (TDR) technique has potential to be accurate and virtually free of interference. Thus, the objective of this study was TDR probes construction and evaluation of different sizes that could be read in three different software for purpose of measuring sap flow in woody plants. The experiment was conducted at the Agricultural Sciences Center at UFSCar. Probes of six sizes (200, 150, 100, 70, 50 and 20 mm) were constructed and evaluated in distilled water at 20º C for three software applications of the technique, PCTDR at Campebell Scientific, WinTDR at Utah State University e o TDR-Lab at CSIC. The software demonstrates difficulties in automatic reading, WinTDR and PCTDR being more limited as the manual reading and PCTDR failed to perform readings in probes of 1.6 mm rod diameter. In conclusion, the TDRLab software is promising to analyze smaller sizes probes, but further studies are needed of the probes physical constitution, especially in epoxy for greater precision in the readings.
publishDate 2017
dc.date.none.fl_str_mv 2017-08-07
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufv.br/reveng/article/view/702
10.13083/reveng.v25i3.781
url https://periodicos.ufv.br/reveng/article/view/702
identifier_str_mv 10.13083/reveng.v25i3.781
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufv.br/reveng/article/view/702/465
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
dc.source.none.fl_str_mv Engineering in Agriculture; Vol. 25 No. 3 (2017); 283-289
Revista Engenharia na Agricultura - REVENG; v. 25 n. 3 (2017); 283-289
2175-6813
1414-3984
10.13083/reveng.v25i3
reponame:Engenharia na Agricultura
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str Engenharia na Agricultura
collection Engenharia na Agricultura
repository.name.fl_str_mv Engenharia na Agricultura - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv revistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br
_version_ 1800211146138976256

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