Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692

Detalhes bibliográficos
Autor(a) principal: Santos, Antonio Odair
Data de Publicação: 2008
Outros Autores: Bigas-Adão, Francisca Maria Rosiki, Barros, Camila de, Hernandez, José Luiz
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum. Agronomy (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1692
Resumo: Crop water monitoring is important for a detailed irrigation control. It is desirable to develop reliable and portable techniques to properly assess the water uptake of agricultural crops. An experiment was conducted in the IAC/Jundiaí, state of São Paulo aiming to achieve such developments. An integrated system based on heat pulse technique was designed and built in order to assess water uptake. Different probe configurations were tested, aiming to find the best sensor profile for field usage. Field and laboratory grown maize were used to calibrate the system. Testing the system on maize stems resulted in a coherent relationship between heat transport and sap flux, for two of the sensor configurations tested. Field results of water uptake determination, obtained comparatively with standard methodology, agreed with the daily-paired data and yielded reasonable values based on statistical Willmot index.
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spelling Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692Desenvolvimento instrumental para determinação direta da perda de água em plantas por meio do monitoramento do fluxo de seiva - DOI: 10.4025/actasciagron.v27i4.1692irrigaçãotranspiraçãomilho5.03.00.00-8 Engenharia AgrícolaCrop water monitoring is important for a detailed irrigation control. It is desirable to develop reliable and portable techniques to properly assess the water uptake of agricultural crops. An experiment was conducted in the IAC/Jundiaí, state of São Paulo aiming to achieve such developments. An integrated system based on heat pulse technique was designed and built in order to assess water uptake. Different probe configurations were tested, aiming to find the best sensor profile for field usage. Field and laboratory grown maize were used to calibrate the system. Testing the system on maize stems resulted in a coherent relationship between heat transport and sap flux, for two of the sensor configurations tested. Field results of water uptake determination, obtained comparatively with standard methodology, agreed with the daily-paired data and yielded reasonable values based on statistical Willmot index.O monitoramento das necessidades hídricas é fundamental para o controle minucioso da irrigação. Métodos não-fixos, portáteis e precisos se fazem necessários para a correta determinação do consumo hídrico, em cultivos agrícolas. Um experimento sobre a questão foi conduzido no IAC/Jundiaí, Estado de São Paulo. Um sistema integrado, baseado na marcação de seiva por micro-pulsos regulares de calor, foi desenvolvido para determinação contínua da curva da perda de água. Diferentes configurações na montagem de sensores foram testadas, buscando-se encontrar o melhor perfil para uso a campo, com base em materiais e em processos nacionais. O protótipo foi calibrado em milho envasado e testado a campo. Medições feitas no caule da cultura evidenciaram coerentes relações entre transporte de calor e fluxo de seiva, para dois tipos de configuração de sensores testados. Resultados de campo, obtidos comparativamente com metodologia padrão, para determinação da perda d’água, evidenciaram concordância entre as curvas pareadas, ponderados pelo teste de Willmot.Universidade Estadual de Maringá2008-04-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/169210.4025/actasciagron.v27i4.1692Acta Scientiarum. Agronomy; Vol 27 No 4 (2005); 687-695Acta Scientiarum. Agronomy; v. 27 n. 4 (2005); 687-6951807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1692/1120Santos, Antonio OdairBigas-Adão, Francisca Maria RosikiBarros, Camila deHernandez, José Luizinfo:eu-repo/semantics/openAccess2022-11-23T18:37:28Zoai:periodicos.uem.br/ojs:article/1692Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:37:28Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692
Desenvolvimento instrumental para determinação direta da perda de água em plantas por meio do monitoramento do fluxo de seiva - DOI: 10.4025/actasciagron.v27i4.1692
title Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692
spellingShingle Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692
Santos, Antonio Odair
irrigação
transpiração
milho
5.03.00.00-8 Engenharia Agrícola
title_short Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692
title_full Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692
title_fullStr Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692
title_full_unstemmed Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692
title_sort Instrumental improvement for assessment of plant water uptake through sap flux monitoring - DOI: 10.4025/actasciagron.v27i4.1692
author Santos, Antonio Odair
author_facet Santos, Antonio Odair
Bigas-Adão, Francisca Maria Rosiki
Barros, Camila de
Hernandez, José Luiz
author_role author
author2 Bigas-Adão, Francisca Maria Rosiki
Barros, Camila de
Hernandez, José Luiz
author2_role author
author
author
dc.contributor.author.fl_str_mv Santos, Antonio Odair
Bigas-Adão, Francisca Maria Rosiki
Barros, Camila de
Hernandez, José Luiz
dc.subject.por.fl_str_mv irrigação
transpiração
milho
5.03.00.00-8 Engenharia Agrícola
topic irrigação
transpiração
milho
5.03.00.00-8 Engenharia Agrícola
description Crop water monitoring is important for a detailed irrigation control. It is desirable to develop reliable and portable techniques to properly assess the water uptake of agricultural crops. An experiment was conducted in the IAC/Jundiaí, state of São Paulo aiming to achieve such developments. An integrated system based on heat pulse technique was designed and built in order to assess water uptake. Different probe configurations were tested, aiming to find the best sensor profile for field usage. Field and laboratory grown maize were used to calibrate the system. Testing the system on maize stems resulted in a coherent relationship between heat transport and sap flux, for two of the sensor configurations tested. Field results of water uptake determination, obtained comparatively with standard methodology, agreed with the daily-paired data and yielded reasonable values based on statistical Willmot index.
publishDate 2008
dc.date.none.fl_str_mv 2008-04-07
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1692
10.4025/actasciagron.v27i4.1692
url http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1692
identifier_str_mv 10.4025/actasciagron.v27i4.1692
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1692/1120
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 Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy; Vol 27 No 4 (2005); 687-695
Acta Scientiarum. Agronomy; v. 27 n. 4 (2005); 687-695
1807-8621
1679-9275
reponame:Acta Scientiarum. Agronomy (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Agronomy (Online)
collection Acta Scientiarum. Agronomy (Online)
repository.name.fl_str_mv Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br
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