Genetic gain as a result of corn cultivars annual substitution

Detalhes bibliográficos
Autor(a) principal: Storck, Lindolfo
Data de Publicação: 2005
Outros Autores: Bisognin, Dílson Antônio, Filho, Alberto Cargnelutti
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/7040
Resumo: Corn (Zea mays) cultivars are usually replaced a few years after release. The objective of this study was to evaluate a proposed hypothesis test to determine if the annually cultivars replacements, in comparative field trials of recommended corn cultivars, result in genetic gain of grain yield. Comparative field trials of super early, early and normal corn cultivars were carried out during 1998/1999, 1999/2000, 2000/2001 and 2001/2002 grown seasons. The experimental design was a complete randomized block with three replications. Each plot had two rows of 5 m separated by 0.8 m. Grain yield genetic gain was estimated by the Vencovsky et al. method. Genetic gain significance was verified with the proposed hypothesis test. The annual replacement of corn cultivars is a dynamic process that not always result in genetic gain of grain yield.
id EMBRAPA-4_ec8095701fd594cb1180e03e966d1445
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/7040
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Genetic gain as a result of corn cultivars annual substitutionGanho genético decorrente da substituição anual de cultivares de milhoZea mays; breeding; hypothesis testZea mays; melhoramento; teste de hipótese Corn (Zea mays) cultivars are usually replaced a few years after release. The objective of this study was to evaluate a proposed hypothesis test to determine if the annually cultivars replacements, in comparative field trials of recommended corn cultivars, result in genetic gain of grain yield. Comparative field trials of super early, early and normal corn cultivars were carried out during 1998/1999, 1999/2000, 2000/2001 and 2001/2002 grown seasons. The experimental design was a complete randomized block with three replications. Each plot had two rows of 5 m separated by 0.8 m. Grain yield genetic gain was estimated by the Vencovsky et al. method. Genetic gain significance was verified with the proposed hypothesis test. The annual replacement of corn cultivars is a dynamic process that not always result in genetic gain of grain yield.Cultivares de milho (Zea mays) são normalmente substituídas alguns anos após a indicação para cultivo. Os objetivos deste trabalho foram desenvolver e avaliar um teste de hipótese para determinar se as substituições anuais de cultivares, nos ensaios de competição de cultivares indicadas de milho, resultam em ganho genético para produtividade de grãos. Os ensaios de competição de cultivares de milho superprecoce, precoce e normal foram conduzidos nos anos agrícolas de 1998/1999, 1999/2000, 2000/2001 e 2001/2002. O delineamento experimental foi em blocos ao acaso, com três repetições. Cada parcela foi formada por duas fileiras de 5 m de comprimento, com espaçamento de 0,8 m. O ganho genético, quanto à produtividade de grãos, foi estimado pelo método proposto por Vencovsky et al., e a significância verificada pelo teste de hipótese proposto neste trabalho. As substituições anuais de cultivares de milho são dinâmicas e nem sempre resultam em ganho genético para produtividade de grãos.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraStorck, LindolfoBisognin, Dílson AntônioFilho, Alberto Cargnelutti2005-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7040Pesquisa Agropecuaria Brasileira; v.40, n.9, set. 2005; 881-886Pesquisa Agropecuária Brasileira; v.40, n.9, set. 2005; 881-8861678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7040/4088info:eu-repo/semantics/openAccess2014-07-18T17:31:04Zoai:ojs.seer.sct.embrapa.br:article/7040Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-18T17:31:04Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic gain as a result of corn cultivars annual substitution
Ganho genético decorrente da substituição anual de cultivares de milho
title Genetic gain as a result of corn cultivars annual substitution
spellingShingle Genetic gain as a result of corn cultivars annual substitution
Storck, Lindolfo
Zea mays; breeding; hypothesis test
Zea mays; melhoramento; teste de hipótese
title_short Genetic gain as a result of corn cultivars annual substitution
title_full Genetic gain as a result of corn cultivars annual substitution
title_fullStr Genetic gain as a result of corn cultivars annual substitution
title_full_unstemmed Genetic gain as a result of corn cultivars annual substitution
title_sort Genetic gain as a result of corn cultivars annual substitution
author Storck, Lindolfo
author_facet Storck, Lindolfo
Bisognin, Dílson Antônio
Filho, Alberto Cargnelutti
author_role author
author2 Bisognin, Dílson Antônio
Filho, Alberto Cargnelutti
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Storck, Lindolfo
Bisognin, Dílson Antônio
Filho, Alberto Cargnelutti
dc.subject.por.fl_str_mv Zea mays; breeding; hypothesis test
Zea mays; melhoramento; teste de hipótese
topic Zea mays; breeding; hypothesis test
Zea mays; melhoramento; teste de hipótese
description Corn (Zea mays) cultivars are usually replaced a few years after release. The objective of this study was to evaluate a proposed hypothesis test to determine if the annually cultivars replacements, in comparative field trials of recommended corn cultivars, result in genetic gain of grain yield. Comparative field trials of super early, early and normal corn cultivars were carried out during 1998/1999, 1999/2000, 2000/2001 and 2001/2002 grown seasons. The experimental design was a complete randomized block with three replications. Each plot had two rows of 5 m separated by 0.8 m. Grain yield genetic gain was estimated by the Vencovsky et al. method. Genetic gain significance was verified with the proposed hypothesis test. The annual replacement of corn cultivars is a dynamic process that not always result in genetic gain of grain yield.
publishDate 2005
dc.date.none.fl_str_mv 2005-09-01
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/7040
url https://seer.sct.embrapa.br/index.php/pab/article/view/7040
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/7040/4088
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.40, n.9, set. 2005; 881-886
Pesquisa Agropecuária Brasileira; v.40, n.9, set. 2005; 881-886
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
_version_ 1793416691057688576

Registros relacionados