Water salinity, nitrogen and phosphorus on photochemical efficiency and growth of west indian cherry

Detalhes bibliográficos
Autor(a) principal: Sá,Francisco V. da S.
Data de Publicação: 2018
Outros Autores: Gheyi,Hans R., Lima,Geovani S. de, Paiva,Emanoela P. de, Moreira,Rômulo C. L., Silva,Luderlândio de A.
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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spelling 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
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000300158
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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
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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
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instname_str Universidade Federal de Campina Grande (UFCG)
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reponame_str Revista Brasileira de Engenharia Agrícola e Ambiental (Online)
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