Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat

Detalhes bibliográficos
Autor(a) principal: Camargo, Carlos Eduardo de Oliveira
Data de Publicação: 2014
Outros Autores: Ramos, Valdir Josué
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/16612
Resumo: The values for grain yield, number of grains per spikelet, and height of wheal planta (Triticum aeslivum L.) were estimated, as well as the environmental, phenotypic and genetic correlations between these characteristics. The experiment was carried out at the Itararé Experiment Station, in Itararé, SP, Brazil, on crosses of the standard height cultivar C-3 with the semi-dwarf cultivar Siete Cerros, and the dwarf cultivars Tordo, Vican-71 and Olesen. Broad sense heritability estimates for plant height and number of grain per spikelet were medium (0.525 and 0.459, respectively), and for grain yield it was low (0.255). Narrow sense heritability estimates were 0.815, 0.396 and 0.170, and the coefficients of determination were 0.615**, 0.460** and 0.174, respectively, for plant height, number of grains per spikelet, and grain yield. The phenotypic correlation between grain yield, plant height and number of grains per spikelet were positive and highly significant and the phenotypic correlation between plant height and number of grains per spikelet were nonsignificant except for the cross C-3 x Vican-71 for which it was positive and significant. The results suggest dual it will be possible to select plant types which combine semidwarf height, large number of grains per spikelet and high yield potential; however, large F2 population will be required to ensure the frequency of desired recombinants.
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spelling Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheatHerdabilidades e associações entre número de grãos por espigueta altura das plantas e produção de grãos em populações híbridas de trigo envolvendo diferentes fontes de nanismoTriticum aestivum; tall plant type; semidwarf type; dwarf type; heritability; phenotypic correlationTriricum aestivum; porte alto; porte anão; porte semi-anão; herdabilidade; correlações fenotípicas.The values for grain yield, number of grains per spikelet, and height of wheal planta (Triticum aeslivum L.) were estimated, as well as the environmental, phenotypic and genetic correlations between these characteristics. The experiment was carried out at the Itararé Experiment Station, in Itararé, SP, Brazil, on crosses of the standard height cultivar C-3 with the semi-dwarf cultivar Siete Cerros, and the dwarf cultivars Tordo, Vican-71 and Olesen. Broad sense heritability estimates for plant height and number of grain per spikelet were medium (0.525 and 0.459, respectively), and for grain yield it was low (0.255). Narrow sense heritability estimates were 0.815, 0.396 and 0.170, and the coefficients of determination were 0.615**, 0.460** and 0.174, respectively, for plant height, number of grains per spikelet, and grain yield. The phenotypic correlation between grain yield, plant height and number of grains per spikelet were positive and highly significant and the phenotypic correlation between plant height and number of grains per spikelet were nonsignificant except for the cross C-3 x Vican-71 for which it was positive and significant. The results suggest dual it will be possible to select plant types which combine semidwarf height, large number of grains per spikelet and high yield potential; however, large F2 population will be required to ensure the frequency of desired recombinants.Foram estimados os valores da herdabilidade referentes a altura das plantas de trigo (Triticum aestivum L.), número de grãos por espigueta e produção de grãos, bem como as correlações de ambiente, fenotípicas e genéticas, entre essas características. Os estudos foram realizados em cruzamentos entre a cultivar C-3, de porte alto, e as cultivares Tordo, Vican-71 e Olesen, de porte anão, e Siete Cerros, de porte semi-anão. Os valores da herdabilidade em sentido amplo referentes à altura das plantas e ao número de grãos por espigueta foram médios (0,525 e 0,459, respectivamente) e o valor referente à produção de grãos foi baixo (0,255). Os valores de herdabilidade no sentido restrito foram de 0,815; 0,396 e 0,170, e os coeficientes de determinação foram de 0,615**; 0,460** e 0,174, respectivamente, para altura das plantas, número de grãos por espigueta e produção de grãos. As correlações fenotípicas entre a produção de grãos, altura das plantas e número de grãos por espigueta foram positivas e significativas, e aquelas entre altura de plantas e número de grãos por espigueta foram não-significativas, com exceção da verificada para cruzamento C-3 x Vican-71, que foi positiva e significativa. Os resultados sugerem ser possível selecionar plantas que combinem porte médio, maior número de grãos por espigueta e grande potencial produtivo, desde que sejam proporcionadas grandes populações F2, visando a ocorrência dos recombinantes desejáveis.