Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/22576 |
Resumo: | Heat stress during reproductive and grain filling phases adversely affects the growth of cereals through reduction in grain’s number and size. However, exogenous application of antioxidants, plant growth regulators and osmoprotectants may be helpful to minimize these heat induced yield losses in cereals. This two year study was conducted to evaluate the role of exogenous application of ascorbic acid (AsA), salicylic acid (SA) and hydrogen peroxide (H2O2) applied through seed priming or foliar spray on biochemical, physiological, morphological and yield related traits, grain yield and quality of late spring sown hybrid maize. The experiment was conducted in the spring season of 2007 and 2008. We observed that application of AsA, SA and H2O2 applied through seed priming or foliar spray improved the physiological, biochemical, morphological and yield related traits, grain yield and grain quality of late spring sown maize in both years. In both years, we observed higher superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activity in the plants where AsA, SA and H2O2were applied through seed priming or foliar spray than control. Membrane stability index (MSI), relative water contents (RWC), chlorophyll contents, grain yield and grain oil contents were also improved by exogenous application of AsA, SA and H2O2 in both years. Seed priming of AsA, SA and H2O2was equally effective as the foliar application. In conclusion, seed priming with AsA, SA and H2O2 may be opted to lessen the heat induced yield losses in late sown spring hybrid maize. Heat tolerance induced by ASA, SA and H2O2 may be attributed to increase in antioxidant activities and MSI which maintained RWC and chlorophyll contents in maize resulting in better grain yield in heat stress conditions. |
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Semina. Ciências Agrárias (Online) |
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Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditionsMelhoria das atividades antioxidantes e do rendimento do milho primaveril através da aplicação de sementes e aplicação foliar de reguladores de crescimento em condições de estresse térmicoMaizeHeat ToleranceAntioxidantsPlant Growth RegulatorsOsmoprotectants.MilhoTolerância ao calorAntioxidantesReguladores de crescimentoOsmoprotectores.Heat stress during reproductive and grain filling phases adversely affects the growth of cereals through reduction in grain’s number and size. However, exogenous application of antioxidants, plant growth regulators and osmoprotectants may be helpful to minimize these heat induced yield losses in cereals. This two year study was conducted to evaluate the role of exogenous application of ascorbic acid (AsA), salicylic acid (SA) and hydrogen peroxide (H2O2) applied through seed priming or foliar spray on biochemical, physiological, morphological and yield related traits, grain yield and quality of late spring sown hybrid maize. The experiment was conducted in the spring season of 2007 and 2008. We observed that application of AsA, SA and H2O2 applied through seed priming or foliar spray improved the physiological, biochemical, morphological and yield related traits, grain yield and grain quality of late spring sown maize in both years. In both years, we observed higher superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activity in the plants where AsA, SA and H2O2were applied through seed priming or foliar spray than control. Membrane stability index (MSI), relative water contents (RWC), chlorophyll contents, grain yield and grain oil contents were also improved by exogenous application of AsA, SA and H2O2 in both years. Seed priming of AsA, SA and H2O2was equally effective as the foliar application. In conclusion, seed priming with AsA, SA and H2O2 may be opted to lessen the heat induced yield losses in late sown spring hybrid maize. Heat tolerance induced by ASA, SA and H2O2 may be attributed to increase in antioxidant activities and MSI which maintained RWC and chlorophyll contents in maize resulting in better grain yield in heat stress conditions.O estresse térmico durante as fases reprodutiva e de enchimento de grãos afeta negativamente o crescimento de cereais com redução do número e do tamanho do grão. A aplicação exógena de antioxidantes, reguladores de crescimento vegetal e osmoprotetores, pode ser útil para minimizar essas perdas. O objetivo foi avaliar o efeito da aplicação exógena de ácido ascórbico (ASA), ácido salicílico (SA) e peróxido de hidrogênio (H2O2) aplicada através de sementes ou pulverização foliar na indução de tolerância ao estresse térmico em milho híbrido semeado no final da primavera. A aplicação de AsA, SA e H2O2 através de sementes ou pulverização foliar melhora a fisiologia, bioquímica, morfologia e traços associados ao rendimento e qualidade de de grãos de milho no cultivo de Primavera tardia em ambos os anos. Foi observada maior superóxido dismutase (SOD), catalase (CAT) e atividade de peroxidase (POD) em plantas onde AsA, SA e H2O2 foram aplicados via sementes ou pulverização foliar em relação ao controle. O índice de estabilidade de membrana (MSI), conteúdo relativo de água (RWC), conteúdo de clorofila, rendimento de grãos e teor de óleo de grãos também foram melhorados pela aplicação de AsA, exógena SA e H2O2 em ambos os anos. A aplicação