Early generation selection strategy for yield and yield components in white oat
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000400009 |
Resumo: | Several studies have searched for higher efficiency on plant selection in generations bearing high frequency of heterozygotes. This work aims to compare the response of direct selection for grain yield, indirect selection through average grain weight and combined selection for higher yield potential and average grain weight of oat plants (Avena sativa L.), using the honeycomb breeding method. These strategies were applied in the growing seasons of 2001 and 2002 in F3 and F4 populations, respectively, in the crosses UPF 18 CTC 5, OR 2 <FONT FACE=Symbol>´</FONT> UPF 7 and OR 2 <FONT FACE=Symbol>´</FONT> UPF 18. The ten best genetic combinations obtained for each cross and selection strategy were evaluated in greenhouse yield trials. Selection of plants with higher yield and average grain weight might be performed on early generations with high levels of heterozygosis. The direct selection for grain yield and indirect selection for average grain weight enabled to increase the average of characters under selection. However, genotypes obtained through direct selection presented lower average grain weight and those obtained through the indirect selection presented lower yield potential. Selection strategies must be run simultaneously to combine in only one genotype high yield potential and large grain weight, enabling maximum genetic gain for both characters. |
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USP-18 |
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Scientia Agrícola (Online) |
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|
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Early generation selection strategy for yield and yield components in white oatselection methodheritabilitysingle plant selectionSeveral studies have searched for higher efficiency on plant selection in generations bearing high frequency of heterozygotes. This work aims to compare the response of direct selection for grain yield, indirect selection through average grain weight and combined selection for higher yield potential and average grain weight of oat plants (Avena sativa L.), using the honeycomb breeding method. These strategies were applied in the growing seasons of 2001 and 2002 in F3 and F4 populations, respectively, in the crosses UPF 18 CTC 5, OR 2 <FONT FACE=Symbol>´</FONT> UPF 7 and OR 2 <FONT FACE=Symbol>´</FONT> UPF 18. The ten best genetic combinations obtained for each cross and selection strategy were evaluated in greenhouse yield trials. Selection of plants with higher yield and average grain weight might be performed on early generations with high levels of heterozygosis. The direct selection for grain yield and indirect selection for average grain weight enabled to increase the average of characters under selection. However, genotypes obtained through direct selection presented lower average grain weight and those obtained through the indirect selection presented lower yield potential. Selection strategies must be run simultaneously to combine in only one genotype high yield potential and large grain weight, enabling maximum genetic gain for both characters.Escola Superior de Agricultura "Luiz de Queiroz"2005-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000400009Scientia Agricola v.62 n.4 2005reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162005000400009info:eu-repo/semantics/openAccessBenin,GiovaniCarvalho,Fernando Irajá Félix deOliveira,Antônio Costa deLorencetti,ClaudirValério,Igor PiresSchmidt,Douglas André MallmannHartwig,IrineuRibeiro,GuilhermeVieira,Eduardo AlanoSilva,José Antonio Gonzales daeng2005-08-23T00:00:00Zoai:scielo:S0103-90162005000400009Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2005-08-23T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Early generation selection strategy for yield and yield components in white oat |
title |
Early generation selection strategy for yield and yield components in white oat |
spellingShingle |
Early generation selection strategy for yield and yield components in white oat Benin,Giovani selection method heritability single plant selection |
title_short |
Early generation selection strategy for yield and yield components in white oat |
title_full |
Early generation selection strategy for yield and yield components in white oat |
title_fullStr |
Early generation selection strategy for yield and yield components in white oat |
title_full_unstemmed |
Early generation selection strategy for yield and yield components in white oat |
title_sort |
Early generation selection strategy for yield and yield components in white oat |
author |
Benin,Giovani |
author_facet |
Benin,Giovani Carvalho,Fernando Irajá Félix de Oliveira,Antônio Costa de Lorencetti,Claudir Valério,Igor Pires Schmidt,Douglas André Mallmann Hartwig,Irineu Ribeiro,Guilherme Vieira,Eduardo Alano Silva,José Antonio Gonzales da |
author_role |
author |
author2 |
Carvalho,Fernando Irajá Félix de Oliveira,Antônio Costa de Lorencetti,Claudir Valério,Igor Pires Schmidt,Douglas André Mallmann Hartwig,Irineu Ribeiro,Guilherme Vieira,Eduardo Alano Silva,José Antonio Gonzales da |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Benin,Giovani Carvalho,Fernando Irajá Félix de Oliveira,Antônio Costa de Lorencetti,Claudir Valério,Igor Pires Schmidt,Douglas André Mallmann Hartwig,Irineu Ribeiro,Guilherme Vieira,Eduardo Alano Silva,José Antonio Gonzales da |
dc.subject.por.fl_str_mv |
selection method heritability single plant selection |
topic |
selection method heritability single plant selection |
description |
Several studies have searched for higher efficiency on plant selection in generations bearing high frequency of heterozygotes. This work aims to compare the response of direct selection for grain yield, indirect selection through average grain weight and combined selection for higher yield potential and average grain weight of oat plants (Avena sativa L.), using the honeycomb breeding method. These strategies were applied in the growing seasons of 2001 and 2002 in F3 and F4 populations, respectively, in the crosses UPF 18 CTC 5, OR 2 <FONT FACE=Symbol>´</FONT> UPF 7 and OR 2 <FONT FACE=Symbol>´</FONT> UPF 18. The ten best genetic combinations obtained for each cross and selection strategy were evaluated in greenhouse yield trials. Selection of plants with higher yield and average grain weight might be performed on early generations with high levels of heterozygosis. The direct selection for grain yield and indirect selection for average grain weight enabled to increase the average of characters under selection. However, genotypes obtained through direct selection presented lower average grain weight and those obtained through the indirect selection presented lower yield potential. Selection strategies must be run simultaneously to combine in only one genotype high yield potential and large grain weight, enabling maximum genetic gain for both characters. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000400009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000400009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-90162005000400009 |
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 |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.62 n.4 2005 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936459732123648 |