Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value

Detalhes bibliográficos
Autor(a) principal: Gonçalves dos Santos, Iara
Data de Publicação: 2018
Outros Autores: Damião Cruz, Cosme, Nascimento, Moysés, Domiciano Silva Rosado, Renato, de Paula Ferreira, Reinaldo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/51950
Resumo: Alfalfa breeding aimed at trait improvement for livestock feed takes longer periods of time, if compared to many other crops. Therefore, better selection methods are necessary for the success of alfalfa breeding programs. Although knowing about selection methods is quite important, there is a notable lack of information, as regards successful solutions. This study aimed to use direct, indirect and simultaneous selection methods for selecting alfalfa cultivars, based on yield traits and nutritive value. The evaluated traits were subdivided into two groups: forage yield and nutritive value. Selection gains were estimated by direct, indirect and simultaneous selection for each group, considering the selection of the 25 % best cultivars. Direct and indirect selections among genotype averages are not efficient to provide the desirable responses to the whole set of traits. The results for simultaneous selection, using the Tai index, provided a more balanced gain distribution to the set of traits in all cuts. The simultaneous selection allowed the identification of the 5681 and Verdor cultivars in the first cut, as well as ProINTA Patricia in the second cut, as superior in the two groups of evaluated traits.
id UFG-6_efb361b70ea108530e8d159af52ee655
oai_identifier_str oai:ojs.revistas.ufg.br:article/51950
network_acronym_str UFG-6
network_name_str Pesquisa Agropecuária Tropical (Online)
repository_id_str
spelling Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive valueSeleção direta, indireta e simultânea como alternativas para melhoramento de alfafa em produção e valor nutritivo da forragemMedicago sativaselection gainsselection index.Medicago sativaGanhos de seleçãoÍndice de seleçãoAlfalfa breeding aimed at trait improvement for livestock feed takes longer periods of time, if compared to many other crops. Therefore, better selection methods are necessary for the success of alfalfa breeding programs. Although knowing about selection methods is quite important, there is a notable lack of information, as regards successful solutions. This study aimed to use direct, indirect and simultaneous selection methods for selecting alfalfa cultivars, based on yield traits and nutritive value. The evaluated traits were subdivided into two groups: forage yield and nutritive value. Selection gains were estimated by direct, indirect and simultaneous selection for each group, considering the selection of the 25 % best cultivars. Direct and indirect selections among genotype averages are not efficient to provide the desirable responses to the whole set of traits. The results for simultaneous selection, using the Tai index, provided a more balanced gain distribution to the set of traits in all cuts. The simultaneous selection allowed the identification of the 5681 and Verdor cultivars in the first cut, as well as ProINTA Patricia in the second cut, as superior in the two groups of evaluated traits.O melhoramento genético da alfafa para alimentação animal leva mais tempo do que para muitas outras culturas. Por isso, definir melhores métodos de seleção é importante para o sucesso do melhoramento da cultura. Objetivou-se utilizar métodos de seleção direta, indireta e simultânea, para a seleção de cultivares de alfafa, com base em características de produção e valor nutritivo. As características avaliadas foram subdivididas em dois grupos: produção e valor nutritivo. Os ganhos de seleção foram estimados por seleção direta, indireta e simultânea para cada grupo, considerando-se a seleção das 25 % melhores cultivares. As seleções direta e indireta entre as médias dos genótipos não são eficientes para fornecer as respostas desejáveis para todo o conjunto de características. Os resultados da seleção simultânea, utilizando-se o índice de Tai, forneceram uma distribuição de ganhos mais equilibrada para os conjuntos de características em todos os cortes. A seleção simultânea permitiu a identificação das cultivares 5681 e Verdor no primeiro corte, bem como a ProINTA Patricia no segundo corte, como superiores, nos dois grupos de características avaliadas.Escola de Agronomia - Universidade Federal de Goiás2018-07-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/51950Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 48, n. 2, Apr./Jun. 2018; 178-189Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 48, n. 2, abr./jun. 2018; 178-189Pesquisa Agropecuária Tropical; v. 48, n. 2, abr./jun. 2018; 178-1891983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/51950/25865Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessGonçalves dos Santos, IaraDamião Cruz, CosmeNascimento, MoysésDomiciano Silva Rosado, Renatode Paula Ferreira, Reinaldo2020-07-13T19:08:47Zoai:ojs.revistas.ufg.br:article/51950Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:20.272874Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value
Seleção direta, indireta e simultânea como alternativas para melhoramento de alfafa em produção e valor nutritivo da forragem
title Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value
spellingShingle Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value
Gonçalves dos Santos, Iara
Medicago sativa
selection gains
selection index.
Medicago sativa
Ganhos de seleção
Índice de seleção
title_short Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value
title_full Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value
title_fullStr Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value
title_full_unstemmed Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value
title_sort Direct, indirect and simultaneous selection as strategies for alfalfa breeding on forage yield and nutritive value
author Gonçalves dos Santos, Iara
author_facet Gonçalves dos Santos, Iara
Damião Cruz, Cosme
Nascimento, Moysés
Domiciano Silva Rosado, Renato
de Paula Ferreira, Reinaldo
author_role author
author2 Damião Cruz, Cosme
Nascimento, Moysés
Domiciano Silva Rosado, Renato
de Paula Ferreira, Reinaldo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Gonçalves dos Santos, Iara
Damião Cruz, Cosme
Nascimento, Moysés
Domiciano Silva Rosado, Renato
de Paula Ferreira, Reinaldo
dc.subject.por.fl_str_mv Medicago sativa
selection gains
selection index.
Medicago sativa
Ganhos de seleção
Índice de seleção
topic Medicago sativa
selection gains
selection index.
Medicago sativa
Ganhos de seleção
Índice de seleção
description Alfalfa breeding aimed at trait improvement for livestock feed takes longer periods of time, if compared to many other crops. Therefore, better selection methods are necessary for the success of alfalfa breeding programs. Although knowing about selection methods is quite important, there is a notable lack of information, as regards successful solutions. This study aimed to use direct, indirect and simultaneous selection methods for selecting alfalfa cultivars, based on yield traits and nutritive value. The evaluated traits were subdivided into two groups: forage yield and nutritive value. Selection gains were estimated by direct, indirect and simultaneous selection for each group, considering the selection of the 25 % best cultivars. Direct and indirect selections among genotype averages are not efficient to provide the desirable responses to the whole set of traits. The results for simultaneous selection, using the Tai index, provided a more balanced gain distribution to the set of traits in all cuts. The simultaneous selection allowed the identification of the 5681 and Verdor cultivars in the first cut, as well as ProINTA Patricia in the second cut, as superior in the two groups of evaluated traits.
publishDate 2018
dc.date.none.fl_str_mv 2018-07-09
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/51950
url https://revistas.ufg.br/pat/article/view/51950
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/51950/25865
dc.rights.driver.fl_str_mv Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 48, n. 2, Apr./Jun. 2018; 178-189
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 48, n. 2, abr./jun. 2018; 178-189
Pesquisa Agropecuária Tropical; v. 48, n. 2, abr./jun. 2018; 178-189
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874819939893248

Registros relacionados