Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa

Detalhes bibliográficos
Autor(a) principal: JAVAID,M.M.
Data de Publicação: 2016
Outros Autores: TANVEER,A., ALI,H.H., SHAHID,M.A., BALAL,R.M., AQEEL,M.A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Planta daninha (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100035
Resumo: Emex australis and E. spinosa are significant weed species in wheat and other crops. Information on the extent of competition of the Emex species will be helpful to access yield losses in wheat. Field experiments were conducted to quantify the interference of tested weed densities each as single or mixture of both at 1:1 on their growth and yield, wheat yield components and wheat grain yield losses in two consecutive years. Dry weight of both weed species increased from 3-6 g m-2 with every additional plant of weed, whereas seed number and weight per plant decreased with increasing density of either weed. Both weed species caused considerable decrease in yield components like spike bearing tillers, number of grains per spike, 1000-grain weight of wheat with increasing density population of the weeds. Based on non-linear hyperbolic regression model equation, maximum yield loss at asymptotic weed density was estimated to be 44 and 62% with E. australis, 56 and 70% with E. spinosa and 63 and 72% with mixture of both species at 1:1 during both year of study, respectively. It was concluded that E. spinosa has more competition effects on wheat crop as compared to E. australis.
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spelling Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosaTriticum aestivumyield lossweed competitionEmex australisEmex spinosaEmex australis and E. spinosa are significant weed species in wheat and other crops. Information on the extent of competition of the Emex species will be helpful to access yield losses in wheat. Field experiments were conducted to quantify the interference of tested weed densities each as single or mixture of both at 1:1 on their growth and yield, wheat yield components and wheat grain yield losses in two consecutive years. Dry weight of both weed species increased from 3-6 g m-2 with every additional plant of weed, whereas seed number and weight per plant decreased with increasing density of either weed. Both weed species caused considerable decrease in yield components like spike bearing tillers, number of grains per spike, 1000-grain weight of wheat with increasing density population of the weeds. Based on non-linear hyperbolic regression model equation, maximum yield loss at asymptotic weed density was estimated to be 44 and 62% with E. australis, 56 and 70% with E. spinosa and 63 and 72% with mixture of both species at 1:1 during both year of study, respectively. It was concluded that E. spinosa has more competition effects on wheat crop as compared to E. australis.Sociedade Brasileira da Ciência das Plantas Daninhas 2016-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100035Planta Daninha v.34 n.1 2016reponame:Planta daninha (Online)instname:Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)instacron:SBCPD10.1590/S0100-83582016340100004info:eu-repo/semantics/openAccessJAVAID,M.M.TANVEER,A.ALI,H.H.SHAHID,M.A.BALAL,R.M.AQEEL,M.A.eng2016-03-28T00:00:00Zoai:scielo:S0100-83582016000100035Revistahttp://revistas.cpd.ufv.br/pdaninhaweb/https://old.scielo.br/oai/scielo-oai.php||rpdaninha@gmail.com1806-96810100-8358opendoar:2016-03-28T00:00Planta daninha (Online) - Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)false
dc.title.none.fl_str_mv Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa
title Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa
spellingShingle Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa
JAVAID,M.M.
Triticum aestivum
yield loss
weed competition
Emex australis
Emex spinosa
title_short Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa
title_full Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa
title_fullStr Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa
title_full_unstemmed Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa
title_sort Wheat Yield Loss in a Two Species Competition with Emex australis and Emex spinosa
author JAVAID,M.M.
author_facet JAVAID,M.M.
TANVEER,A.
ALI,H.H.
SHAHID,M.A.
BALAL,R.M.
AQEEL,M.A.
author_role author
author2 TANVEER,A.
ALI,H.H.
SHAHID,M.A.
BALAL,R.M.
AQEEL,M.A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv JAVAID,M.M.
TANVEER,A.
ALI,H.H.
SHAHID,M.A.
BALAL,R.M.
AQEEL,M.A.
dc.subject.por.fl_str_mv Triticum aestivum
yield loss
weed competition
Emex australis
Emex spinosa
topic Triticum aestivum
yield loss
weed competition
Emex australis
Emex spinosa
description Emex australis and E. spinosa are significant weed species in wheat and other crops. Information on the extent of competition of the Emex species will be helpful to access yield losses in wheat. Field experiments were conducted to quantify the interference of tested weed densities each as single or mixture of both at 1:1 on their growth and yield, wheat yield components and wheat grain yield losses in two consecutive years. Dry weight of both weed species increased from 3-6 g m-2 with every additional plant of weed, whereas seed number and weight per plant decreased with increasing density of either weed. Both weed species caused considerable decrease in yield components like spike bearing tillers, number of grains per spike, 1000-grain weight of wheat with increasing density population of the weeds. Based on non-linear hyperbolic regression model equation, maximum yield loss at asymptotic weed density was estimated to be 44 and 62% with E. australis, 56 and 70% with E. spinosa and 63 and 72% with mixture of both species at 1:1 during both year of study, respectively. It was concluded that E. spinosa has more competition effects on wheat crop as compared to E. australis.
publishDate 2016
dc.date.none.fl_str_mv 2016-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100035
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100035
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-83582016340100004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira da Ciência das Plantas Daninhas
publisher.none.fl_str_mv Sociedade Brasileira da Ciência das Plantas Daninhas
dc.source.none.fl_str_mv Planta Daninha v.34 n.1 2016
reponame:Planta daninha (Online)
instname:Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
instacron:SBCPD
instname_str Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
instacron_str SBCPD
institution SBCPD
reponame_str Planta daninha (Online)
collection Planta daninha (Online)
repository.name.fl_str_mv Planta daninha (Online) - Sociedade Brasileira da Ciência das Plantas Daninhas (SBCPD)
repository.mail.fl_str_mv ||rpdaninha@gmail.com
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