Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity

Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity

ABSTRACTThe castor bean crop plays an important social, environmental and economic role, especially due to possibility of its use as feedstock for the generation of clean energy. Thus, this study aimed to evaluate the contents of photosynthetic pigments, cell membrane extrusion and the relative water content in the leaves of the castor bean cultivar ‘BRS Energia’ under silicon and salinity levels. The experiment was carried out at Embrapa Cotton, in a completely randomized design, in a 4 x 4 factorial scheme, and the treatments consisted of four silicon levels (0, 100, 200 and 300 mg L-1) and four water salinity levels of (ECw 0, 2, 4 and 6 dS m-1), with three replicates. The gradual increase in salinity levels reduced the concentration of photosynthetic pigments, relative water content in the leaves and increased cell membrane extrusion. The increase in the concentration of silicon reduced the harmful effects of salts on the analysed variables in the castor bean ‘BRS Energia’.

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Main Authors: Ferraz,Rener L. de S., Magalhães,Ivomberg D., Beltrão,Napoleão E. de M., Melo,Alberto S. de, Brito Neto,Jósé F. de, Rocha,Maria do S.
Format: Digital revista
Language:English
Published: Departamento de Engenharia Agrícola - UFCG 2015
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000900841
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spelling oai:scielo:S1415-436620150009008412015-08-27Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinityFerraz,Rener L. de S.Magalhães,Ivomberg D.Beltrão,Napoleão E. de M.Melo,Alberto S. deBrito Neto,Jósé F. deRocha,Maria do S. Ricinus communis L. chlorophyll electrolyte leakage electrical conductivity leaf fertilization ABSTRACTThe castor bean crop plays an important social, environmental and economic role, especially due to possibility of its use as feedstock for the generation of clean energy. Thus, this study aimed to evaluate the contents of photosynthetic pigments, cell membrane extrusion and the relative water content in the leaves of the castor bean cultivar ‘BRS Energia’ under silicon and salinity levels. The experiment was carried out at Embrapa Cotton, in a completely randomized design, in a 4 x 4 factorial scheme, and the treatments consisted of four silicon levels (0, 100, 200 and 300 mg L-1) and four water salinity levels of (ECw 0, 2, 4 and 6 dS m-1), with three replicates. The gradual increase in salinity levels reduced the concentration of photosynthetic pigments, relative water content in the leaves and increased cell membrane extrusion. The increase in the concentration of silicon reduced the harmful effects of salts on the analysed variables in the castor bean ‘BRS Energia’.info:eu-repo/semantics/openAccessDepartamento de Engenharia Agrícola - UFCGRevista Brasileira de Engenharia Agrícola e Ambiental v.19 n.9 20152015-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000900841en10.1590/1807-1929/agriambi.v19n9p841-848
institution SCIELO
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country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
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region America del Sur
libraryname SciELO
language English
format Digital
author Ferraz,Rener L. de S.
Magalhães,Ivomberg D.
Beltrão,Napoleão E. de M.
Melo,Alberto S. de
Brito Neto,Jósé F. de
Rocha,Maria do S.
spellingShingle Ferraz,Rener L. de S.
Magalhães,Ivomberg D.
Beltrão,Napoleão E. de M.
Melo,Alberto S. de
Brito Neto,Jósé F. de
Rocha,Maria do S.
Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity
author_facet Ferraz,Rener L. de S.
Magalhães,Ivomberg D.
Beltrão,Napoleão E. de M.
Melo,Alberto S. de
Brito Neto,Jósé F. de
Rocha,Maria do S.
author_sort Ferraz,Rener L. de S.
title Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity
title_short Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity
title_full Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity
title_fullStr Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity
title_full_unstemmed Photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity
title_sort photosynthetic pigments, cell extrusion and relative leaf water content of the castor bean under silicon and salinity
description ABSTRACTThe castor bean crop plays an important social, environmental and economic role, especially due to possibility of its use as feedstock for the generation of clean energy. Thus, this study aimed to evaluate the contents of photosynthetic pigments, cell membrane extrusion and the relative water content in the leaves of the castor bean cultivar ‘BRS Energia’ under silicon and salinity levels. The experiment was carried out at Embrapa Cotton, in a completely randomized design, in a 4 x 4 factorial scheme, and the treatments consisted of four silicon levels (0, 100, 200 and 300 mg L-1) and four water salinity levels of (ECw 0, 2, 4 and 6 dS m-1), with three replicates. The gradual increase in salinity levels reduced the concentration of photosynthetic pigments, relative water content in the leaves and increased cell membrane extrusion. The increase in the concentration of silicon reduced the harmful effects of salts on the analysed variables in the castor bean ‘BRS Energia’.
publisher Departamento de Engenharia Agrícola - UFCG
publishDate 2015
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015000900841
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