Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência e Agrotecnologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100225 |
Resumo: | ABSTRACT Drought is the most harmful environmental factor crop productivity. Some chemicals are used in agriculture to mitigate the damage from this stress on plants. Therefore, we examined whether the spraying of zinc sulfate (ZS), potassium phosphite (KPhi) and the hydrogen sulfide (H2S) donor sodium hydrosulfide (NaHS) would mitigate the deleterious effects of water deficit on sunflower plants by analyzing physiological and biometric characteristics. The experiment was carried out in a greenhouse using a randomized block design with five replications. The treatments were arranged in a 4 x 2 factorial scheme: [Factor A (Alleviators)] - spraying of KPhi (0.5 L ha-1), ZS (3.2 kg ha-1), NaHS (1.2 g ha-1), and water; [Factor B (substrate humidity, SH)] - 100% (well irrigated) and 30% (water deficit, WD) of field capacity. Under WD conditions, alleviators led to the maintenance of higher values of water potential (ΨW), a lower content of leaf malonaldehyde (MDA), and increased activity of the antioxidant enzyme peroxidase (POX), except for ZS. However, leaf osmotic potential, proline concentration, variables related to gas exchange and chlorophyll a fluorescence, and biometric characteristics differed only according to the SH factor. The results of ΨW and MDA for sunflower plants under WD are indicative of the mitigating capacity of ZS, KPhi, and H2S. Thus, the spraying of these compounds on sunflower plants mitigates the effects of WD, acting specifically in physiological processes related to antioxidant responses and in the maintenance of water in leaf tissues. |
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Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plantsPhotosynthesiswater deficitmalonaldehydeleaf water potentialmitigating substanceABSTRACT Drought is the most harmful environmental factor crop productivity. Some chemicals are used in agriculture to mitigate the damage from this stress on plants. Therefore, we examined whether the spraying of zinc sulfate (ZS), potassium phosphite (KPhi) and the hydrogen sulfide (H2S) donor sodium hydrosulfide (NaHS) would mitigate the deleterious effects of water deficit on sunflower plants by analyzing physiological and biometric characteristics. The experiment was carried out in a greenhouse using a randomized block design with five replications. The treatments were arranged in a 4 x 2 factorial scheme: [Factor A (Alleviators)] - spraying of KPhi (0.5 L ha-1), ZS (3.2 kg ha-1), NaHS (1.2 g ha-1), and water; [Factor B (substrate humidity, SH)] - 100% (well irrigated) and 30% (water deficit, WD) of field capacity. Under WD conditions, alleviators led to the maintenance of higher values of water potential (ΨW), a lower content of leaf malonaldehyde (MDA), and increased activity of the antioxidant enzyme peroxidase (POX), except for ZS. However, leaf osmotic potential, proline concentration, variables related to gas exchange and chlorophyll a fluorescence, and biometric characteristics differed only according to the SH factor. The results of ΨW and MDA for sunflower plants under WD are indicative of the mitigating capacity of ZS, KPhi, and H2S. Thus, the spraying of these compounds on sunflower plants mitigates the effects of WD, acting specifically in physiological processes related to antioxidant responses and in the maintenance of water in leaf tissues.Editora da UFLA2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100225Ciência e Agrotecnologia v.44 2020reponame:Ciência e Agrotecnologia (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLA10.1590/1413-7054202044006320info:eu-repo/semantics/openAccessAlmeida,Gabriel MartinsSilva,Adinan Alves daBatista,Priscila FerreiraMoura,Luciana Minervina de FreitasVital,Roberto GomesCosta,Alan Carloseng2020-08-25T00:00:00Zoai:scielo:S1413-70542020000100225Revistahttp://www.scielo.br/cagroPUBhttps://old.scielo.br/oai/scielo-oai.php||renpaiva@dbi.ufla.br|| editora@editora.ufla.br1981-18291413-7054opendoar:2020-08-25T00:00Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants |
title |
Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants |
spellingShingle |
Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants Almeida,Gabriel Martins Photosynthesis water deficit malonaldehyde leaf water potential mitigating substance |
title_short |
Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants |
title_full |
Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants |
title_fullStr |
Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants |
title_full_unstemmed |
Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants |
title_sort |
Hydrogen sulfide, potassium phosphite and zinc sulfate as alleviators of drought stress in sunflower plants |
author |
Almeida,Gabriel Martins |
author_facet |
Almeida,Gabriel Martins Silva,Adinan Alves da Batista,Priscila Ferreira Moura,Luciana Minervina de Freitas Vital,Roberto Gomes Costa,Alan Carlos |
author_role |
author |
author2 |
Silva,Adinan Alves da Batista,Priscila Ferreira Moura,Luciana Minervina de Freitas Vital,Roberto Gomes Costa,Alan Carlos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Almeida,Gabriel Martins Silva,Adinan Alves da Batista,Priscila Ferreira Moura,Luciana Minervina de Freitas Vital,Roberto Gomes Costa,Alan Carlos |
dc.subject.por.fl_str_mv |
Photosynthesis water deficit malonaldehyde leaf water potential mitigating substance |
topic |
Photosynthesis water deficit malonaldehyde leaf water potential mitigating substance |
description |
ABSTRACT Drought is the most harmful environmental factor crop productivity. Some chemicals are used in agriculture to mitigate the damage from this stress on plants. Therefore, we examined whether the spraying of zinc sulfate (ZS), potassium phosphite (KPhi) and the hydrogen sulfide (H2S) donor sodium hydrosulfide (NaHS) would mitigate the deleterious effects of water deficit on sunflower plants by analyzing physiological and biometric characteristics. The experiment was carried out in a greenhouse using a randomized block design with five replications. The treatments were arranged in a 4 x 2 factorial scheme: [Factor A (Alleviators)] - spraying of KPhi (0.5 L ha-1), ZS (3.2 kg ha-1), NaHS (1.2 g ha-1), and water; [Factor B (substrate humidity, SH)] - 100% (well irrigated) and 30% (water deficit, WD) of field capacity. Under WD conditions, alleviators led to the maintenance of higher values of water potential (ΨW), a lower content of leaf malonaldehyde (MDA), and increased activity of the antioxidant enzyme peroxidase (POX), except for ZS. However, leaf osmotic potential, proline concentration, variables related to gas exchange and chlorophyll a fluorescence, and biometric characteristics differed only according to the SH factor. The results of ΨW and MDA for sunflower plants under WD are indicative of the mitigating capacity of ZS, KPhi, and H2S. Thus, the spraying of these compounds on sunflower plants mitigates the effects of WD, acting specifically in physiological processes related to antioxidant responses and in the maintenance of water in leaf tissues. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S1413-70542020000100225 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100225 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1413-7054202044006320 |
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 |
Editora da UFLA |
publisher.none.fl_str_mv |
Editora da UFLA |
dc.source.none.fl_str_mv |
Ciência e Agrotecnologia v.44 2020 reponame:Ciência e Agrotecnologia (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Ciência e Agrotecnologia (Online) |
collection |
Ciência e Agrotecnologia (Online) |
repository.name.fl_str_mv |
Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
||renpaiva@dbi.ufla.br|| editora@editora.ufla.br |
_version_ |
1750226496420577280 |