Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata

Detalhes bibliográficos
Autor(a) principal: Giampaoli,Patricia
Data de Publicação: 2017
Outros Autores: Santos,Daniela Soares dos, Mollo,Luciana, Kanashiro,Shoey, Tavares,Armando Reis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista ciência agronômica (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400657
Resumo: ABSTRACT The aim of this study was to evaluate the effect of urea fertiliser on the bromeliad, Aechmea fasciata. Plants were submitted to weekly treatments with a solution of 0.0, 0.5, 1.0, 1.5 or 2.0 g urea L-1. After 210 days of the experiment, biometric variables of growth and development of the root and shoot systems were analysed, together with foliar levels of chlorophyll a and b, and of carotenoids. The experimental design was of randomised blocks with four replications; eight plants were used per plot. The data were submitted to regression analysis. The highest values for chlorophyll a and carotenoid content were obtained at a concentration of 1.23 g L-1 urea, and for chlorophyll b at a concentration 1.75 g L-1 urea. Plants of A. fasciata submitted to a solution with no nitrogen showed marked chlorosis of the leaves and reduced growth and development. The mean value for the maximum levels of photosynthetic pigments was 1.40 g L-1 urea, and this can be used as an indicator of the nutritional status of nitrogen in the species. From the results, an application of 1.46 g L-1 urea to the tank in A. fasciata is recommended, as this gave the greatest accumulation of total dry weight and an increase in the number of leaves.
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spelling Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciataBromeliaceaeNitrogenMineral nutritionChlorophyllABSTRACT The aim of this study was to evaluate the effect of urea fertiliser on the bromeliad, Aechmea fasciata. Plants were submitted to weekly treatments with a solution of 0.0, 0.5, 1.0, 1.5 or 2.0 g urea L-1. After 210 days of the experiment, biometric variables of growth and development of the root and shoot systems were analysed, together with foliar levels of chlorophyll a and b, and of carotenoids. The experimental design was of randomised blocks with four replications; eight plants were used per plot. The data were submitted to regression analysis. The highest values for chlorophyll a and carotenoid content were obtained at a concentration of 1.23 g L-1 urea, and for chlorophyll b at a concentration 1.75 g L-1 urea. Plants of A. fasciata submitted to a solution with no nitrogen showed marked chlorosis of the leaves and reduced growth and development. The mean value for the maximum levels of photosynthetic pigments was 1.40 g L-1 urea, and this can be used as an indicator of the nutritional status of nitrogen in the species. From the results, an application of 1.46 g L-1 urea to the tank in A. fasciata is recommended, as this gave the greatest accumulation of total dry weight and an increase in the number of leaves.Universidade Federal do Ceará2017-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400657Revista Ciência Agronômica v.48 n.4 2017reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFC10.5935/1806-6690.20170076info:eu-repo/semantics/openAccessGiampaoli,PatriciaSantos,Daniela Soares dosMollo,LucianaKanashiro,ShoeyTavares,Armando Reiseng2017-07-26T00:00:00Zoai:scielo:S1806-66902017000400657Revistahttp://www.ccarevista.ufc.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2017-07-26T00:00Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
title Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
spellingShingle Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
Giampaoli,Patricia
Bromeliaceae
Nitrogen
Mineral nutrition
Chlorophyll
title_short Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
title_full Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
title_fullStr Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
title_full_unstemmed Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
title_sort Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
author Giampaoli,Patricia
author_facet Giampaoli,Patricia
Santos,Daniela Soares dos
Mollo,Luciana
Kanashiro,Shoey
Tavares,Armando Reis
author_role author
author2 Santos,Daniela Soares dos
Mollo,Luciana
Kanashiro,Shoey
Tavares,Armando Reis
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Giampaoli,Patricia
Santos,Daniela Soares dos
Mollo,Luciana
Kanashiro,Shoey
Tavares,Armando Reis
dc.subject.por.fl_str_mv Bromeliaceae
Nitrogen
Mineral nutrition
Chlorophyll
topic Bromeliaceae
Nitrogen
Mineral nutrition
Chlorophyll
description ABSTRACT The aim of this study was to evaluate the effect of urea fertiliser on the bromeliad, Aechmea fasciata. Plants were submitted to weekly treatments with a solution of 0.0, 0.5, 1.0, 1.5 or 2.0 g urea L-1. After 210 days of the experiment, biometric variables of growth and development of the root and shoot systems were analysed, together with foliar levels of chlorophyll a and b, and of carotenoids. The experimental design was of randomised blocks with four replications; eight plants were used per plot. The data were submitted to regression analysis. The highest values for chlorophyll a and carotenoid content were obtained at a concentration of 1.23 g L-1 urea, and for chlorophyll b at a concentration 1.75 g L-1 urea. Plants of A. fasciata submitted to a solution with no nitrogen showed marked chlorosis of the leaves and reduced growth and development. The mean value for the maximum levels of photosynthetic pigments was 1.40 g L-1 urea, and this can be used as an indicator of the nutritional status of nitrogen in the species. From the results, an application of 1.46 g L-1 urea to the tank in A. fasciata is recommended, as this gave the greatest accumulation of total dry weight and an increase in the number of leaves.
publishDate 2017
dc.date.none.fl_str_mv 2017-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400657
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000400657
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/1806-6690.20170076
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 Universidade Federal do Ceará
publisher.none.fl_str_mv Universidade Federal do Ceará
dc.source.none.fl_str_mv Revista Ciência Agronômica v.48 n.4 2017
reponame:Revista ciência agronômica (Online)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Revista ciência agronômica (Online)
collection Revista ciência agronômica (Online)
repository.name.fl_str_mv Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)
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