Genetic control of traits related to phosphorus use efficiency in tropical maize

Detalhes bibliográficos
Autor(a) principal: Mendes, Flávia Ferreira
Data de Publicação: 2015
Outros Autores: Guimarães, Lauro José Moreira, Guimarães, Cláudia Teixeira, Souza, João Cândido, Guimarães, Paulo Evaristo Oliveira, Parentoni, Sidney Netto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/38037
Resumo: Knowing the inheritance of traits is essential to establish selection strategies in breeding programs. The aim of this study was to determine the genetic control of traits related to the phosphorus use efficiency in maize. A total of 280 progenies were developed according to design III, which were evaluated in the field under high and low phosphorus (P) availability. The genetic variance components were estimated for the agronomic traits and indices that define P use efficiency. The results indicated that the additive and dominance effects were important in explaining the genetic variability for the flowering time, grain yield and P efficiency indices. However, dominance effects prevailed, indicating that breeding efforts should be made to develop hybrids exploiting the heterosis for traits related to P use efficiency.
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spelling Genetic control of traits related to phosphorus use efficiency in tropical maizeControle genético de características relacionadas à eficiência no uso de fósforo em milho tropicalAbiotic stressPhosphorus acquisition efficiencyMaize - Phosphate fertilizerEstresse abióticoEficiência na aquisição de fósforoMilho - Fertilização fosfatadaKnowing the inheritance of traits is essential to establish selection strategies in breeding programs. The aim of this study was to determine the genetic control of traits related to the phosphorus use efficiency in maize. A total of 280 progenies were developed according to design III, which were evaluated in the field under high and low phosphorus (P) availability. The genetic variance components were estimated for the agronomic traits and indices that define P use efficiency. The results indicated that the additive and dominance effects were important in explaining the genetic variability for the flowering time, grain yield and P efficiency indices. However, dominance effects prevailed, indicating that breeding efforts should be made to develop hybrids exploiting the heterosis for traits related to P use efficiency.Conhecer a herança de características utilizadas na seleção é fundamental para estabelecer estratégias de melhoramento. O objetivo desse trabalho foi determinar o controle genético de características relacionadas à eficiência no uso de fósforo em milho. Foram desenvolvidas 280 progênies segundo delineamento III, que foram avaliadas em ambientes com alta e baixa disponibilidade de fósforo (P). Os componentes de variância genética foram estimados para as características agronômicas e para os índices que compõem a eficiência de uso de P. Os efeitos aditivos e de dominância foram importantes para explicar a variabilidade genética para as características de florescimento, produtividade de grãos e para os índices de eficiência ao P. Contudo, houve predomínio dos efeitos de dominância, indicando que, do ponto de vista de melhoramento, esforços devem ser direcionados para obtenção de híbridos a fim de explorar a heterose para as características relacionadas à eficiência no uso de P.Brazilian Society of Plant Breeding2019-12-06T10:40:15Z2019-12-06T10:40:15Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMENDES, F. F. et al. Genetic control of traits related to phosphorus use efficiency in tropical maize. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 15, n. 2, p. 59-65, 2015.http://repositorio.ufla.br/jspui/handle/1/38037Crop Breeding and Applied Biotechnologyreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessMendes, Flávia FerreiraGuimarães, Lauro José MoreiraGuimarães, Cláudia TeixeiraSouza, João CândidoGuimarães, Paulo Evaristo OliveiraParentoni, Sidney Nettoeng2019-12-06T10:40:16Zoai:localhost:1/38037Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2019-12-06T10:40:16Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Genetic control of traits related to phosphorus use efficiency in tropical maize
Controle genético de características relacionadas à eficiência no uso de fósforo em milho tropical
title Genetic control of traits related to phosphorus use efficiency in tropical maize
spellingShingle Genetic control of traits related to phosphorus use efficiency in tropical maize
Mendes, Flávia Ferreira
Abiotic stress
Phosphorus acquisition efficiency
Maize - Phosphate fertilizer
Estresse abiótico
Eficiência na aquisição de fósforo
Milho - Fertilização fosfatada
title_short Genetic control of traits related to phosphorus use efficiency in tropical maize
title_full Genetic control of traits related to phosphorus use efficiency in tropical maize
title_fullStr Genetic control of traits related to phosphorus use efficiency in tropical maize
title_full_unstemmed Genetic control of traits related to phosphorus use efficiency in tropical maize
title_sort Genetic control of traits related to phosphorus use efficiency in tropical maize
author Mendes, Flávia Ferreira
author_facet Mendes, Flávia Ferreira
Guimarães, Lauro José Moreira
Guimarães, Cláudia Teixeira
Souza, João Cândido
Guimarães, Paulo Evaristo Oliveira
Parentoni, Sidney Netto
author_role author
author2 Guimarães, Lauro José Moreira
Guimarães, Cláudia Teixeira
Souza, João Cândido
Guimarães, Paulo Evaristo Oliveira
Parentoni, Sidney Netto
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Mendes, Flávia Ferreira
Guimarães, Lauro José Moreira
Guimarães, Cláudia Teixeira
Souza, João Cândido
Guimarães, Paulo Evaristo Oliveira
Parentoni, Sidney Netto
dc.subject.por.fl_str_mv Abiotic stress
Phosphorus acquisition efficiency
Maize - Phosphate fertilizer
Estresse abiótico
Eficiência na aquisição de fósforo
Milho - Fertilização fosfatada
topic Abiotic stress
Phosphorus acquisition efficiency
Maize - Phosphate fertilizer
Estresse abiótico
Eficiência na aquisição de fósforo
Milho - Fertilização fosfatada
description Knowing the inheritance of traits is essential to establish selection strategies in breeding programs. The aim of this study was to determine the genetic control of traits related to the phosphorus use efficiency in maize. A total of 280 progenies were developed according to design III, which were evaluated in the field under high and low phosphorus (P) availability. The genetic variance components were estimated for the agronomic traits and indices that define P use efficiency. The results indicated that the additive and dominance effects were important in explaining the genetic variability for the flowering time, grain yield and P efficiency indices. However, dominance effects prevailed, indicating that breeding efforts should be made to develop hybrids exploiting the heterosis for traits related to P use efficiency.
publishDate 2015
dc.date.none.fl_str_mv 2015
2019-12-06T10:40:15Z
2019-12-06T10:40:15Z
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 MENDES, F. F. et al. Genetic control of traits related to phosphorus use efficiency in tropical maize. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 15, n. 2, p. 59-65, 2015.
http://repositorio.ufla.br/jspui/handle/1/38037
identifier_str_mv MENDES, F. F. et al. Genetic control of traits related to phosphorus use efficiency in tropical maize. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 15, n. 2, p. 59-65, 2015.
url http://repositorio.ufla.br/jspui/handle/1/38037
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Brazilian Society of Plant Breeding
publisher.none.fl_str_mv Brazilian Society of Plant Breeding
dc.source.none.fl_str_mv Crop Breeding and Applied Biotechnology
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815439278049591296

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