via sementes de AsA, SA e H2O2 foi igualmente eficaz à aplicação foliar. A embebição de sementes com AsA, SA e H2O2 pode ser utilizado para diminuir as perdas de rendimento induzida pelo calor em milho híbrido semeado no final da primavera. A indução de tolerância ao calor pela ASA, SA e H2O2 pode ser atribuído ao aumento de atividades antioxidantes e a MSI que manteve o RWC e o conteúdo de clorofila resultando em melhor rendimento de grãos em condições de estresse de calor.UEL2017-03-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAppliedapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2257610.5433/1679-0359.2017v38n1p47Semina: Ciências Agrárias; Vol. 38 No. 1 (2017); 47-56Semina: Ciências Agrárias; v. 38 n. 1 (2017); 47-561679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/22576/20477http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessAhmad, IjazBasra, Shehzad Maqsood AhmedAkram, MuhammadWasaya, AllahAnsar, MuhammadHussain, SafdarIqbal, AsifHussain, Syed Azhar2022-11-29T13:59:29Zoai:ojs.pkp.sfu.ca:article/22576Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-11-29T13:59:29Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions Melhoria das atividades antioxidantes e do rendimento do milho primaveril através da aplicação de sementes e aplicação foliar de reguladores de crescimento em condições de estresse térmico |
title |
Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions |
spellingShingle |
Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions Ahmad, Ijaz Maize Heat Tolerance Antioxidants Plant Growth Regulators Osmoprotectants. Milho Tolerância ao calor Antioxidantes Reguladores de crescimento Osmoprotectores. |
title_short |
Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions |
title_full |
Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions |
title_fullStr |
Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions |
title_full_unstemmed |
Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions |
title_sort |
Improvement of antioxidant activities and yield of spring maize through seed priming and foliar application of plant growth regulators under heat stress conditions |
author |
Ahmad, Ijaz |
author_facet |
Ahmad, Ijaz Basra, Shehzad Maqsood Ahmed Akram, Muhammad Wasaya, Allah Ansar, Muhammad Hussain, Safdar Iqbal, Asif Hussain, Syed Azhar |
author_role |
author |
author2 |
Basra, Shehzad Maqsood Ahmed Akram, Muhammad Wasaya, Allah Ansar, Muhammad Hussain, Safdar Iqbal, Asif Hussain, Syed Azhar |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Ahmad, Ijaz Basra, Shehzad Maqsood Ahmed Akram, Muhammad Wasaya, Allah Ansar, Muhammad Hussain, Safdar Iqbal, Asif Hussain, Syed Azhar |
dc.subject.por.fl_str_mv |
Maize Heat Tolerance Antioxidants Plant Growth Regulators Osmoprotectants. Milho Tolerância ao calor Antioxidantes Reguladores de crescimento Osmoprotectores. |
topic |
Maize Heat Tolerance Antioxidants Plant Growth Regulators Osmoprotectants. Milho Tolerância ao calor Antioxidantes Reguladores de crescimento Osmoprotectores. |
description |
Heat stress during reproductive and grain filling phases adversely affects the growth of cereals through reduction in grain’s number and size. However, exogenous application of antioxidants, plant growth regulators and osmoprotectants may be helpful to minimize these heat induced yield losses in cereals. This two year study was conducted to evaluate the role of exogenous application of ascorbic acid (AsA), salicylic acid (SA) and hydrogen peroxide (H2O2) applied through seed priming or foliar spray on biochemical, physiological, morphological and yield related traits, grain yield and quality of late spring sown hybrid maize. The experiment was conducted in the spring season of 2007 and 2008. We observed that application of AsA, SA and H2O2 applied through seed priming or foliar spray improved the physiological, biochemical, morphological and yield related traits, grain yield and grain quality of late spring sown maize in both years. In both years, we observed higher superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activity in the plants where AsA, SA and H2O2were applied through seed priming or foliar spray than control. Membrane stability index (MSI), relative water contents (RWC), chlorophyll contents, grain yield and grain oil contents were also improved by exogenous application of AsA, SA and H2O2 in both years. Seed priming of AsA, SA and H2O2was equally effective as the foliar application. In conclusion, seed priming with AsA, SA and H2O2 may be opted to lessen the heat induced yield losses in late sown spring hybrid maize. Heat tolerance induced by ASA, SA and H2O2 may be attributed to increase in antioxidant activities and MSI which maintained RWC and chlorophyll contents in maize resulting in better grain yield in heat stress conditions. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-02 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Applied |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/22576 10.5433/1679-0359.2017v38n1p47 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/22576 |
identifier_str_mv |
10.5433/1679-0359.2017v38n1p47 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/22576/20477 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 38 No. 1 (2017); 47-56 Semina: Ciências Agrárias; v. 38 n. 1 (2017); 47-56 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306074488045568 |