Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino

Detalhes bibliográficos
Autor(a) principal: Giancotti, P. R.F. [UNESP]
Data de Publicação: 2017
Outros Autores: Moro, M. S. [UNESP], Nepomuceno, M. P. [UNESP], Barroso, A. A.M. [UNESP], Martins, P. F.R.B. [UNESP], Alves, P. L.C.A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0100-83582017350100051
http://hdl.handle.net/11449/170111
Resumo: This research was carried out to evaluate the interference periods and phytosociological indexes of the weed community on sweet sorghum, hybrid CVSW 80007, cultivated for two seasons in a year. The treatments were based on an increased duration of weed presence and weed absence after sowing (0, 4, 7, 14, 21, 28, 35, 42, 56 and 68 days after crop emergence for the summer season and 0, 4, 7, 14, 21, 28, 35, 42, 49, 56, 63 and 100 days for the fall season). The weed community was evaluated based on the number of weeds and the dry mass of each weed population in each period of weed control in the summer season and each period of no weed control and weed control in the autumn season. These data were used to determine the relative indexes of density, dominance and importance, and the weed community indexes of diversity and equitability. The main weeds comprising the community were Cyperus rotundus, Alternanthera tenella, Indigofera hirsuta, Amaranthus sp., Digitaria nuda, and Portulaca oleracea. The weed density was found to be the primary factor for the importance of weeds in the community, once their development and biomass accumulation were suppressed by the sweet sorghum competition. The sweet sorghum hybrid proved highly competitive and, in the agro-ecological conditions of the trials, weed interference did not reduce crop yield.
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spelling Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarinoWeed community interference and phytosociological studies in a sweet sorghum cropSorghum bicolorWeed competitionWeedsThis research was carried out to evaluate the interference periods and phytosociological indexes of the weed community on sweet sorghum, hybrid CVSW 80007, cultivated for two seasons in a year. The treatments were based on an increased duration of weed presence and weed absence after sowing (0, 4, 7, 14, 21, 28, 35, 42, 56 and 68 days after crop emergence for the summer season and 0, 4, 7, 14, 21, 28, 35, 42, 49, 56, 63 and 100 days for the fall season). The weed community was evaluated based on the number of weeds and the dry mass of each weed population in each period of weed control in the summer season and each period of no weed control and weed control in the autumn season. These data were used to determine the relative indexes of density, dominance and importance, and the weed community indexes of diversity and equitability. The main weeds comprising the community were Cyperus rotundus, Alternanthera tenella, Indigofera hirsuta, Amaranthus sp., Digitaria nuda, and Portulaca oleracea. The weed density was found to be the primary factor for the importance of weeds in the community, once their development and biomass accumulation were suppressed by the sweet sorghum competition. The sweet sorghum hybrid proved highly competitive and, in the agro-ecological conditions of the trials, weed interference did not reduce crop yield.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP)Universidade Estadual Paulista (Unesp)Giancotti, P. R.F. [UNESP]Moro, M. S. [UNESP]Nepomuceno, M. P. [UNESP]Barroso, A. A.M. [UNESP]Martins, P. F.R.B. [UNESP]Alves, P. L.C.A. [UNESP]2018-12-11T16:49:18Z2018-12-11T16:49:18Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1590/S0100-83582017350100051Planta Daninha, v. 35.0100-8358http://hdl.handle.net/11449/17011110.1590/S0100-83582017350100051S0100-835820170001002492-s2.0-85029000076S0100-83582017000100249.pdf01033835242882120000-0003-2348-2121Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanta Daninha0,365info:eu-repo/semantics/openAccess2024-01-18T06:30:21Zoai:repositorio.unesp.br:11449/170111Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:22:10.035055Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
Weed community interference and phytosociological studies in a sweet sorghum crop
title Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
spellingShingle Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
Giancotti, P. R.F. [UNESP]
Sorghum bicolor
Weed competition
Weeds
title_short Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
title_full Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
title_fullStr Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
title_full_unstemmed Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
title_sort Interferência e estudos fitossociológicos da comunidade infestante na cultura do sorgo sacarino
author Giancotti, P. R.F. [UNESP]
author_facet Giancotti, P. R.F. [UNESP]
Moro, M. S. [UNESP]
Nepomuceno, M. P. [UNESP]
Barroso, A. A.M. [UNESP]
Martins, P. F.R.B. [UNESP]
Alves, P. L.C.A. [UNESP]
author_role author
author2 Moro, M. S. [UNESP]
Nepomuceno, M. P. [UNESP]
Barroso, A. A.M. [UNESP]
Martins, P. F.R.B. [UNESP]
Alves, P. L.C.A. [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Giancotti, P. R.F. [UNESP]
Moro, M. S. [UNESP]
Nepomuceno, M. P. [UNESP]
Barroso, A. A.M. [UNESP]
Martins, P. F.R.B. [UNESP]
Alves, P. L.C.A. [UNESP]
dc.subject.por.fl_str_mv Sorghum bicolor
Weed competition
Weeds
topic Sorghum bicolor
Weed competition
Weeds
description This research was carried out to evaluate the interference periods and phytosociological indexes of the weed community on sweet sorghum, hybrid CVSW 80007, cultivated for two seasons in a year. The treatments were based on an increased duration of weed presence and weed absence after sowing (0, 4, 7, 14, 21, 28, 35, 42, 56 and 68 days after crop emergence for the summer season and 0, 4, 7, 14, 21, 28, 35, 42, 49, 56, 63 and 100 days for the fall season). The weed community was evaluated based on the number of weeds and the dry mass of each weed population in each period of weed control in the summer season and each period of no weed control and weed control in the autumn season. These data were used to determine the relative indexes of density, dominance and importance, and the weed community indexes of diversity and equitability. The main weeds comprising the community were Cyperus rotundus, Alternanthera tenella, Indigofera hirsuta, Amaranthus sp., Digitaria nuda, and Portulaca oleracea. The weed density was found to be the primary factor for the importance of weeds in the community, once their development and biomass accumulation were suppressed by the sweet sorghum competition. The sweet sorghum hybrid proved highly competitive and, in the agro-ecological conditions of the trials, weed interference did not reduce crop yield.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
2018-12-11T16:49:18Z
2018-12-11T16:49:18Z
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/10.1590/S0100-83582017350100051
Planta Daninha, v. 35.
0100-8358
http://hdl.handle.net/11449/170111
10.1590/S0100-83582017350100051
S0100-83582017000100249
2-s2.0-85029000076
S0100-83582017000100249.pdf
0103383524288212
0000-0003-2348-2121
url http://dx.doi.org/10.1590/S0100-83582017350100051
http://hdl.handle.net/11449/170111
identifier_str_mv Planta Daninha, v. 35.
0100-8358
10.1590/S0100-83582017350100051
S0100-83582017000100249
2-s2.0-85029000076
S0100-83582017000100249.pdf
0103383524288212
0000-0003-2348-2121
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Planta Daninha
0,365
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.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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