Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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=S1415-43662021000900620 |
Resumo: | ABSTRACT Adequate potassium and calcium nutrition is a strategy to reduce salt stress on tomatoes, as it reduces nutritional imbalance in plants. With the objective of evaluating tomato production using irrigation with saline waters and fertigation with different potassium-calcium proportions, an experiment was carried out in a protected environment in Mossoró, RN, Brazil. The experimental design used was randomized blocks, in a 5 x 4 factorial scheme, with four replicates. The treatments consisted of the combination of four electrical conductivity of nutrient solution (ECns) (1.75; 3.25; 4.75; and 6.25 dS m-1) combined with five ionic proportions (m/m) of potassium and calcium (F1 = 2.43:1; F2 = 2.03:1; F3 = 1.62:1; F4 = 1.30:1 and F5 = 1.08:1). The response variables were: number of fruits, mean fruit weight, fruit production per plant and relative yield. It was possible to identify satisfactory results of production when higher salinity was used. Fertigation with low K+/Ca2+ proportions intensifies the effect of salinity on tomato crop. |
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Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environmentLycopersicon esculentum Millnutritionpotassiumcalciumsalt stressABSTRACT Adequate potassium and calcium nutrition is a strategy to reduce salt stress on tomatoes, as it reduces nutritional imbalance in plants. With the objective of evaluating tomato production using irrigation with saline waters and fertigation with different potassium-calcium proportions, an experiment was carried out in a protected environment in Mossoró, RN, Brazil. The experimental design used was randomized blocks, in a 5 x 4 factorial scheme, with four replicates. The treatments consisted of the combination of four electrical conductivity of nutrient solution (ECns) (1.75; 3.25; 4.75; and 6.25 dS m-1) combined with five ionic proportions (m/m) of potassium and calcium (F1 = 2.43:1; F2 = 2.03:1; F3 = 1.62:1; F4 = 1.30:1 and F5 = 1.08:1). The response variables were: number of fruits, mean fruit weight, fruit production per plant and relative yield. It was possible to identify satisfactory results of production when higher salinity was used. Fertigation with low K+/Ca2+ proportions intensifies the effect of salinity on tomato crop.Departamento de Engenharia Agrícola - UFCG2021-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662021000900620Revista Brasileira de Engenharia Agrícola e Ambiental v.25 n.9 2021reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v25n9p620-625info:eu-repo/semantics/openAccessOliveira,Francisco de A. dePaiva,Francisco I. G.Medeiros,José F. deMelo,Mikhael R. de S.Oliveira,Mychelle K. T. deSilvas,Ricardo C. P. daeng2021-06-28T00:00:00Zoai:scielo:S1415-43662021000900620Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2021-06-28T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false |
dc.title.none.fl_str_mv |
Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment |
title |
Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment |
spellingShingle |
Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment Oliveira,Francisco de A. de Lycopersicon esculentum Mill nutrition potassium calcium salt stress |
title_short |
Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment |
title_full |
Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment |
title_fullStr |
Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment |
title_full_unstemmed |
Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment |
title_sort |
Salinity tolerance of tomato fertigated with different K+/Ca2+ proportions in protected environment |
author |
Oliveira,Francisco de A. de |
author_facet |
Oliveira,Francisco de A. de Paiva,Francisco I. G. Medeiros,José F. de Melo,Mikhael R. de S. Oliveira,Mychelle K. T. de Silvas,Ricardo C. P. da |
author_role |
author |
author2 |
Paiva,Francisco I. G. Medeiros,José F. de Melo,Mikhael R. de S. Oliveira,Mychelle K. T. de Silvas,Ricardo C. P. da |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Oliveira,Francisco de A. de Paiva,Francisco I. G. Medeiros,José F. de Melo,Mikhael R. de S. Oliveira,Mychelle K. T. de Silvas,Ricardo C. P. da |
dc.subject.por.fl_str_mv |
Lycopersicon esculentum Mill nutrition potassium calcium salt stress |
topic |
Lycopersicon esculentum Mill nutrition potassium calcium salt stress |
description |
ABSTRACT Adequate potassium and calcium nutrition is a strategy to reduce salt stress on tomatoes, as it reduces nutritional imbalance in plants. With the objective of evaluating tomato production using irrigation with saline waters and fertigation with different potassium-calcium proportions, an experiment was carried out in a protected environment in Mossoró, RN, Brazil. The experimental design used was randomized blocks, in a 5 x 4 factorial scheme, with four replicates. The treatments consisted of the combination of four electrical conductivity of nutrient solution (ECns) (1.75; 3.25; 4.75; and 6.25 dS m-1) combined with five ionic proportions (m/m) of potassium and calcium (F1 = 2.43:1; F2 = 2.03:1; F3 = 1.62:1; F4 = 1.30:1 and F5 = 1.08:1). The response variables were: number of fruits, mean fruit weight, fruit production per plant and relative yield. It was possible to identify satisfactory results of production when higher salinity was used. Fertigation with low K+/Ca2+ proportions intensifies the effect of salinity on tomato crop. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-09-01 |
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=S1415-43662021000900620 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662021000900620 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-1929/agriambi.v25n9p620-625 |
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.25 n.9 2021 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_ |
1750297688177377280 |