Effect of fertilisation with urea on development in the ornamental bromeliad Aechmea fasciata
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
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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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 |
format |
article |
status_str |
publishedVersion |
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 |
eu_rights_str_mv |
openAccess |
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) |
repository.mail.fl_str_mv |
||alekdutra@ufc.br|| ccarev@ufc.br |
_version_ |
1750297488913334272 |