CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT

Detalhes bibliográficos
Autor(a) principal: Oliveira, Luiz Fernando Coutinho de
Data de Publicação: 2007
Outros Autores: Oliveira, Ruth Zago, Borges, Lucas Bernardes, Wehr, Tiago Roberto, Bonomo, Robson
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/1855
Resumo: The objective of this study was to determine the crop coefficient (kc), diffusion resistance and leaf water potential coffee, Catucaí cultivar, in blooming and grain formation phases, submitted to two irrigation system management. The coffee evapotranspiration was determined by soil water balance, and crop evapotranspiration was assessed by Penman-Monteith (FAO-56) method. The irrigation application times were determined in two management systems: based on the percentage wetted area (P), and based on the location coefficient (Kl). The results allowed to conclude that the irrigation management using the location coefficient provided an increase of the irrigation application time, and, consequently, increasing the irrigation depth and the crop coefficient values, which reached the mean of 1.12. For the management system based on the percentage wetted area, the mean value of the crop coefficient, in the appraised period, was 1.06. The mean diffusion resistance and leaf water potential were lower when the management system was adopted with base in Kl, which provided an increase of the transpiration and, consequently, of kc. KEY-WORDS: Evapotranspiration; diffusion resistance; leaf water potential.
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spelling CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENTCOEFICIENTE DE CULTURA E RELAÇÕES HÍDRICAS DO CAFEEIRO, CULTIVAR CATUCAÍ, SOB DOIS SISTEMAS DE MANEJO DA IRRIGAÇÃOEvapotranspirationdiffusion resistanceleaf water potential The objective of this study was to determine the crop coefficient (kc), diffusion resistance and leaf water potential coffee, Catucaí cultivar, in blooming and grain formation phases, submitted to two irrigation system management. The coffee evapotranspiration was determined by soil water balance, and crop evapotranspiration was assessed by Penman-Monteith (FAO-56) method. The irrigation application times were determined in two management systems: based on the percentage wetted area (P), and based on the location coefficient (Kl). The results allowed to conclude that the irrigation management using the location coefficient provided an increase of the irrigation application time, and, consequently, increasing the irrigation depth and the crop coefficient values, which reached the mean of 1.12. For the management system based on the percentage wetted area, the mean value of the crop coefficient, in the appraised period, was 1.06. The mean diffusion resistance and leaf water potential were lower when the management system was adopted with base in Kl, which provided an increase of the transpiration and, consequently, of kc. KEY-WORDS: Evapotranspiration; diffusion resistance; leaf water potential. Este trabalho teve como objetivo determinar o coeficiente de cultura (kc), a resistência difusiva de vapor de água e o potencial hídrico foliar em cafeeiro, cultivar Catucaí, nas fases de floração e de formação dos grãos, sob dois sistemas de manejo da irrigação. Utilizou-se o balanço de água no solo para se determinar a evapotranspiração do cafeeiro, sendo a evapotranspiração de referência estimada pelo método de Penman-Monteith (FAO-56). Os tempos de aplicação das lâminas de água foram determinados levando-se em consideração dois sistemas de manejo: com base na porcentagem da área molhada (P) e no coeficiente de localização (Kl). Os resultados permitem concluir que o manejo da irrigação empregando o coeficiente de localização proporcionou um aumento do tempo de irrigação e, conseqüentemente, da lâmina de irrigação. Isso elevou os valores dos coeficientes de cultivo, que, em média, atingiu 1,12. Para o sistema de manejo baseado na porcentagem da área molhada, o valor médio do coeficiente de cultivo, no período avaliado, foi de 1,06. Os valores médios da resistência difusiva de vapor de água e os potenciais hídricos foliares foram inferiores quando se adotou o sistema baseado em Kl, que proporcionou aumento da transpiração e, conseqüentemente, do kc. PALAVRAS-CHAVE: Evapotranspiração; resistência difusiva; potencial hídrico foliar.Escola de Agronomia - Universidade Federal de Goiás2007-10-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimentalapplication/pdfhttps://revistas.ufg.br/pat/article/view/1855Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 37, n. 3, Jul./Sep. 2007; 154-162Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 37, n. 3, jul./set. 2007; 154-162Pesquisa Agropecuária Tropical; v. 37, n. 3, jul./set. 2007; 154-1621983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/1855/1761Oliveira, Luiz Fernando Coutinho deOliveira, Ruth ZagoBorges, Lucas BernardesWehr, Tiago RobertoBonomo, Robsoninfo:eu-repo/semantics/openAccess2020-02-27T00:01:36Zoai:ojs.revistas.ufg.br:article/1855Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:54:53.296851Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT
COEFICIENTE DE CULTURA E RELAÇÕES HÍDRICAS DO CAFEEIRO, CULTIVAR CATUCAÍ, SOB DOIS SISTEMAS DE MANEJO DA IRRIGAÇÃO
title CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT
spellingShingle CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT
Oliveira, Luiz Fernando Coutinho de
Evapotranspiration
diffusion resistance
leaf water potential
title_short CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT
title_full CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT
title_fullStr CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT
title_full_unstemmed CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT
title_sort CROP COEFFICIENT AND WATER RELATIONSHIPS OF COFFEE CATUCAÍ CULTIVAR UNDER TWO SYSTEMS OF IRRIGATION MANAGEMENT
author Oliveira, Luiz Fernando Coutinho de
author_facet Oliveira, Luiz Fernando Coutinho de
Oliveira, Ruth Zago
Borges, Lucas Bernardes
Wehr, Tiago Roberto
Bonomo, Robson
author_role author
author2 Oliveira, Ruth Zago
Borges, Lucas Bernardes
Wehr, Tiago Roberto
Bonomo, Robson
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, Luiz Fernando Coutinho de
Oliveira, Ruth Zago
Borges, Lucas Bernardes
Wehr, Tiago Roberto
Bonomo, Robson
dc.subject.por.fl_str_mv Evapotranspiration
diffusion resistance
leaf water potential
topic Evapotranspiration
diffusion resistance
leaf water potential
description The objective of this study was to determine the crop coefficient (kc), diffusion resistance and leaf water potential coffee, Catucaí cultivar, in blooming and grain formation phases, submitted to two irrigation system management. The coffee evapotranspiration was determined by soil water balance, and crop evapotranspiration was assessed by Penman-Monteith (FAO-56) method. The irrigation application times were determined in two management systems: based on the percentage wetted area (P), and based on the location coefficient (Kl). The results allowed to conclude that the irrigation management using the location coefficient provided an increase of the irrigation application time, and, consequently, increasing the irrigation depth and the crop coefficient values, which reached the mean of 1.12. For the management system based on the percentage wetted area, the mean value of the crop coefficient, in the appraised period, was 1.06. The mean diffusion resistance and leaf water potential were lower when the management system was adopted with base in Kl, which provided an increase of the transpiration and, consequently, of kc. KEY-WORDS: Evapotranspiration; diffusion resistance; leaf water potential.
publishDate 2007
dc.date.none.fl_str_mv 2007-10-15
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/1855
url https://revistas.ufg.br/pat/article/view/1855
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/1855/1761
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 Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 37, n. 3, Jul./Sep. 2007; 154-162
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 37, n. 3, jul./set. 2007; 154-162
Pesquisa Agropecuária Tropical; v. 37, n. 3, jul./set. 2007; 154-162
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874813329670144

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