Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region

Detalhes bibliográficos
Autor(a) principal: Silva, Vicente de Paulo R. da
Data de Publicação: 2019
Outros Autores: Tavares, Alexandra L., Sousa, Inajá F. de, Silva, Thieres G.F. da, Holanda, Romildo M. de, Souza, Enio P. de, Silva, Bernardo B. da, Braga, Célia C., Almeida, Rafaela S.R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://doi.org/10.19084/RCA18042
Resumo: Three field experiments were carried out in a tropical environment in Brazil in order to evaluate the effect of planting date on crop evapotranspiration (ETc), crop coefficient (Kc) and water use efficiency (WUE) of three lettuce (Lactuca sativa L.) cultivars grown in different seasons (autumn, winter and summer) under tropical climate. ETcvalues were obtained through the soil water balance method and reference evapotranspiration (ETo) through the Penman-Monteith method, using data collected in an automatic weather station located close to the experimental area. The results of the research showed that the mean values of ETc and Kc for lettuce were 3.5 mm day-1 and 0.82, respectively. The curly cultivar showed the highest yield (40.8 kg ha-1) during the autumn transplanting date. Results also showed that the three lettuce varieties have different responses to the climatic conditions. The greatest WUE was observed for the three lettuce varieties when they were grown during the autumn growing season, and the lowest values occurred during the winter growing season.
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spelling Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical regionEvapotranspiração, eficiência do uso de água e coeficiente de cultivo de três variedades de alface cultivadas em região tropicalGeralThree field experiments were carried out in a tropical environment in Brazil in order to evaluate the effect of planting date on crop evapotranspiration (ETc), crop coefficient (Kc) and water use efficiency (WUE) of three lettuce (Lactuca sativa L.) cultivars grown in different seasons (autumn, winter and summer) under tropical climate. ETcvalues were obtained through the soil water balance method and reference evapotranspiration (ETo) through the Penman-Monteith method, using data collected in an automatic weather station located close to the experimental area. The results of the research showed that the mean values of ETc and Kc for lettuce were 3.5 mm day-1 and 0.82, respectively. The curly cultivar showed the highest yield (40.8 kg ha-1) during the autumn transplanting date. Results also showed that the three lettuce varieties have different responses to the climatic conditions. The greatest WUE was observed for the three lettuce varieties when they were grown during the autumn growing season, and the lowest values occurred during the winter growing season.Três experimentos de campo foram conduzidos em ambiente tropical no Brasil com o objetivo de avaliar os efeitos da data de plantio sobre a evapotranspiração (ETc), o coeficiente de cultivo (Kc) e eficiência de uso da água (EUA) de três variedades de alface (Lactuca sativa L.). A cultura foi cultivada em diferentes épocas do ano (outono, inverno e verão) sob clima tropical. Os valores de ETc foram obtidos através do método do balanço hídrico do solo e a evapotranspiração de referência (ETo) pelo método de Penman-Monteith, utilizando dados coletados em uma estação meteorológica automática localizada próxima à área experimental. Os resultados da pesquisa mostraram que os valores médios de ETc e Kc do alface foram 3,5 mm dia-1 e 0,82, respectivamente. A variedade crespa apresentou a maior produtividade (40,8 kg ha-1) durante o plantio de outono. Os resultados também evidenciaram que as três variedades de alface têm respostas diferentes às condições climáticas da região. A maior EUA das três variedades de alface ocorreram quando elas foram cultivadas durante a estação o outono e os valores mais baixos ocorreram durante o cultivo de inverno.Sociedade de Ciências Agrárias de Portugal2019-01-18T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://doi.org/10.19084/RCA18042eng2183-041X0871-018XSilva, Vicente de Paulo R. daTavares, Alexandra L.Sousa, Inajá F. deSilva, Thieres G.F. daHolanda, Romildo M. deSouza, Enio P. deSilva, Bernardo B. daBraga, Célia C.Almeida, Rafaela S.R.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T09:24:51Zoai:ojs.revistas.rcaap.pt:article/16744Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:31:04.060146Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
Evapotranspiração, eficiência do uso de água e coeficiente de cultivo de três variedades de alface cultivadas em região tropical
title Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
spellingShingle Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
Silva, Vicente de Paulo R. da
Geral
title_short Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
title_full Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
title_fullStr Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
title_full_unstemmed Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
title_sort Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
author Silva, Vicente de Paulo R. da
author_facet Silva, Vicente de Paulo R. da
Tavares, Alexandra L.
Sousa, Inajá F. de
Silva, Thieres G.F. da
Holanda, Romildo M. de
Souza, Enio P. de
Silva, Bernardo B. da
Braga, Célia C.
Almeida, Rafaela S.R.
author_role author
author2 Tavares, Alexandra L.
Sousa, Inajá F. de
Silva, Thieres G.F. da
Holanda, Romildo M. de
Souza, Enio P. de
Silva, Bernardo B. da
Braga, Célia C.
Almeida, Rafaela S.R.
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, Vicente de Paulo R. da
Tavares, Alexandra L.
Sousa, Inajá F. de
Silva, Thieres G.F. da
Holanda, Romildo M. de
Souza, Enio P. de
Silva, Bernardo B. da
Braga, Célia C.
Almeida, Rafaela S.R.
dc.subject.por.fl_str_mv Geral
topic Geral
description Three field experiments were carried out in a tropical environment in Brazil in order to evaluate the effect of planting date on crop evapotranspiration (ETc), crop coefficient (Kc) and water use efficiency (WUE) of three lettuce (Lactuca sativa L.) cultivars grown in different seasons (autumn, winter and summer) under tropical climate. ETcvalues were obtained through the soil water balance method and reference evapotranspiration (ETo) through the Penman-Monteith method, using data collected in an automatic weather station located close to the experimental area. The results of the research showed that the mean values of ETc and Kc for lettuce were 3.5 mm day-1 and 0.82, respectively. The curly cultivar showed the highest yield (40.8 kg ha-1) during the autumn transplanting date. Results also showed that the three lettuce varieties have different responses to the climatic conditions. The greatest WUE was observed for the three lettuce varieties when they were grown during the autumn growing season, and the lowest values occurred during the winter growing season.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-18T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://doi.org/10.19084/RCA18042
url https://doi.org/10.19084/RCA18042
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2183-041X
0871-018X
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Sociedade de Ciências Agrárias de Portugal
publisher.none.fl_str_mv Sociedade de Ciências Agrárias de Portugal
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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