Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L.
Autor(a) principal: | |
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Data de Publicação: | 1999 |
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/5258 |
Resumo: | The objective of this paper was to study the interspecific interference between two Amaranthus species __ A. viridis e A. hybridus __, the latter with two distinct biotypes (green and purple); both species ocurred in two localities. In the populations of each of the locations, some independent substitution trials were made in pots, and it could be concluded that the populations that germinate more readily are those which are superior in competition i.e., those that establish themselves and produce the largest number of seeds. There was a tendency for A. hybridus (green biotype) to dominate both A. hybridus (purple biotype) and A. viridis, and for A. hybridus (purple biotype) to dominate A. viridis. In mixed stands, there were cases where the species were competing for the same resources, cases where they were exploiting different environmental resources, and even cases of mutual antagonism. |
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Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L.Interferência interespecífica entre Amaranthus hybridus L. e Amaranthus viridis L.energy allocation; biomass allocation; weed; amaranth; substitution trialsalocação de energia; alocação de biomassa; planta infestante; amaranto; ensaios de substituiçãoThe objective of this paper was to study the interspecific interference between two Amaranthus species __ A. viridis e A. hybridus __, the latter with two distinct biotypes (green and purple); both species ocurred in two localities. In the populations of each of the locations, some independent substitution trials were made in pots, and it could be concluded that the populations that germinate more readily are those which are superior in competition i.e., those that establish themselves and produce the largest number of seeds. There was a tendency for A. hybridus (green biotype) to dominate both A. hybridus (purple biotype) and A. viridis, and for A. hybridus (purple biotype) to dominate A. viridis. In mixed stands, there were cases where the species were competing for the same resources, cases where they were exploiting different environmental resources, and even cases of mutual antagonism. O objetivo deste trabalho foi estudar a interferência interespecífica entre duas espécies de Amaranthus __ A. viridis e A. hybridus __, esta última com dois biótipos distintos (verde e roxo); ambas ocorriam associadas em dois locais. Nas populações de cada local foram feitos ensaios de substituição independentes, em vasos, nos quais observou-se que as populações que germinam mais prontamente são as que vencem em competição, ou seja, se estabelecem e produzem maior número de sementes. Houve tendência de A. hybridus (tipo verde) dominar tanto A. hybridus (tipo roxo) como A. viridis, e de A. hybridus (tipo roxo) dominar A. viridis. Em cultivo misto, houve casos em que as espécies estavam competindo pelos mesmos recursos, ou explorando recursos diferentes do ambiente, ou mesmo com antagonismo mútuo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMaluf, Angela Maria1999-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5258Pesquisa Agropecuaria Brasileira; v.34, n.5, maio 1999; 723-732Pesquisa Agropecuária Brasileira; v.34, n.5, maio 1999; 723-7321678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5258/2450info:eu-repo/semantics/openAccess2010-06-29T13:58:03Zoai:ojs.seer.sct.embrapa.br:article/5258Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-06-29T13:58:03Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L. Interferência interespecífica entre Amaranthus hybridus L. e Amaranthus viridis L. |
title |
Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L. |
spellingShingle |
Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L. Maluf, Angela Maria energy allocation; biomass allocation; weed; amaranth; substitution trials alocação de energia; alocação de biomassa; planta infestante; amaranto; ensaios de substituição |
title_short |
Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L. |
title_full |
Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L. |
title_fullStr |
Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L. |
title_full_unstemmed |
Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L. |
title_sort |
Interspecific interference between Amaranthus hybridus L. and Amaranthus viridis L. |
author |
Maluf, Angela Maria |
author_facet |
Maluf, Angela Maria |
author_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Maluf, Angela Maria |
dc.subject.por.fl_str_mv |
energy allocation; biomass allocation; weed; amaranth; substitution trials alocação de energia; alocação de biomassa; planta infestante; amaranto; ensaios de substituição |
topic |
energy allocation; biomass allocation; weed; amaranth; substitution trials alocação de energia; alocação de biomassa; planta infestante; amaranto; ensaios de substituição |
description |
The objective of this paper was to study the interspecific interference between two Amaranthus species __ A. viridis e A. hybridus __, the latter with two distinct biotypes (green and purple); both species ocurred in two localities. In the populations of each of the locations, some independent substitution trials were made in pots, and it could be concluded that the populations that germinate more readily are those which are superior in competition i.e., those that establish themselves and produce the largest number of seeds. There was a tendency for A. hybridus (green biotype) to dominate both A. hybridus (purple biotype) and A. viridis, and for A. hybridus (purple biotype) to dominate A. viridis. In mixed stands, there were cases where the species were competing for the same resources, cases where they were exploiting different environmental resources, and even cases of mutual antagonism. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-05-01 |
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/5258 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/5258 |
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/5258/2450 |
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.34, n.5, maio 1999; 723-732 Pesquisa Agropecuária Brasileira; v.34, n.5, maio 1999; 723-732 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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1793416663518937088 |