Yield components in wheat affected by sowing density and growth regulators

Detalhes bibliográficos
Autor(a) principal: Fioreze, Samuel Luiz
Data de Publicação: 2014
Outros Autores: Rodrigues, João Domingos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10339
Resumo: Improvement on yield potential of plants by crop management is the main research challenge due to the growing of food demand worldwide. The objective of this work was to study physiological and morphological traits and its relationship with yield components and yield of wheat as affected by sowing densities and plant growth regulators. The experimental design was a split-plot design with four replications. The plots were consisted by four sowing densities (30, 50 70 and 90 plants m-1) and the subplots were consisted by plant growth regulators [control, (IBA+GA+KT), Trinexapac-Ethyl e (IBA+GA+KT) + Trinexapac-Ethyl]. Dry matter accumulation, plant height, source-sink distance, gas exchange and yield were determined. Trinexapac-Ethyl application resulted in decreasing of plant height, source-sink distance and flag leaf length; however, the grain yield was not affected. The number of plants per unit area affected dry matter accumulation. Higher dry matter accumulation showed direct relationship with yield and yield components in lower plant densities.
id UEL-11_6771edcb9b5b967117707b33b17195ac
oai_identifier_str oai:ojs.pkp.sfu.ca:article/10339
network_acronym_str UEL-11
network_name_str Semina. Ciências Agrárias (Online)
repository_id_str
spelling Yield components in wheat affected by sowing density and growth regulatorsYield components in wheat affected by sowing density and growth regulatorsComponentes produtivos do trigo afetados pela densidade de semeadura e aplicação de regulador vegetalTriticum aestivum L.TilleringDry matter accumulationFlag leafIBA GA KTTrinexapac-Ethyl.Triticum aestivum L.PerfilhamentoAcúmulo de matéria secaFolha bandeiraIBA GA KTEtil-Trinexapac.Ciências AgráriasImprovement on yield potential of plants by crop management is the main research challenge due to the growing of food demand worldwide. The objective of this work was to study physiological and morphological traits and its relationship with yield components and yield of wheat as affected by sowing densities and plant growth regulators. The experimental design was a split-plot design with four replications. The plots were consisted by four sowing densities (30, 50 70 and 90 plants m-1) and the subplots were consisted by plant growth regulators [control, (IBA+GA+KT), Trinexapac-Ethyl e (IBA+GA+KT) + Trinexapac-Ethyl]. Dry matter accumulation, plant height, source-sink distance, gas exchange and yield were determined. Trinexapac-Ethyl application resulted in decreasing of plant height, source-sink distance and flag leaf length; however, the grain yield was not affected. The number of plants per unit area affected dry matter accumulation. Higher dry matter accumulation showed direct relationship with yield and yield components in lower plant densities.Improvement on yield potential of plants by crop management is the main research challenge due to the growing of food demand worldwide. The objective of this work was to study yield components of wheat as affected by sowing densities and plant growth regulators. The experimental design was a split-plot design with four replications. The plots were consisted by four sowing densities (30, 50 70 and 90 plants m-1) and the subplots were consisted by plant growth regulators [control, (Ax+GA+CK), Trinexapac-Ethyl e (Ax+GA+CK) + Trinexapac-Ethyl]. Dry matter accumulation, plant height, source-sink distance, gas exchange and yield were determined. Trinexapac-Ethyl application resulted in decreasing of plant height, source-sink distance and flag leaf length; however, the grain yield was not affected. The number of plants per unit area affected dry matter accumulation. Higher dry matter accumulation showed direct relationship with yield and yield components in lower plant densities.Melhorar as características produtivas de plantas cultivadas através de práticas de cultivo é um dos principais desafios da pesquisa frente à crescente demanda de alimentos em nível mundial. O presente trabalho teve por objetivo estudar as características morfofisiológicas e suas relações com os componentes da produção e a produtividade da cultura trigo em função da densidade de semeadura e da aplicação de reguladores vegetais. O experimento de campo foi conduzido em delineamento experimental de blocos casualizados em esquema de parcelas sub-divididas com quatro repetições. As parcelas foram formadas por quatro densidades de semeadura (30, 50, 70 e 90 plantas m-1) enquanto