Relative competitive ability of crabgrass in coexistence with flooded rice and soybean

Detalhes bibliográficos
Autor(a) principal: Agostinetto, Dirceu
Data de Publicação: 2013
Outros Autores: Fontana, Lisiane Camponogara, Vargas, Leandro, Markus, Catarine, de Oliveira, Ezequiel
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/16228
Resumo: The objective of this work was to compare the relative competitive ability of crabgrass with flooded rice and soybean crops. Five experiments were performed in the 2009/2010 and 2010/2011 seasons, in a completely randomized design with four replicates. The treatments consisted of plant proportions of crabgrass, flooded rice or soybean (at 100:0, 75:25, 50:50, 25:75 and 0:100%). Leaf area and shoot dry weight were evaluated at 45 days after emergence. The competition between crabgrass and flooded rice or soybean occurs for the same environment resources. Crabgrass plants have a lower individual competitive ability than flooded rice and soybean, when they occur in the same proportion of plants. When flooded rice or soybean are associated with crabgrass, the intraspecific competition dominates, while for the weed the interspecific competition prevails as the most harmful.
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spelling Relative competitive ability of crabgrass in coexistence with flooded rice and soybeanHabilidade competitiva relativa de milhã em convivência com arroz irrigado e sojaDigitaria ciliaris; Glycine max; Oryza sativa; interferenceDigitaria ciliaris; Glycine max; Oryza sativa; interferênciaThe objective of this work was to compare the relative competitive ability of crabgrass with flooded rice and soybean crops. Five experiments were performed in the 2009/2010 and 2010/2011 seasons, in a completely randomized design with four replicates. The treatments consisted of plant proportions of crabgrass, flooded rice or soybean (at 100:0, 75:25, 50:50, 25:75 and 0:100%). Leaf area and shoot dry weight were evaluated at 45 days after emergence. The competition between crabgrass and flooded rice or soybean occurs for the same environment resources. Crabgrass plants have a lower individual competitive ability than flooded rice and soybean, when they occur in the same proportion of plants. When flooded rice or soybean are associated with crabgrass, the intraspecific competition dominates, while for the weed the interspecific competition prevails as the most harmful.O objetivo deste trabalho foi comparar a habilidade competitiva relativa de milhã com as culturas de arroz irrigado e de soja. Realizaram-se cinco experimentos, nas safras de 2009/2010 e 2010/2011, em delineamento inteiramente casualizado, com quatro repetições. Os tratamentos consistiram de proporções de plantas de milhã e arroz irrigado ou soja (100:0, 75:25, 50:50, 25:75 e 0:100%). A área foliar e a massa de matéria seca da parte aérea foram avaliadas aos 45 dias após a emergência. A competição entre milhã e arroz irrigado ou soja ocorre pelos mesmos recursos do ambiente. Plantas de milhã apresentam menor habilidade competitiva por indivíduo do que o arroz irrigado e a soja, quando ocorrem na mesma proporção de plantas. Quando as culturas do arroz irrigado ou da soja estão associadas ao milhã, a competição intraespecífica predomina, enquanto, para a planta daninha, prevalece a competição interespecífica como a mais prejudicial.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraAgostinetto, DirceuFontana, Lisiane CamponogaraVargas, LeandroMarkus, Catarinede Oliveira, Ezequiel2013-12-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16228Pesquisa Agropecuaria Brasileira; v.48, n.10, out. 2013; 1315-1322Pesquisa Agropecuária Brasileira; v.48, n.10, out. 2013; 1315-13221678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16228/12443https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/16228/10160info:eu-repo/semantics/openAccess2014-03-13T19:14:53Zoai:ojs.seer.sct.embrapa.br:article/16228Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-03-13T19:14:53Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Relative competitive ability of crabgrass in coexistence with flooded rice and soybean
Habilidade competitiva relativa de milhã em convivência com arroz irrigado e soja
title Relative competitive ability of crabgrass in coexistence with flooded rice and soybean
spellingShingle Relative competitive ability of crabgrass in coexistence with flooded rice and soybean
Agostinetto, Dirceu
Digitaria ciliaris; Glycine max; Oryza sativa; interference
Digitaria ciliaris; Glycine max; Oryza sativa; interferência
title_short Relative competitive ability of crabgrass in coexistence with flooded rice and soybean
title_full Relative competitive ability of crabgrass in coexistence with flooded rice and soybean
title_fullStr Relative competitive ability of crabgrass in coexistence with flooded rice and soybean
title_full_unstemmed Relative competitive ability of crabgrass in coexistence with flooded rice and soybean
title_sort Relative competitive ability of crabgrass in coexistence with flooded rice and soybean
author Agostinetto, Dirceu
author_facet Agostinetto, Dirceu
Fontana, Lisiane Camponogara
Vargas, Leandro
Markus, Catarine
de Oliveira, Ezequiel
author_role author
author2 Fontana, Lisiane Camponogara
Vargas, Leandro
Markus, Catarine
de Oliveira, Ezequiel
author2_role author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Agostinetto, Dirceu
Fontana, Lisiane Camponogara
Vargas, Leandro
Markus, Catarine
de Oliveira, Ezequiel
dc.subject.por.fl_str_mv Digitaria ciliaris; Glycine max; Oryza sativa; interference
Digitaria ciliaris; Glycine max; Oryza sativa; interferência
topic Digitaria ciliaris; Glycine max; Oryza sativa; interference
Digitaria ciliaris; Glycine max; Oryza sativa; interferência
description The objective of this work was to compare the relative competitive ability of crabgrass with flooded rice and soybean crops. Five experiments were performed in the 2009/2010 and 2010/2011 seasons, in a completely randomized design with four replicates. The treatments consisted of plant proportions of crabgrass, flooded rice or soybean (at 100:0, 75:25, 50:50, 25:75 and 0:100%). Leaf area and shoot dry weight were evaluated at 45 days after emergence. The competition between crabgrass and flooded rice or soybean occurs for the same environment resources. Crabgrass plants have a lower individual competitive ability than flooded rice and soybean, when they occur in the same proportion of plants. When flooded rice or soybean are associated with crabgrass, the intraspecific competition dominates, while for the weed the interspecific competition prevails as the most harmful.
publishDate 2013
dc.date.none.fl_str_mv 2013-12-20
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/16228
url https://seer.sct.embrapa.br/index.php/pab/article/view/16228
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/16228/12443
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/16228/10160
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.48, n.10, out. 2013; 1315-1322
Pesquisa Agropecuária Brasileira; v.48, n.10, out. 2013; 1315-1322
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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