Deposição de sílica e teor de nitrogênio e silício em arroz
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5433/1679-0359.2013v34n4p1653 http://hdl.handle.net/11449/75871 |
Resumo: | The nitrogen fertilization is an important practice to reach high productivity, however, nitrogen high level can cause lodging and make the plants more sensitive to disease. Numerous studies has demonstrate that a lot of grasses accumulate silicon at its tissues, and the biggest part of this element is deposited on the leaf, that would work like a mechanical barrier to diseases come in. However, high levels of nitrogen can reduce the silica deposition at the plants. The objective of this study was to evaluate silicon and nitrogen content in shoot and silica deposition in upland rice leaf as a result of Si and N levels. The experimental design used was completely randomized in factorial schema 3 x 2 with five replications. The treatments consisted from levels of N (5, 75 and 150 mg dm-3 of soil) in urea form and two levels of SiO2 (0 e 400 mg dm-3) in calcium silicate form (Wollastonita). The increased of urea fertilization reduced the silicon content of rice plants and the silica deposition at the external cells wall the epidermal rice leafs. |
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Deposição de sílica e teor de nitrogênio e silício em arrozSilica deposition and rate the nitrogen is silicon in riceFertilizationOryza sativaVegetation anatomyThe nitrogen fertilization is an important practice to reach high productivity, however, nitrogen high level can cause lodging and make the plants more sensitive to disease. Numerous studies has demonstrate that a lot of grasses accumulate silicon at its tissues, and the biggest part of this element is deposited on the leaf, that would work like a mechanical barrier to diseases come in. However, high levels of nitrogen can reduce the silica deposition at the plants. The objective of this study was to evaluate silicon and nitrogen content in shoot and silica deposition in upland rice leaf as a result of Si and N levels. The experimental design used was completely randomized in factorial schema 3 x 2 with five replications. The treatments consisted from levels of N (5, 75 and 150 mg dm-3 of soil) in urea form and two levels of SiO2 (0 e 400 mg dm-3) in calcium silicate form (Wollastonita). The increased of urea fertilization reduced the silicon content of rice plants and the silica deposition at the external cells wall the epidermal rice leafs.Universidade Federal da Grande Dourados Faculdade de Ciências Agrárias UFGD, Dourados, MSDepto de Produção Vegetal Universidade Estadual Paulista UNESP, Botucatu, SPDepto de Ciências Ambientais UNESP, Botucatu, SPDepto de Botânica UNESP Instituto de Biociências, Botucatu, SPDepto de Produção Vegetal Universidade Estadual Paulista UNESP, Botucatu, SPDepto de Ciências Ambientais UNESP, Botucatu, SPDepto de Botânica UNESP Instituto de Biociências, Botucatu, SPUniversidade Federal da Grande Dourados (UFGD)Universidade Estadual Paulista (Unesp)Mauad, MunirCrusciol, Carlos Alexandre Costa [UNESP]Grassi Filho, Hélio [UNESP]Machado, Silvia Rodrigues [UNESP]2014-05-27T11:29:54Z2014-05-27T11:29:54Z2013-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1653-1662application/pdfhttp://dx.doi.org/10.5433/1679-0359.2013v34n4p1653Semina:Ciencias Agrarias, v. 34, n. 4, p. 1653-1662, 2013.1676-546X1679-0359http://hdl.handle.net/11449/7587110.5433/1679-0359.2013v34n4p1653WOS:0003282699000172-s2.0-848851652212-s2.0-84885165221.pdf2653496390637757Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporSemina: Ciências Agrárias0.3490,320info:eu-repo/semantics/openAccess2024-04-30T15:59:03Zoai:repositorio.unesp.br:11449/75871Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:11:52.306227Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Deposição de sílica e teor de nitrogênio e silício em arroz Silica deposition and rate the nitrogen is silicon in rice |
title |
Deposição de sílica e teor de nitrogênio e silício em arroz |
spellingShingle |
Deposição de sílica e teor de nitrogênio e silício em arroz Mauad, Munir Fertilization Oryza sativa Vegetation anatomy |
title_short |
Deposição de sílica e teor de nitrogênio e silício em arroz |
title_full |
Deposição de sílica e teor de nitrogênio e silício em arroz |
title_fullStr |
Deposição de sílica e teor de nitrogênio e silício em arroz |
title_full_unstemmed |
Deposição de sílica e teor de nitrogênio e silício em arroz |
title_sort |
Deposição de sílica e teor de nitrogênio e silício em arroz |
author |
Mauad, Munir |
author_facet |
Mauad, Munir Crusciol, Carlos Alexandre Costa [UNESP] Grassi Filho, Hélio [UNESP] Machado, Silvia Rodrigues [UNESP] |
author_role |
author |
author2 |
Crusciol, Carlos Alexandre Costa [UNESP] Grassi Filho, Hélio [UNESP] Machado, Silvia Rodrigues [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal da Grande Dourados (UFGD) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Mauad, Munir Crusciol, Carlos Alexandre Costa [UNESP] Grassi Filho, Hélio [UNESP] Machado, Silvia Rodrigues [UNESP] |
dc.subject.por.fl_str_mv |
Fertilization Oryza sativa Vegetation anatomy |
topic |
Fertilization Oryza sativa Vegetation anatomy |
description |
The nitrogen fertilization is an important practice to reach high productivity, however, nitrogen high level can cause lodging and make the plants more sensitive to disease. Numerous studies has demonstrate that a lot of grasses accumulate silicon at its tissues, and the biggest part of this element is deposited on the leaf, that would work like a mechanical barrier to diseases come in. However, high levels of nitrogen can reduce the silica deposition at the plants. The objective of this study was to evaluate silicon and nitrogen content in shoot and silica deposition in upland rice leaf as a result of Si and N levels. The experimental design used was completely randomized in factorial schema 3 x 2 with five replications. The treatments consisted from levels of N (5, 75 and 150 mg dm-3 of soil) in urea form and two levels of SiO2 (0 e 400 mg dm-3) in calcium silicate form (Wollastonita). The increased of urea fertilization reduced the silicon content of rice plants and the silica deposition at the external cells wall the epidermal rice leafs. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-07-01 2014-05-27T11:29:54Z 2014-05-27T11:29:54Z |
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/10.5433/1679-0359.2013v34n4p1653 Semina:Ciencias Agrarias, v. 34, n. 4, p. 1653-1662, 2013. 1676-546X 1679-0359 http://hdl.handle.net/11449/75871 10.5433/1679-0359.2013v34n4p1653 WOS:000328269900017 2-s2.0-84885165221 2-s2.0-84885165221.pdf 2653496390637757 |
url |
http://dx.doi.org/10.5433/1679-0359.2013v34n4p1653 http://hdl.handle.net/11449/75871 |
identifier_str_mv |
Semina:Ciencias Agrarias, v. 34, n. 4, p. 1653-1662, 2013. 1676-546X 1679-0359 10.5433/1679-0359.2013v34n4p1653 WOS:000328269900017 2-s2.0-84885165221 2-s2.0-84885165221.pdf 2653496390637757 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Semina: Ciências Agrárias 0.349 0,320 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1653-1662 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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1808129403623833600 |