as sub-parcelas foram formadas pela aplicação de reguladores vegetais [controle, (IBA+GA+KT), Etil-Trinexapac e (IBA+GA+KT) + Etil-Trinexapac]. Foram avaliados o acúmulo de matéria seca, a altura de plantas, a distância entre fonte e dreno, as trocas gasosas e a produtividade da cultura. A aplicação de Etil- Trinexapac resultou em diminuição da altura de plantas, da distância fonte-dreno e do desenvolvimento da folha bandeira, sem afetar a produtividade da cultura. A densidade de semeadura afetou o acúmulo de matéria seca de plantas, sendo que o maior acúmulo de matéria seca na fase de antese teve efeito positivo direto nos componentes da produção e na produtividade da cultura nas menores densidades.UEL2014-02-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1033910.5433/1679-0359.2014v35n1p39Semina: Ciências Agrárias; Vol. 35 No. 1 (2014); 39-54Semina: Ciências Agrárias; v. 35 n. 1 (2014); 39-541679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10339/pdf_210Fioreze, Samuel LuizRodrigues, João Domingosinfo:eu-repo/semantics/openAccess2015-11-19T18:35:58Zoai:ojs.pkp.sfu.ca:article/10339Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:35:58Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Yield components in wheat affected by sowing density and growth regulators
Yield components in wheat affected by sowing density and growth regulators
Componentes produtivos do trigo afetados pela densidade de semeadura e aplicação de regulador vegetal
title Yield components in wheat affected by sowing density and growth regulators
spellingShingle Yield components in wheat affected by sowing density and growth regulators
Fioreze, Samuel Luiz
Triticum aestivum L.
Tillering
Dry matter accumulation
Flag leaf
IBA GA KT
Trinexapac-Ethyl.
Triticum aestivum L.
Perfilhamento
Acúmulo de matéria seca
Folha bandeira
IBA GA KT
Etil-Trinexapac.
Ciências Agrárias
title_short Yield components in wheat affected by sowing density and growth regulators
title_full Yield components in wheat affected by sowing density and growth regulators
title_fullStr Yield components in wheat affected by sowing density and growth regulators
title_full_unstemmed Yield components in wheat affected by sowing density and growth regulators
title_sort Yield components in wheat affected by sowing density and growth regulators
author Fioreze, Samuel Luiz
author_facet Fioreze, Samuel Luiz
Rodrigues, João Domingos
author_role author
author2 Rodrigues, João Domingos
author2_role author
dc.contributor.author.fl_str_mv Fioreze, Samuel Luiz
Rodrigues, João Domingos
dc.subject.por.fl_str_mv Triticum aestivum L.
Tillering
Dry matter accumulation
Flag leaf
IBA GA KT
Trinexapac-Ethyl.
Triticum aestivum L.
Perfilhamento
Acúmulo de matéria seca
Folha bandeira
IBA GA KT
Etil-Trinexapac.
Ciências Agrárias
topic Triticum aestivum L.
Tillering
Dry matter accumulation
Flag leaf
IBA GA KT
Trinexapac-Ethyl.
Triticum aestivum L.
Perfilhamento
Acúmulo de matéria seca
Folha bandeira
IBA GA KT
Etil-Trinexapac.
Ciências Agrárias
description Improvement on yield potential of plants by crop management is the main research challenge due to the growing of food demand worldwide. The objective of this work was to study physiological and morphological traits and its relationship with yield components and yield of wheat as affected by sowing densities and plant growth regulators. The experimental design was a split-plot design with four replications. The plots were consisted by four sowing densities (30, 50 70 and 90 plants m-1) and the subplots were consisted by plant growth regulators [control, (IBA+GA+KT), Trinexapac-Ethyl e (IBA+GA+KT) + Trinexapac-Ethyl]. Dry matter accumulation, plant height, source-sink distance, gas exchange and yield were determined. Trinexapac-Ethyl application resulted in decreasing of plant height, source-sink distance and flag leaf length; however, the grain yield was not affected. The number of plants per unit area affected dry matter accumulation. Higher dry matter accumulation showed direct relationship with yield and yield components in lower plant densities.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-26
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10339
10.5433/1679-0359.2014v35n1p39
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10339
identifier_str_mv 10.5433/1679-0359.2014v35n1p39
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/10339/pdf_210
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 UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 35 No. 1 (2014); 39-54
Semina: Ciências Agrárias; v. 35 n. 1 (2014); 39-54
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
_version_ 1799306065954734080

Registros relacionados