Silicon and boron mitigate the effects of water deficit on sunflower
Autor(a) principal: | |
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Data de Publicação: | 2019 |
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=S1415-43662019000300175 |
Resumo: | ABSTRACT The objective of this study was to evaluate the effect of Ca and Mg silicate and B on the gas exchange, leaf water potential and chlorophyll fluorescence parameters in the sunflower variety Embrapa 122 -V2000 under water stress conditions. The trial was conducted in Red Yellow Latosol with very clayey texture, with contrasting levels of Si and B and subjected to water deficit. The experimental design was randomized blocks in a 24 factorial arrangement, with five replicates. Treatments consisted of the combination of two acidity corrective agents (calcium magnesium silicate and dolomitic limestone), two levels of base saturation (30 and 70%), two levels of B (0.18 mg dm-3 - value available in the soil and 1.20 mg dm-3) and two water regimes (with and without water stress from the beginning of flowering). It can be concluded that the supply of Si and B can reduce the damage to sunflower caused by water stress. |
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Silicon and boron mitigate the effects of water deficit on sunflowerHelianthus annuuschlorophyll fluorescencegas exchangeleaf water potentialABSTRACT The objective of this study was to evaluate the effect of Ca and Mg silicate and B on the gas exchange, leaf water potential and chlorophyll fluorescence parameters in the sunflower variety Embrapa 122 -V2000 under water stress conditions. The trial was conducted in Red Yellow Latosol with very clayey texture, with contrasting levels of Si and B and subjected to water deficit. The experimental design was randomized blocks in a 24 factorial arrangement, with five replicates. Treatments consisted of the combination of two acidity corrective agents (calcium magnesium silicate and dolomitic limestone), two levels of base saturation (30 and 70%), two levels of B (0.18 mg dm-3 - value available in the soil and 1.20 mg dm-3) and two water regimes (with and without water stress from the beginning of flowering). It can be concluded that the supply of Si and B can reduce the damage to sunflower caused by water stress.Departamento de Engenharia Agrícola - UFCG2019-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000300175Revista Brasileira de Engenharia Agrícola e Ambiental v.23 n.3 2019reponame:Revista Brasileira de Engenharia Agrícola e Ambiental (Online)instname:Universidade Federal de Campina Grande (UFCG)instacron:UFCG10.1590/1807-1929/agriambi.v23n3p175-182info:eu-repo/semantics/openAccessNeves,Jose M. G.Aquino,Leonardo A. deBerger,Paulo G.Neves,Júlio C. L.Rocha,Genelício C.Barbosa,Edimilson A.eng2019-03-07T00:00:00Zoai:scielo:S1415-43662019000300175Revistahttp://www.scielo.br/rbeaaPUBhttps://old.scielo.br/oai/scielo-oai.php||agriambi@agriambi.com.br1807-19291415-4366opendoar:2019-03-07T00:00Revista Brasileira de Engenharia Agrícola e Ambiental (Online) - Universidade Federal de Campina Grande (UFCG)false |
dc.title.none.fl_str_mv |
Silicon and boron mitigate the effects of water deficit on sunflower |
title |
Silicon and boron mitigate the effects of water deficit on sunflower |
spellingShingle |
Silicon and boron mitigate the effects of water deficit on sunflower Neves,Jose M. G. Helianthus annuus chlorophyll fluorescence gas exchange leaf water potential |
title_short |
Silicon and boron mitigate the effects of water deficit on sunflower |
title_full |
Silicon and boron mitigate the effects of water deficit on sunflower |
title_fullStr |
Silicon and boron mitigate the effects of water deficit on sunflower |
title_full_unstemmed |
Silicon and boron mitigate the effects of water deficit on sunflower |
title_sort |
Silicon and boron mitigate the effects of water deficit on sunflower |
author |
Neves,Jose M. G. |
author_facet |
Neves,Jose M. G. Aquino,Leonardo A. de Berger,Paulo G. Neves,Júlio C. L. Rocha,Genelício C. Barbosa,Edimilson A. |
author_role |
author |
author2 |
Aquino,Leonardo A. de Berger,Paulo G. Neves,Júlio C. L. Rocha,Genelício C. Barbosa,Edimilson A. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Neves,Jose M. G. Aquino,Leonardo A. de Berger,Paulo G. Neves,Júlio C. L. Rocha,Genelício C. Barbosa,Edimilson A. |
dc.subject.por.fl_str_mv |
Helianthus annuus chlorophyll fluorescence gas exchange leaf water potential |
topic |
Helianthus annuus chlorophyll fluorescence gas exchange leaf water potential |
description |
ABSTRACT The objective of this study was to evaluate the effect of Ca and Mg silicate and B on the gas exchange, leaf water potential and chlorophyll fluorescence parameters in the sunflower variety Embrapa 122 -V2000 under water stress conditions. The trial was conducted in Red Yellow Latosol with very clayey texture, with contrasting levels of Si and B and subjected to water deficit. The experimental design was randomized blocks in a 24 factorial arrangement, with five replicates. Treatments consisted of the combination of two acidity corrective agents (calcium magnesium silicate and dolomitic limestone), two levels of base saturation (30 and 70%), two levels of B (0.18 mg dm-3 - value available in the soil and 1.20 mg dm-3) and two water regimes (with and without water stress from the beginning of flowering). It can be concluded that the supply of Si and B can reduce the damage to sunflower caused by water stress. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-03-01 |
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=S1415-43662019000300175 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000300175 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-1929/agriambi.v23n3p175-182 |
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.23 n.3 2019 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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1750297686522724352 |