Lettuce growth and water consumption in NFT hydroponic system using brackish water
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000700636 |
Resumo: | The qualitative aspects of water, such as the preparation or replenishment of the nutrient solution, are critical to the success of hydroponic crops. Therefore, the aim of this study was to evaluate the behavior of “Americana” lettuce (cv. Tainá) under increasing levels of saline stress (0.2 - control, 1.2, 2.2, 3.2, 4.2 and 5.2 dS m-1), replenishing the evapotranspiration with brackish water in Experiment I and supply water (0.2 dS m-1) in Experiment II, both used in the preparation of the nutrient solution. In both experiments, the treatments were arranged in a randomized block design, with six treatments and four replicates. Shoot fresh matter, shoot dry matter and leaf area in Experiment I suffered reductions of 15.22, 12.67 and 15.6% per unit increase of EC, respectively. In Experiment II, reductions of 8.01, 6.90 and 8.14% were observed for the same variables, respectively. In Experiments I and II, linear decrease in water consumption due to the increase in salinity was observed, with reductions of 8.83 and 5.63% for each unit increase of electrical conductivity of water when the evapotranspiration was replenished using brackish and supply water, respectively. |
id |
UFCG-1_4e5140691d9aaa8d1a628ab08b90c5ef |
---|---|
oai_identifier_str |
oai:scielo:S1415-43662015000700636 |
network_acronym_str |
UFCG-1 |
network_name_str |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
repository_id_str |
|
spelling |
Lettuce growth and water consumption in NFT hydroponic system using brackish waterLactuca sativa L.hydroponicssalinityThe qualitative aspects of water, such as the preparation or replenishment of the nutrient solution, are critical to the success of hydroponic crops. Therefore, the aim of this study was to evaluate the behavior of “Americana” lettuce (cv. Tainá) under increasing levels of saline stress (0.2 - control, 1.2, 2.2, 3.2, 4.2 and 5.2 dS m-1), replenishing the evapotranspiration with brackish water in Experiment I and supply water (0.2 dS m-1) in Experiment II, both used in the preparation of the nutrient solution. In both experiments, the treatments were arranged in a randomized block design, with six treatments and four replicates. Shoot fresh matter, shoot dry matter and leaf area in Experiment I suffered reductions of 15.22, 12.67 and 15.6% per unit increase of EC, respectively. In Experiment II, reductions of 8.01, 6.90 and 8.14% were observed for the same variables, respectively. In Experiments I and II, linear decrease in water consumption due to the increase in salinity was observed, with reductions of 8.83 and 5.63% for each unit increase of electrical conductivity of water when the evapotranspiration was replenished using brackish and supply water, respectively.Departamento de Engenharia Agrícola - UFCG2015-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000700636Revista Brasileira de Engenharia Agrícola e Ambiental v.19 n.7 2015reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v19n7p636-642info:eu-repo/semantics/openAccessSoares,Hammady R.Silva,Ênio F. de F. eSilva,Gerônimo F. daPedrosa,Elvira M. R.Rolim,Mario M.Santos,Alexandre N.eng2015-07-21T00:00:00Zoai:scielo:S1415-43662015000700636Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2015-07-21T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false |
dc.title.none.fl_str_mv |
Lettuce growth and water consumption in NFT hydroponic system using brackish water |
title |
Lettuce growth and water consumption in NFT hydroponic system using brackish water |
spellingShingle |
Lettuce growth and water consumption in NFT hydroponic system using brackish water Soares,Hammady R. Lactuca sativa L. hydroponics salinity |
title_short |
Lettuce growth and water consumption in NFT hydroponic system using brackish water |
title_full |
Lettuce growth and water consumption in NFT hydroponic system using brackish water |
title_fullStr |
Lettuce growth and water consumption in NFT hydroponic system using brackish water |
title_full_unstemmed |
Lettuce growth and water consumption in NFT hydroponic system using brackish water |
title_sort |
Lettuce growth and water consumption in NFT hydroponic system using brackish water |
author |
Soares,Hammady R. |
author_facet |
Soares,Hammady R. Silva,Ênio F. de F. e Silva,Gerônimo F. da Pedrosa,Elvira M. R. Rolim,Mario M. Santos,Alexandre N. |
author_role |
author |
author2 |
Silva,Ênio F. de F. e Silva,Gerônimo F. da Pedrosa,Elvira M. R. Rolim,Mario M. Santos,Alexandre N. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Soares,Hammady R. Silva,Ênio F. de F. e Silva,Gerônimo F. da Pedrosa,Elvira M. R. Rolim,Mario M. Santos,Alexandre N. |
dc.subject.por.fl_str_mv |
Lactuca sativa L. hydroponics salinity |
topic |
Lactuca sativa L. hydroponics salinity |
description |
The qualitative aspects of water, such as the preparation or replenishment of the nutrient solution, are critical to the success of hydroponic crops. Therefore, the aim of this study was to evaluate the behavior of “Americana” lettuce (cv. Tainá) under increasing levels of saline stress (0.2 - control, 1.2, 2.2, 3.2, 4.2 and 5.2 dS m-1), replenishing the evapotranspiration with brackish water in Experiment I and supply water (0.2 dS m-1) in Experiment II, both used in the preparation of the nutrient solution. In both experiments, the treatments were arranged in a randomized block design, with six treatments and four replicates. Shoot fresh matter, shoot dry matter and leaf area in Experiment I suffered reductions of 15.22, 12.67 and 15.6% per unit increase of EC, respectively. In Experiment II, reductions of 8.01, 6.90 and 8.14% were observed for the same variables, respectively. In Experiments I and II, linear decrease in water consumption due to the increase in salinity was observed, with reductions of 8.83 and 5.63% for each unit increase of electrical conductivity of water when the evapotranspiration was replenished using brackish and supply water, respectively. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000700636 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000700636 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-1929/agriambi.v19n7p636-642 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
publisher.none.fl_str_mv |
Departamento de Engenharia Agrícola - UFCG |
dc.source.none.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental v.19 n.7 2015 reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online) instname:Universidade Federal de Campina Grande (UFCG) instacron:UFCG |
instname_str |
Universidade Federal de Campina Grande (UFCG) |
instacron_str |
UFCG |
institution |
UFCG |
reponame_str |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
collection |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG) |
repository.mail.fl_str_mv |
||agriambi@agriambi.com.br |
_version_ |
1750297683742949376 |