Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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=S1415-43662018000300158 |
Resumo: | ABSTRACT The objective of this study was to evaluate the interaction between water salinity and doses of nitrogen and phosphorus on chlorophyll a fluorescence and on the growth of West Indian Cherry (‘acerola’) plants in the initial growth stage. The research was carried out in a protected environment, in lysimeters filled with Regolithic Neosol of loamy clay texture and low initial phosphorus content. The experiment was conducted in a randomized block design, arranged in a factorial scheme with two factors, five levels of electrical conductivity of the irrigation water - ECw (0.6, 1.4, 2.2, 3.0 and 3.8 dS m-1) and four proportions of the recommendation of phosphorus/nitrogen - P/N (100:100, 140:100, 100:140 and 140:140% P/N of recommendation), with three replicates, and each plot consisted of one plant. Water salinity above 2.2 dS m-1 decreases the quantum efficiency of photosystem II and the growth of west indian cherry plants. Increase in nitrogen and/or phosphorus supply improves the energy stability of west indian cherry plants by reducing the effects of salt stress on the quantum efficiency of photosystem II. The increase of 40% in the nitrogen dose increased the chlorophyll a fluorescence, but did not influence the plant growth. |
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Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherrychlorophyll fluorescencesaline stressfertilizationMalphigia emarginataABSTRACT The objective of this study was to evaluate the interaction between water salinity and doses of nitrogen and phosphorus on chlorophyll a fluorescence and on the growth of West Indian Cherry (‘acerola’) plants in the initial growth stage. The research was carried out in a protected environment, in lysimeters filled with Regolithic Neosol of loamy clay texture and low initial phosphorus content. The experiment was conducted in a randomized block design, arranged in a factorial scheme with two factors, five levels of electrical conductivity of the irrigation water - ECw (0.6, 1.4, 2.2, 3.0 and 3.8 dS m-1) and four proportions of the recommendation of phosphorus/nitrogen - P/N (100:100, 140:100, 100:140 and 140:140% P/N of recommendation), with three replicates, and each plot consisted of one plant. Water salinity above 2.2 dS m-1 decreases the quantum efficiency of photosystem II and the growth of west indian cherry plants. Increase in nitrogen and/or phosphorus supply improves the energy stability of west indian cherry plants by reducing the effects of salt stress on the quantum efficiency of photosystem II. The increase of 40% in the nitrogen dose increased the chlorophyll a fluorescence, but did not influence the plant growth.Departamento de Engenharia Agrícola - UFCG2018-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000300158Revista Brasileira de Engenharia Agrícola e Ambiental v.22 n.3 2018reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v22n3p158-163info:eu-repo/semantics/openAccessSá,Francisco V. da S.Gheyi,Hans R.Lima,Geovani S. dePaiva,Emanoela P. deMoreira,Rômulo C. L.Silva,Luderlândio de A.eng2018-02-20T00:00:00Zoai:scielo:S1415-43662018000300158Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2018-02-20T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false |
dc.title.none.fl_str_mv |
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry |
title |
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry |
spellingShingle |
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry Sá,Francisco V. da S. chlorophyll fluorescence saline stress fertilization Malphigia emarginata |
title_short |
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry |
title_full |
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry |
title_fullStr |
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry |
title_full_unstemmed |
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry |
title_sort |
Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry |
author |
Sá,Francisco V. da S. |
author_facet |
Sá,Francisco V. da S. Gheyi,Hans R. Lima,Geovani S. de Paiva,Emanoela P. de Moreira,Rômulo C. L. Silva,Luderlândio de A. |
author_role |
author |
author2 |
Gheyi,Hans R. Lima,Geovani S. de Paiva,Emanoela P. de Moreira,Rômulo C. L. Silva,Luderlândio de A. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Sá,Francisco V. da S. Gheyi,Hans R. Lima,Geovani S. de Paiva,Emanoela P. de Moreira,Rômulo C. L. Silva,Luderlândio de A. |
dc.subject.por.fl_str_mv |
chlorophyll fluorescence saline stress fertilization Malphigia emarginata |
topic |
chlorophyll fluorescence saline stress fertilization Malphigia emarginata |
description |
ABSTRACT The objective of this study was to evaluate the interaction between water salinity and doses of nitrogen and phosphorus on chlorophyll a fluorescence and on the growth of West Indian Cherry (‘acerola’) plants in the initial growth stage. The research was carried out in a protected environment, in lysimeters filled with Regolithic Neosol of loamy clay texture and low initial phosphorus content. The experiment was conducted in a randomized block design, arranged in a factorial scheme with two factors, five levels of electrical conductivity of the irrigation water - ECw (0.6, 1.4, 2.2, 3.0 and 3.8 dS m-1) and four proportions of the recommendation of phosphorus/nitrogen - P/N (100:100, 140:100, 100:140 and 140:140% P/N of recommendation), with three replicates, and each plot consisted of one plant. Water salinity above 2.2 dS m-1 decreases the quantum efficiency of photosystem II and the growth of west indian cherry plants. Increase in nitrogen and/or phosphorus supply improves the energy stability of west indian cherry plants by reducing the effects of salt stress on the quantum efficiency of photosystem II. The increase of 40% in the nitrogen dose increased the chlorophyll a fluorescence, but did not influence the plant growth. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-03-01 |
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=S1415-43662018000300158 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000300158 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-1929/agriambi.v22n3p158-163 |
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.22 n.3 2018 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 |
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1750297685974319104 |