Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5935/1806-6690.20160064 http://hdl.handle.net/11449/172887 |
Resumo: | Silicon (Si) has beneficial effects on many crops, mainly under biotic and abiotic stress. Silicon can affect biochemical, physiological, and photosynthetic processes and, consequently, reduce drought stress. However, the effects of Si on rice (Oryza sativa L.) plants under drought stress are not well known. The objective of this study was to evaluate the effects of supplemental Si on proline content and peroxidase activity in upland rice plants in the presence and absence of drought stress. The experiment was conducted under greenhouse conditions and was arranged in completely randomized blocks in a 2 × 2 × 2 factorial scheme. Treatments comprised combinations of (1) presence or absence of Si supply (0 or 350 kg ha-1 of Si), (2) presence or absence of a water deficit (??0.050 MPa or ??0.025 MPa soil water potential values, respectively), and (3) two upland rice cultivars: Caiapo (traditional type) and Maravilha (modern type), with eight replications. Under water stress conditions, silicon fertilization reduced the proline content in the vegetative and reproductive phases of upland rice plants and increased peroxidase activity in the plants' reproductive phase, which could be indicative of stress tolerance. |
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Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1EnzymeHydric deficiencyOryza sativaPeroxidaseProlineSilicon (Si) has beneficial effects on many crops, mainly under biotic and abiotic stress. Silicon can affect biochemical, physiological, and photosynthetic processes and, consequently, reduce drought stress. However, the effects of Si on rice (Oryza sativa L.) plants under drought stress are not well known. The objective of this study was to evaluate the effects of supplemental Si on proline content and peroxidase activity in upland rice plants in the presence and absence of drought stress. The experiment was conducted under greenhouse conditions and was arranged in completely randomized blocks in a 2 × 2 × 2 factorial scheme. Treatments comprised combinations of (1) presence or absence of Si supply (0 or 350 kg ha-1 of Si), (2) presence or absence of a water deficit (??0.050 MPa or ??0.025 MPa soil water potential values, respectively), and (3) two upland rice cultivars: Caiapo (traditional type) and Maravilha (modern type), with eight replications. Under water stress conditions, silicon fertilization reduced the proline content in the vegetative and reproductive phases of upland rice plants and increased peroxidase activity in the plants' reproductive phase, which could be indicative of stress tolerance.Faculdade de Ciências Agrárias Universidade Federal da Grande DouradosDepartamento de Produão Vegetal Faculdade Ciências Agronômicas Fazenda Lageado Universidade Estadual Paulista Júlio de Mesquita Filho/UNESP, Campus BotucatuEmbrapa Arroz e Feijão, Rodovia GO-462, km 12 Rural, Caixa Postal 179Departamento de Solos e Recursos Ambientais Faculdade de Ciências Agronômicas Fazenda Lageado Universidade Estadual Paulista Júlio de Mesquita Filho/UNESP, Campus BotucatuDepartamento de Química Instituto de Biociências Universidade Estadual Paulista Júlio de Mesquita Filho/UNESP, Campus BotucatuDepartamento de Produão Vegetal Faculdade Ciências Agronômicas Fazenda Lageado Universidade Estadual Paulista Júlio de Mesquita Filho/UNESP, Campus BotucatuDepartamento de Solos e Recursos Ambientais Faculdade de Ciências Agronômicas Fazenda Lageado Universidade Estadual Paulista Júlio de Mesquita Filho/UNESP, Campus BotucatuDepartamento de Química Instituto de Biociências Universidade Estadual Paulista Júlio de Mesquita Filho/UNESP, Campus BotucatuUniversidade Federal da Grande DouradosUniversidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Mauad, MunirCosta Crusciol, Carlos Alexandre [UNESP]Nascente, Adriano StephanFilho, Hélio Grassi [UNESP]Pereira Lima, Giuseppina Pace [UNESP]2018-12-11T17:02:35Z2018-12-11T17:02:35Z2016-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article532-539application/pdfhttp://dx.doi.org/10.5935/1806-6690.20160064Revista Ciencia Agronomica, v. 47, n. 3, p. 532-539, 2016.1806-66900045-6888http://hdl.handle.net/11449/17288710.5935/1806-6690.20160064S1806-669020160003005322-s2.0-84964681379S1806-66902016000300532.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Ciencia Agronomica0,498info:eu-repo/semantics/openAccess2024-04-30T19:29:13Zoai:repositorio.unesp.br:11449/172887Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-30T19:29:13Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1 |