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCamargo, Carlos Eduardo de OliveiraRamos, Valdir Josué2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16612Pesquisa Agropecuaria Brasileira; v.24, n.12, dez. 1989; 1513-1521Pesquisa Agropecuária Brasileira; v.24, n.12, dez. 1989; 1513-15211678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16612/10899info:eu-repo/semantics/openAccess2014-09-01T18:34:05Zoai:ojs.seer.sct.embrapa.br:article/16612Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-01T18:34:05Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat
Herdabilidades e associações entre número de grãos por espigueta altura das plantas e produção de grãos em populações híbridas de trigo envolvendo diferentes fontes de nanismo
title Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat
spellingShingle Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat
Camargo, Carlos Eduardo de Oliveira
Triticum aestivum; tall plant type; semidwarf type; dwarf type; heritability; phenotypic correlation
Triricum aestivum; porte alto; porte anão; porte semi-anão; herdabilidade; correlações fenotípicas.
title_short Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat
title_full Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat
title_fullStr Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat
title_full_unstemmed Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat
title_sort Heritability and associations between plant height, number of grain per spikelet and grain yield in hybrid populations involving different sources of dwarfism in wheat
author Camargo, Carlos Eduardo de Oliveira
author_facet Camargo, Carlos Eduardo de Oliveira
Ramos, Valdir Josué
author_role author
author2 Ramos, Valdir Josué
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Camargo, Carlos Eduardo de Oliveira
Ramos, Valdir Josué
dc.subject.por.fl_str_mv Triticum aestivum; tall plant type; semidwarf type; dwarf type; heritability; phenotypic correlation
Triricum aestivum; porte alto; porte anão; porte semi-anão; herdabilidade; correlações fenotípicas.
topic Triticum aestivum; tall plant type; semidwarf type; dwarf type; heritability; phenotypic correlation
Triricum aestivum; porte alto; porte anão; porte semi-anão; herdabilidade; correlações fenotípicas.
description The values for grain yield, number of grains per spikelet, and height of wheal planta (Triticum aeslivum L.) were estimated, as well as the environmental, phenotypic and genetic correlations between these characteristics. The experiment was carried out at the Itararé Experiment Station, in Itararé, SP, Brazil, on crosses of the standard height cultivar C-3 with the semi-dwarf cultivar Siete Cerros, and the dwarf cultivars Tordo, Vican-71 and Olesen. Broad sense heritability estimates for plant height and number of grain per spikelet were medium (0.525 and 0.459, respectively), and for grain yield it was low (0.255). Narrow sense heritability estimates were 0.815, 0.396 and 0.170, and the coefficients of determination were 0.615**, 0.460** and 0.174, respectively, for plant height, number of grains per spikelet, and grain yield. The phenotypic correlation between grain yield, plant height and number of grains per spikelet were positive and highly significant and the phenotypic correlation between plant height and number of grains per spikelet were nonsignificant except for the cross C-3 x Vican-71 for which it was positive and significant. The results suggest dual it will be possible to select plant types which combine semidwarf height, large number of grains per spikelet and high yield potential; however, large F2 population will be required to ensure the frequency of desired recombinants.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-17
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16612
url https://seer.sct.embrapa.br/index.php/pab/article/view/16612
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16612/10899
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.24, n.12, dez. 1989; 1513-1521
Pesquisa Agropecuária Brasileira; v.24, n.12, dez. 1989; 1513-1521
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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