Evapotranspiration, water use efficiency and crop coefficient of three lettuce varieties grown in a tropical region
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , |
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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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 |
repository.mail.fl_str_mv |
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1799130176810909696 |