Genetic variability in maize lines for characteristics related to silage yield

Detalhes bibliográficos
Autor(a) principal: Gomes, Maximilian de Souza
Data de Publicação: 2004
Outros Autores: Pinho, Renzo Garcia Von, Ramalho, Magno Antonio Patto, Ferreira, Denys Vitor, Brito, André Humberto de
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/6852
Resumo: Programs to obtain hybrids, should emphasize cultivars with great dry matter yield, silage digestibility and the variation among cultivars in relation to these characteristics. The objective of this work was to evaluate genetic variability of maize lines for characteristics related to silage yield. Thirty-six lines were sown in two periods, November and December, in a simple 6x6 lattice design. Plants were harvested at the hard-farinose grain stage and insiled for 100 days. Dry matter yield and in situ dry matter degradability in silage incubation periods of 24 and 96 hours and percent of fiber in neutral detergent were assessed. There was genetic variability for the traits related to yield and silage quality. The line performance for dry matter degradability and fiber in neutral detergent was similar between sowing periods. The heritability estimated on the mean of the two sowing periods for dry matter degradability was greater than 80% showing the possibility of success in the selection process. The high correlation between incubation periods indicated the possibility of assessing dry matter degradability in 24 hours, offering greater efficiency and speed.
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spelling Genetic variability in maize lines for characteristics related to silage yieldVariabilidade genética em linhagens de milho nas características relacionadas com a produtividade de silagemZea mays; in situ degradability; heritability; correlationZea mays; degradabilidade in situ; herdabilidade; correlaçãoPrograms to obtain hybrids, should emphasize cultivars with great dry matter yield, silage digestibility and the variation among cultivars in relation to these characteristics. The objective of this work was to evaluate genetic variability of maize lines for characteristics related to silage yield. Thirty-six lines were sown in two periods, November and December, in a simple 6x6 lattice design. Plants were harvested at the hard-farinose grain stage and insiled for 100 days. Dry matter yield and in situ dry matter degradability in silage incubation periods of 24 and 96 hours and percent of fiber in neutral detergent were assessed. There was genetic variability for the traits related to yield and silage quality. The line performance for dry matter degradability and fiber in neutral detergent was similar between sowing periods. The heritability estimated on the mean of the two sowing periods for dry matter degradability was greater than 80% showing the possibility of success in the selection process. The high correlation between incubation periods indicated the possibility of assessing dry matter degradability in 24 hours, offering greater efficiency and speed.Em programas que visam à obtenção de híbridos, a ênfase deve ser no desenvolvimento de cultivares com maior produtividade de matéria seca e digestibilidade da silagem e que apresentem variação entre si em relação a esses caracteres. O objetivo deste trabalho foi avaliar a variabilidade genética de linhagens de milho quanto a características relacionadas à produção de silagem. Foram semeadas 36 linhagens em duas épocas (novembro e dezembro), no delineamento de látice simples 6x6. As plantas foram colhidas no estádio de grãos farináceo-duro e ensiladas por 100 dias. Foram determinadas as variáveis produtividade de matéria seca e degradabilidade in situ da matéria seca, em dois períodos de incubação das silagens, 24 e 96 horas, e porcentagem de fibra em detergente neutro. Houve variabilidade genética nos caracteres relacionados à produtividade e qualidade da silagem. O comportamento das linhagens em relação à degradabilidade da matéria seca e fibra em detergente neutro foi semelhante nas diferentes épocas de semeadura. A herdabilidade estimada na média das duas épocas de semeadura em relação à degradabilidade da matéria seca foi superior a 80%, evidenciando a possibilidade de êxito no processo de seleção. A alta correlação entre os dois períodos de incubação indica a possibilidade de se avaliar a degradabilidade da matéria seca no período de 24 horas, permitindo maior eficiência e rapidez.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraGomes, Maximilian de SouzaPinho, Renzo Garcia VonRamalho, Magno Antonio PattoFerreira, Denys VitorBrito, André Humberto de2004-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6852Pesquisa Agropecuaria Brasileira; v.39, n.9, set. 2004; 879-885Pesquisa Agropecuária Brasileira; v.39, n.9, set. 2004; 879-8851678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6852/3908info:eu-repo/semantics/openAccess2014-08-26T18:39:23Zoai:ojs.seer.sct.embrapa.br:article/6852Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-26T18:39:23Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic variability in maize lines for characteristics related to silage yield
Variabilidade genética em linhagens de milho nas características relacionadas com a produtividade de silagem
title Genetic variability in maize lines for characteristics related to silage yield
spellingShingle Genetic variability in maize lines for characteristics related to silage yield
Gomes, Maximilian de Souza
Zea mays; in situ degradability; heritability; correlation
Zea mays; degradabilidade in situ; herdabilidade; correlação
title_short Genetic variability in maize lines for characteristics related to silage yield
title_full Genetic variability in maize lines for characteristics related to silage yield
title_fullStr Genetic variability in maize lines for characteristics related to silage yield
title_full_unstemmed Genetic variability in maize lines for characteristics related to silage yield
title_sort Genetic variability in maize lines for characteristics related to silage yield
author Gomes, Maximilian de Souza
author_facet Gomes, Maximilian de Souza
Pinho, Renzo Garcia Von
Ramalho, Magno Antonio Patto
Ferreira, Denys Vitor
Brito, André Humberto de
author_role author
author2 Pinho, Renzo Garcia Von
Ramalho, Magno Antonio Patto
Ferreira, Denys Vitor
Brito, André Humberto de
author2_role author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Gomes, Maximilian de Souza
Pinho, Renzo Garcia Von
Ramalho, Magno Antonio Patto
Ferreira, Denys Vitor
Brito, André Humberto de
dc.subject.por.fl_str_mv Zea mays; in situ degradability; heritability; correlation
Zea mays; degradabilidade in situ; herdabilidade; correlação
topic Zea mays; in situ degradability; heritability; correlation
Zea mays; degradabilidade in situ; herdabilidade; correlação
description Programs to obtain hybrids, should emphasize cultivars with great dry matter yield, silage digestibility and the variation among cultivars in relation to these characteristics. The objective of this work was to evaluate genetic variability of maize lines for characteristics related to silage yield. Thirty-six lines were sown in two periods, November and December, in a simple 6x6 lattice design. Plants were harvested at the hard-farinose grain stage and insiled for 100 days. Dry matter yield and in situ dry matter degradability in silage incubation periods of 24 and 96 hours and percent of fiber in neutral detergent were assessed. There was genetic variability for the traits related to yield and silage quality. The line performance for dry matter degradability and fiber in neutral detergent was similar between sowing periods. The heritability estimated on the mean of the two sowing periods for dry matter degradability was greater than 80% showing the possibility of success in the selection process. The high correlation between incubation periods indicated the possibility of assessing dry matter degradability in 24 hours, offering greater efficiency and speed.
publishDate 2004
dc.date.none.fl_str_mv 2004-09-01
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/6852
url https://seer.sct.embrapa.br/index.php/pab/article/view/6852
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/6852/3908
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.39, n.9, set. 2004; 879-885
Pesquisa Agropecuária Brasileira; v.39, n.9, set. 2004; 879-885
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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