Periods of weed interference on transgenic cotton IMACD 6001LL

PARREIRA, Mariana Casari; BRESSANIN, Fernanda Nunes; ALVES, Pedro Luis da Costa Aguiar; SILVA, Marcos Paulo da

Artigo

Periods of weed interference on transgenic cotton IMACD 6001LL

The objective of this study was to determine the periods of weed interference and its impact on productivity of cotton 'IMACD 6001LL'. The experiment was conducted in Jaboticabal, São Paulo, the second crop in 2011 and consisted of two treatment groups: the first culture remained free of competing w...

ver descrição completa

Autor principal:	PARREIRA, Mariana Casari
Outros Autores:	BRESSANIN, Fernanda Nunes, ALVES, Pedro Luis da Costa Aguiar, SILVA, Marcos Paulo da
Grau:	Artigo
Idioma:	eng
Publicado em:	Universidade Federal do Pará 2018
Assuntos:	Gossypium hirsutum Infestantes Competição Produtividade CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MATOLOGIA
Acesso em linha:	http://repositorio.ufpa.br/jspui/handle/2011/9958 http://dx.doi.org/10.1590/1983-21252016v29n214rc

id	ir-2011-9958
recordtype	dspace
spelling	ir-2011-99582018-06-07T05:29:35Z Periods of weed interference on transgenic cotton IMACD 6001LL Períodos de interferência das plantas daninhas em algodoeiro transgênico IMACD 6001LL PARREIRA, Mariana Casari BRESSANIN, Fernanda Nunes ALVES, Pedro Luis da Costa Aguiar SILVA, Marcos Paulo da Gossypium hirsutum Infestantes Competição Produtividade CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MATOLOGIA The objective of this study was to determine the periods of weed interference and its impact on productivity of cotton 'IMACD 6001LL'. The experiment was conducted in Jaboticabal, São Paulo, the second crop in 2011 and consisted of two treatment groups: the first culture remained free of competing weeds since of emergence up different periods of its development: (0-15 , 0-25, 0-35, 0-45, 0-55, 0-65, 0-75 and 0-183 days - harvest). In the second treatment group was held to the contrary: the crop was in harmony with the weeds since of emergence up to the same stages of development described above. The treatments were arranged in a randomized block design in four replications. During these periods was evaluated dry matter accumulation by weeds. The cotton yield data were subjected to regression analysis and resulting in a CPWC of 35 DAE, the CPWR was 133 DAE and .The weed community was composed mainly of Raphanus raphanistrum, Amaranthus spp., Cyperus rotundus, Alternanthera tenella and Eleusine indica. Living with this community throughout the cycle resulted in reduction almost 85% in cotton yield. O objetivo deste trabalho foi determinar os períodos de interferência das plantas daninhas e suas consequências na produtividade da cultura do algodão ‘IMACD 6001LL’. O experimento foi realizado na safrinha 2011 e constou de dois grupos de tratamentos: no primeiro a cultura permaneceu livre da competição das plantas daninhas desde a emergência até épocas crescentes de seu ciclo de desenvolvimento: (0-15; 0-25; 0- 35; 0-45; 0-55; 0-65; 0-75 e 0-183 dias - colheita). No segundo grupo de tratamento realizou-se o contrário: a cultura permaneceu em convivência com as plantas daninhas desde a emergência até os mesmos estágios de desenvolvimentos descritos anteriormente. Os tratamentos experimentais foram dispostos no delineamento em blocos casualisados, em quatro repetições. Nestes períodos foi avaliada a matéria seca acumulada pela comunidade infestante geral e específica. Os dados de produtividade do algodoeiro foram submetidos à análise de regressão resultando em um PAI de 35 dias após a emergência (DAE), o PTPI foi de 133 DAE. A comunidade infestante composta principalmente por Raphanus raphanistrum, Amaranthus spp., Cyperus rotundus, Eleusine indica e Alternanthera tenella, presente todo o ciclo da cultura acarretou em quase 85% de perda na produtividade do algodoeiro. 2018-06-06T18:05:24Z 2018-06-06T18:05:24Z 2016-06 Artigo de Periódico SILVA, Marcos Paulo da et al. Periods of weed interference on transgenic cotton 'IMACD 6001LL'. Revista Caatinga, Mossoró, v. 29, n. 2, p. 375-383, jun. 2016. Disponível em:<http://repositorio.ufpa.br/jspui/handle/2011/9958 >. Acesso em:. 1983-2125 0100-316X http://repositorio.ufpa.br/jspui/handle/2011/9958 http://dx.doi.org/10.1590/1983-21252016v29n214rc eng Revista Caatinga Acesso Aberto application/pdf Universidade Federal do Pará Brasil UFPA http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1983-21252016000200375&lng=pt&nrm=iso
institution	Repositório Institucional - Universidade Federal do Pará
collection	RI-UFPA
language	eng
topic	Gossypium hirsutum Infestantes Competição Produtividade CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MATOLOGIA
spellingShingle	Gossypium hirsutum Infestantes Competição Produtividade CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MATOLOGIA PARREIRA, Mariana Casari Periods of weed interference on transgenic cotton IMACD 6001LL
topic_facet	Gossypium hirsutum Infestantes Competição Produtividade CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::MATOLOGIA
description	The objective of this study was to determine the periods of weed interference and its impact on productivity of cotton 'IMACD 6001LL'. The experiment was conducted in Jaboticabal, São Paulo, the second crop in 2011 and consisted of two treatment groups: the first culture remained free of competing weeds since of emergence up different periods of its development: (0-15 , 0-25, 0-35, 0-45, 0-55, 0-65, 0-75 and 0-183 days - harvest). In the second treatment group was held to the contrary: the crop was in harmony with the weeds since of emergence up to the same stages of development described above. The treatments were arranged in a randomized block design in four replications. During these periods was evaluated dry matter accumulation by weeds. The cotton yield data were subjected to regression analysis and resulting in a CPWC of 35 DAE, the CPWR was 133 DAE and .The weed community was composed mainly of Raphanus raphanistrum, Amaranthus spp., Cyperus rotundus, Alternanthera tenella and Eleusine indica. Living with this community throughout the cycle resulted in reduction almost 85% in cotton yield.
format	Artigo
author	PARREIRA, Mariana Casari
author2	BRESSANIN, Fernanda Nunes ALVES, Pedro Luis da Costa Aguiar SILVA, Marcos Paulo da
author2Str	BRESSANIN, Fernanda Nunes ALVES, Pedro Luis da Costa Aguiar SILVA, Marcos Paulo da
title	Periods of weed interference on transgenic cotton IMACD 6001LL
title_short	Periods of weed interference on transgenic cotton IMACD 6001LL
title_full	Periods of weed interference on transgenic cotton IMACD 6001LL
title_fullStr	Periods of weed interference on transgenic cotton IMACD 6001LL
title_full_unstemmed	Periods of weed interference on transgenic cotton IMACD 6001LL
title_sort	periods of weed interference on transgenic cotton imacd 6001ll
publisher	Universidade Federal do Pará
publishDate	2018
url	http://repositorio.ufpa.br/jspui/handle/2011/9958 http://dx.doi.org/10.1590/1983-21252016v29n214rc
_version_	1832604034966487040
score	11.755432

Periods of weed interference on transgenic cotton IMACD 6001LL

Registros relacionados