title |
Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1 |
spellingShingle |
Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1 Mauad, Munir Enzyme Hydric deficiency Oryza sativa Peroxidase Proline |
title_short |
Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1 |
title_full |
Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1 |
title_fullStr |
Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1 |
title_full_unstemmed |
Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1 |
title_sort |
Effects of silicon and drought stress on biochemical characteristics of leaves of upland rice cultivars1 |
author |
Mauad, Munir |
author_facet |
Mauad, Munir Costa Crusciol, Carlos Alexandre [UNESP] Nascente, Adriano Stephan Filho, Hélio Grassi [UNESP] Pereira Lima, Giuseppina Pace [UNESP] |
author_role |
author |
author2 |
Costa Crusciol, Carlos Alexandre [UNESP] Nascente, Adriano Stephan Filho, Hélio Grassi [UNESP] Pereira Lima, Giuseppina Pace [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal da Grande Dourados Universidade Estadual Paulista (Unesp) Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) |
dc.contributor.author.fl_str_mv |
Mauad, Munir Costa Crusciol, Carlos Alexandre [UNESP] Nascente, Adriano Stephan Filho, Hélio Grassi [UNESP] Pereira Lima, Giuseppina Pace [UNESP] |
dc.subject.por.fl_str_mv |
Enzyme Hydric deficiency Oryza sativa Peroxidase Proline |
topic |
Enzyme Hydric deficiency Oryza sativa Peroxidase Proline |
description |
Silicon (Si) has beneficial effects on many crops, mainly under biotic and abiotic stress. Silicon can affect biochemical, physiological, and photosynthetic processes and, consequently, reduce drought stress. However, the effects of Si on rice (Oryza sativa L.) plants under drought stress are not well known. The objective of this study was to evaluate the effects of supplemental Si on proline content and peroxidase activity in upland rice plants in the presence and absence of drought stress. The experiment was conducted under greenhouse conditions and was arranged in completely randomized blocks in a 2 × 2 × 2 factorial scheme. Treatments comprised combinations of (1) presence or absence of Si supply (0 or 350 kg ha-1 of Si), (2) presence or absence of a water deficit (??0.050 MPa or ??0.025 MPa soil water potential values, respectively), and (3) two upland rice cultivars: Caiapo (traditional type) and Maravilha (modern type), with eight replications. Under water stress conditions, silicon fertilization reduced the proline content in the vegetative and reproductive phases of upland rice plants and increased peroxidase activity in the plants' reproductive phase, which could be indicative of stress tolerance. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-07-01 2018-12-11T17:02:35Z 2018-12-11T17:02:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.5935/1806-6690.20160064 Revista Ciencia Agronomica, v. 47, n. 3, p. 532-539, 2016. 1806-6690 0045-6888 http://hdl.handle.net/11449/172887 10.5935/1806-6690.20160064 S1806-66902016000300532 2-s2.0-84964681379 S1806-66902016000300532.pdf |
url |
http://dx.doi.org/10.5935/1806-6690.20160064 http://hdl.handle.net/11449/172887 |
identifier_str_mv |
Revista Ciencia Agronomica, v. 47, n. 3, p. 532-539, 2016. 1806-6690 0045-6888 10.5935/1806-6690.20160064 S1806-66902016000300532 2-s2.0-84964681379 S1806-66902016000300532.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Ciencia Agronomica 0,498 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
532-539 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1803047045197463552 |