Dry matter accumulation during the grain-filling period in three maize hybrids
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/14724 |
Resumo: | An experiment was carried out at Guaíba, RS, Brazil, during the agricultural year of 1977/78 to determine the dry matter accumulation in the leaves, ear leaves, stalks, and ears of three maize (Zea mays L.) hybrids (Agroceres 28, Pioneer X 307 and SAVE 231). All of the hybrids showed the same behaviour, almost duplicating the dry matter quantity in that period. The dry matter was accumulated in the stalk and in the ear husk during the two first weeks and, later, mainly in the ear. Decreases in the dry matter of the aerial parts occurred between the grain-filling period and the physiological maturation as a consequence of the weight decrease in the stalks and leaves. |
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Dry matter accumulation during the grain-filling period in three maize hybridsAcúmulo de matéria seca em três híbridos de milho no período de formação dos grãosZea mays L.; grain-filling; maturation; source; sink; limiting factorsZea mays L.; espigamento; maturação; fonte; demanda; fatores limitantesAn experiment was carried out at Guaíba, RS, Brazil, during the agricultural year of 1977/78 to determine the dry matter accumulation in the leaves, ear leaves, stalks, and ears of three maize (Zea mays L.) hybrids (Agroceres 28, Pioneer X 307 and SAVE 231). All of the hybrids showed the same behaviour, almost duplicating the dry matter quantity in that period. The dry matter was accumulated in the stalk and in the ear husk during the two first weeks and, later, mainly in the ear. Decreases in the dry matter of the aerial parts occurred between the grain-filling period and the physiological maturation as a consequence of the weight decrease in the stalks and leaves.Instalou-se, no município de Guaíba, RS, no ano agrícola 77/78, um ensaio onde se determinou o acúmulo de matéria seca nas folhas, na palha da espiga, no colmo e na espiga de três híbridos de milho (Zea mays, L.): Agroceres 28, Pioneer X 307 e SAVE 231. Todos os híbridos apresentaram o mesmo comportamento, quase duplicando a quantia de matéria seca neste período. A matéria seca produzida se acumulou durante as duas primeiras semanas no colmo e palha de espiga e, posteriormente, de modo particular na espiga. Ocorreram decréscimos na matéria seca das partes vegetativas, no período entre o espigamento e a maturação fisiológica, em decorrência de diminuições verificadas principalmente no peso seco do colmo e das folhas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraRamos, Levi R. M.Mundstock, Claúdio M.2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/14724Pesquisa Agropecuaria Brasileira; v.21, n.3, mar. 1986; 265-270Pesquisa Agropecuária Brasileira; v.21, n.3, mar. 1986; 265-2701678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/14724/8406info:eu-repo/semantics/openAccess2014-10-17T18:47:54Zoai:ojs.seer.sct.embrapa.br:article/14724Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-10-17T18:47:54Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Dry matter accumulation during the grain-filling period in three maize hybrids Acúmulo de matéria seca em três híbridos de milho no período de formação dos grãos |
title |
Dry matter accumulation during the grain-filling period in three maize hybrids |
spellingShingle |
Dry matter accumulation during the grain-filling period in three maize hybrids Ramos, Levi R. M. Zea mays L.; grain-filling; maturation; source; sink; limiting factors Zea mays L.; espigamento; maturação; fonte; demanda; fatores limitantes |
title_short |
Dry matter accumulation during the grain-filling period in three maize hybrids |
title_full |
Dry matter accumulation during the grain-filling period in three maize hybrids |
title_fullStr |
Dry matter accumulation during the grain-filling period in three maize hybrids |
title_full_unstemmed |
Dry matter accumulation during the grain-filling period in three maize hybrids |
title_sort |
Dry matter accumulation during the grain-filling period in three maize hybrids |
author |
Ramos, Levi R. M. |
author_facet |
Ramos, Levi R. M. Mundstock, Claúdio M. |
author_role |
author |
author2 |
Mundstock, Claúdio M. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Ramos, Levi R. M. Mundstock, Claúdio M. |
dc.subject.por.fl_str_mv |
Zea mays L.; grain-filling; maturation; source; sink; limiting factors Zea mays L.; espigamento; maturação; fonte; demanda; fatores limitantes |
topic |
Zea mays L.; grain-filling; maturation; source; sink; limiting factors Zea mays L.; espigamento; maturação; fonte; demanda; fatores limitantes |
description |
An experiment was carried out at Guaíba, RS, Brazil, during the agricultural year of 1977/78 to determine the dry matter accumulation in the leaves, ear leaves, stalks, and ears of three maize (Zea mays L.) hybrids (Agroceres 28, Pioneer X 307 and SAVE 231). All of the hybrids showed the same behaviour, almost duplicating the dry matter quantity in that period. The dry matter was accumulated in the stalk and in the ear husk during the two first weeks and, later, mainly in the ear. Decreases in the dry matter of the aerial parts occurred between the grain-filling period and the physiological maturation as a consequence of the weight decrease in the stalks and leaves. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-17 |
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/14724 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/14724 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/14724/8406 |
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.21, n.3, mar. 1986; 265-270 Pesquisa Agropecuária Brasileira; v.21, n.3, mar. 1986; 265-270 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 |
_version_ |
1793416691710951424 |