Growth components and zinc recovery efficiency of upland rice genotypes
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/7086 |
Resumo: | The objective of this work was to evaluate Zn use efficiency by upland rice genotypes. The experiment was carried out in a greenhouse, with ten upland rice genotypes grown on an Oxisol (Typic Hapludox) with no application, and with application of 10 mg kg-1 Zn, applied as zinc sulfate. Shoot dry weight, grain yield, Zn harvest index, Zn concentration in shoot and in grain were significantly influenced by soil Zn levels and genotypes. However, panicle number and grain harvest index were significantly affected only by genotype. Genotypes CNA8557, CNA8540 and IR42 produced higher grain yield than other genotypes. Genotypes showed significant variability in Zn recovery efficiency. On average, 13% of the applied Zn was recovered by upland rice genotypes. Genotypes with high Zn recovery efficiency could be used in breeding of Zn efficient upland rice cultivars. Higher level of soil Zn (10 mg kg-1) increased significantly the concentrations of plant Cu and Mn. However, Fe concentrations in plant (shoot and grain) were not influenced by soil Zn levels. |
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Growth components and zinc recovery efficiency of upland rice genotypesComponentes de crescimento e eficiência de recuperação de zinco de genótipos de arroz de terras altasOryza sativa; grain yield; grain harvest index; zinc harvest indexOryza sativa; rendimento de grãos; índice de colheita de grãos; índice de colheita de zincoThe objective of this work was to evaluate Zn use efficiency by upland rice genotypes. The experiment was carried out in a greenhouse, with ten upland rice genotypes grown on an Oxisol (Typic Hapludox) with no application, and with application of 10 mg kg-1 Zn, applied as zinc sulfate. Shoot dry weight, grain yield, Zn harvest index, Zn concentration in shoot and in grain were significantly influenced by soil Zn levels and genotypes. However, panicle number and grain harvest index were significantly affected only by genotype. Genotypes CNA8557, CNA8540 and IR42 produced higher grain yield than other genotypes. Genotypes showed significant variability in Zn recovery efficiency. On average, 13% of the applied Zn was recovered by upland rice genotypes. Genotypes with high Zn recovery efficiency could be used in breeding of Zn efficient upland rice cultivars. Higher level of soil Zn (10 mg kg-1) increased significantly the concentrations of plant Cu and Mn. However, Fe concentrations in plant (shoot and grain) were not influenced by soil Zn levels.O objetivo deste trabalho foi avaliar a eficiência no uso do zinco por genótipos de arroz. O experimento foi conduzido em casa de vegetação, utilizando-se dez genótipos de arroz de terras altas, cultivados num Latossolo Vermelho distrófico, com dois níveis de Zn: sem aplicação de Zn e com aplicação de 10 mg kg-1 de solo na forma de sulfato de zinco. A massa de matéria seca da parte aérea, produção de grãos, índice de colheita de Zn, concentração de Zn na parte aérea e grãos foram significativamente influenciados pelos níveis de Zn e genótipos. Porém, o número de panículas e o índice de colheita de grãos foram significativamente influenciados somente pelos genótipos. Os genótipos CNA8557, CNA8540 e IR42 foram os mais produtivos. Os genótipos mostraram variação significativa na recuperação de Zn. Em média, 13% do Zn aplicado foi recuperado pelos genótipos. Os genótipos com alta capacidade de recuperação de Zn podem ser utilizados no programa de melhoramento, para desenvolvimento de cultivares de arroz de terras altas eficientes no uso de Zn. A dose de 10 mg kg-1 aumentou a concentração de Cu e Mn na parte aérea e grãos, porém a concentração de Fe na parte aérea e nos grãos não foi influenciada pelos níveis de zinco.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFageria, Nand KumarBaligar, Virupax Chanabasappa2005-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7086Pesquisa Agropecuaria Brasileira; v.40, n.12, dez. 2005; 1211-1215Pesquisa Agropecuária Brasileira; v.40, n.12, dez. 2005; 1211-12151678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/7086/4134info:eu-repo/semantics/openAccess2014-09-19T16:20:08Zoai:ojs.seer.sct.embrapa.br:article/7086Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-19T16:20:08Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Growth components and zinc recovery efficiency of upland rice genotypes Componentes de crescimento e eficiência de recuperação de zinco de genótipos de arroz de terras altas |
title |
Growth components and zinc recovery efficiency of upland rice genotypes |
spellingShingle |
Growth components and zinc recovery efficiency of upland rice genotypes Fageria, Nand Kumar Oryza sativa; grain yield; grain harvest index; zinc harvest index Oryza sativa; rendimento de grãos; índice de colheita de grãos; índice de colheita de zinco |
title_short |
Growth components and zinc recovery efficiency of upland rice genotypes |
title_full |
Growth components and zinc recovery efficiency of upland rice genotypes |
title_fullStr |
Growth components and zinc recovery efficiency of upland rice genotypes |
title_full_unstemmed |
Growth components and zinc recovery efficiency of upland rice genotypes |
title_sort |
Growth components and zinc recovery efficiency of upland rice genotypes |
author |
Fageria, Nand Kumar |
author_facet |
Fageria, Nand Kumar Baligar, Virupax Chanabasappa |
author_role |
author |
author2 |
Baligar, Virupax Chanabasappa |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Fageria, Nand Kumar Baligar, Virupax Chanabasappa |
dc.subject.por.fl_str_mv |
Oryza sativa; grain yield; grain harvest index; zinc harvest index Oryza sativa; rendimento de grãos; índice de colheita de grãos; índice de colheita de zinco |
topic |
Oryza sativa; grain yield; grain harvest index; zinc harvest index Oryza sativa; rendimento de grãos; índice de colheita de grãos; índice de colheita de zinco |
description |
The objective of this work was to evaluate Zn use efficiency by upland rice genotypes. The experiment was carried out in a greenhouse, with ten upland rice genotypes grown on an Oxisol (Typic Hapludox) with no application, and with application of 10 mg kg-1 Zn, applied as zinc sulfate. Shoot dry weight, grain yield, Zn harvest index, Zn concentration in shoot and in grain were significantly influenced by soil Zn levels and genotypes. However, panicle number and grain harvest index were significantly affected only by genotype. Genotypes CNA8557, CNA8540 and IR42 produced higher grain yield than other genotypes. Genotypes showed significant variability in Zn recovery efficiency. On average, 13% of the applied Zn was recovered by upland rice genotypes. Genotypes with high Zn recovery efficiency could be used in breeding of Zn efficient upland rice cultivars. Higher level of soil Zn (10 mg kg-1) increased significantly the concentrations of plant Cu and Mn. However, Fe concentrations in plant (shoot and grain) were not influenced by soil Zn levels. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-12-01 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7086 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/7086 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7086/4134 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.40, n.12, dez. 2005; 1211-1215 Pesquisa Agropecuária Brasileira; v.40, n.12, dez. 2005; 1211-1215 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416696860508160 |