CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UNICENTRO |
Texto Completo: | http://tede.unicentro.br:8080/jspui/handle/jspui/927 |
Resumo: | The aim of current study was to evaluate the combining ability of maize inbred lines and hybrids as to agronomic and forage suitability. The 11 inbred lines originated from two base populations and 30 hybrids obtained by a partial diallel cross 6x5 were analyzed in randomized block design with three replications and were carried in three environments, Rio Bonito do Iguaçu in the season 2014/2015, Guarapuava in the season 2014/2015 and Guarapuava in the season 2015/2016. There were used the index Z of combining ability estimates and phenotypic means to select experimental hybrids for forage usage. The following characteristics were evaluated: male flowering (FM), plant height (AP), ear height (AE), grain yield (PG), staygreen (SG), forage’s dry matter yield (PMS), neutral detergent fiber (FDN), acid detergent fiber (FDA), in situ digestibility (DIG) and forage’s digestible dry matter yield (PMSD). There were significant differences between the genotypes for the features, except for the FDA and DIG. There was no significant difference for the interaction genotype x environment only for the DIG. There were also significant difference detected for general combining ability (CGC) and for specific combining ability (CEC) in all characteristics. The hybrids 29-35 x 30-122 and 29-35 x 30-160 were outstanding for agronomic characteristics and grain yield in the three environments, showing high averages, high CEC and suitable CGC by at least one parent. For the forage features the hybrid 29-109 x 30-08 presented the hightest values in the environments AMB1 and AMB3, presenting favorable estimates of CEC for the forage characteristics set. |
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Faria, Marcos Venturahttp://lattes.cnpq.br/0413552050308341Neumann, Mikaelhttp://lattes.cnpq.br/6610260636799744072.903.171-30http://lattes.cnpq.br/0383182562089508Paiva, Elida Auxiliadora Peralta2019-02-21T12:10:32Z2017-02-24Paiva, Elida Auxiliadora Peralta. CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO. 2017. 79 f. Dissertação (Programa de Pós-Graduação em Agronomia - Mestrado) - Universidade Estadual do Centro-Oeste, Guarapuava - PR.http://tede.unicentro.br:8080/jspui/handle/jspui/927The aim of current study was to evaluate the combining ability of maize inbred lines and hybrids as to agronomic and forage suitability. The 11 inbred lines originated from two base populations and 30 hybrids obtained by a partial diallel cross 6x5 were analyzed in randomized block design with three replications and were carried in three environments, Rio Bonito do Iguaçu in the season 2014/2015, Guarapuava in the season 2014/2015 and Guarapuava in the season 2015/2016. There were used the index Z of combining ability estimates and phenotypic means to select experimental hybrids for forage usage. The following characteristics were evaluated: male flowering (FM), plant height (AP), ear height (AE), grain yield (PG), staygreen (SG), forage’s dry matter yield (PMS), neutral detergent fiber (FDN), acid detergent fiber (FDA), in situ digestibility (DIG) and forage’s digestible dry matter yield (PMSD). There were significant differences between the genotypes for the features, except for the FDA and DIG. There was no significant difference for the interaction genotype x environment only for the DIG. There were also significant difference detected for general combining ability (CGC) and for specific combining ability (CEC) in all characteristics. The hybrids 29-35 x 30-122 and 29-35 x 30-160 were outstanding for agronomic characteristics and grain yield in the three environments, showing high averages, high CEC and suitable CGC by at least one parent. For the forage features the hybrid 29-109 x 30-08 presented the hightest values in the environments AMB1 and AMB3, presenting favorable estimates of CEC for the forage characteristics set.O objetivo deste trabalho foi avaliar a capacidade combinatória de 11 linhagens S5 de milho provenientes de duas populações e de 30 híbridos obtidos por cruzamento dialélico parcial 6x5, quanto à aptidão agronômica e forrageira. Os genótipos foram avaliados no delineamento de blocos com os tratamentos casualizados, com três repetições, em três ambientes: Rio Bonito do Iguaçu na safra 2014/2015 (AMB1), Guarapuava-PR na safra 2014/2015(AMB2) e Guarapuava na safra 2015/2016 (AMB3). Empregou-se o índice Z das estimativas da capacidade de combinação e das médias fenotípicas para seleção de híbridos experimentais com aptidão forrageira. As caraterísticas avaliadas foram o florescimento masculino (FM), altura de planta (AP), altura de espiga (AE), produtividade de grãos (PG), staygreen (SG), produtividade de massa seca da forragem (PMS), fibra em detergente neutro (FDN), fibra em detergente ácido (FDA), digestibilidadein situ (DIG) e produtividade da massa seca digestível (PMSD) da forragem. Houve diferenças significativas entre os genótipos para as características, exceto para FDA e DIG. Não houve efeito significativo da interação genótipos x ambientes apenas para a DIG. Também houve efeito significativo da capacidade geral de combinação (CGC) e da capacidade específica de combinação (CEC) para todas as características. Os híbridos 29-35 x 30-122 e 29-35 x 30-160 se destacaram para características agronômicas e para produção de grãos nos três ambientes, por apresentarem maiores médias, elevada CEC e pelo menos um dos genitores terem estimativas de CGC adequadas. Para as características forrageiras o híbrido 29-109 x 30-08 se destacou nos ambientes AMB1 e AMB3, teve estimativas favoráveis da CEC para o conjunto de caracteres forrageiros.Submitted by Fabiano Jucá (fjuca@unicentro.br) on 2019-02-21T12:10:32Z No. of bitstreams: 1 dissertacao_final_elida_peralta.pdf: 5088609 bytes, checksum: 2fc845ec5022b9cecfc7297e9914a728 (MD5)Made available in DSpace on 2019-02-21T12:10:32Z (GMT). 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dc.title.por.fl_str_mv |
CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO |
dc.title.alternative.eng.fl_str_mv |
Combining ability of forage maize's lineages and hybrids selection |
title |
CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO |
spellingShingle |
CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO Paiva, Elida Auxiliadora Peralta Milho híbrido índice Z índice de seleção digestibilidade análises dialélica maize partial diallel diallelic analysis forage corn CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO |
title_full |
CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO |
title_fullStr |
CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO |
title_full_unstemmed |
CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO |
title_sort |
CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO |
author |
Paiva, Elida Auxiliadora Peralta |
author_facet |
Paiva, Elida Auxiliadora Peralta |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Faria, Marcos Ventura |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0413552050308341 |
dc.contributor.advisor-co1.fl_str_mv |
Neumann, Mikael |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/6610260636799744 |
dc.contributor.authorID.fl_str_mv |
072.903.171-30 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0383182562089508 |
dc.contributor.author.fl_str_mv |
Paiva, Elida Auxiliadora Peralta |
contributor_str_mv |
Faria, Marcos Ventura Neumann, Mikael |
dc.subject.por.fl_str_mv |
Milho híbrido índice Z índice de seleção digestibilidade análises dialélica |
topic |
Milho híbrido índice Z índice de seleção digestibilidade análises dialélica maize partial diallel diallelic analysis forage corn CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
maize partial diallel diallelic analysis forage corn |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::AGRONOMIA |
description |
The aim of current study was to evaluate the combining ability of maize inbred lines and hybrids as to agronomic and forage suitability. The 11 inbred lines originated from two base populations and 30 hybrids obtained by a partial diallel cross 6x5 were analyzed in randomized block design with three replications and were carried in three environments, Rio Bonito do Iguaçu in the season 2014/2015, Guarapuava in the season 2014/2015 and Guarapuava in the season 2015/2016. There were used the index Z of combining ability estimates and phenotypic means to select experimental hybrids for forage usage. The following characteristics were evaluated: male flowering (FM), plant height (AP), ear height (AE), grain yield (PG), staygreen (SG), forage’s dry matter yield (PMS), neutral detergent fiber (FDN), acid detergent fiber (FDA), in situ digestibility (DIG) and forage’s digestible dry matter yield (PMSD). There were significant differences between the genotypes for the features, except for the FDA and DIG. There was no significant difference for the interaction genotype x environment only for the DIG. There were also significant difference detected for general combining ability (CGC) and for specific combining ability (CEC) in all characteristics. The hybrids 29-35 x 30-122 and 29-35 x 30-160 were outstanding for agronomic characteristics and grain yield in the three environments, showing high averages, high CEC and suitable CGC by at least one parent. For the forage features the hybrid 29-109 x 30-08 presented the hightest values in the environments AMB1 and AMB3, presenting favorable estimates of CEC for the forage characteristics set. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-02-24 |
dc.date.accessioned.fl_str_mv |
2019-02-21T12:10:32Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
Paiva, Elida Auxiliadora Peralta. CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO. 2017. 79 f. Dissertação (Programa de Pós-Graduação em Agronomia - Mestrado) - Universidade Estadual do Centro-Oeste, Guarapuava - PR. |
dc.identifier.uri.fl_str_mv |
http://tede.unicentro.br:8080/jspui/handle/jspui/927 |
identifier_str_mv |
Paiva, Elida Auxiliadora Peralta. CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE MILHO FORRAGEIRO. 2017. 79 f. Dissertação (Programa de Pós-Graduação em Agronomia - Mestrado) - Universidade Estadual do Centro-Oeste, Guarapuava - PR. |
url |
http://tede.unicentro.br:8080/jspui/handle/jspui/927 |
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por |
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por |
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dc.relation.cnpq.fl_str_mv |
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2075167498588264571 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual do Centro-Oeste |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Agronomia (Mestrado) |
dc.publisher.initials.fl_str_mv |
UNICENTRO |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Unicentro::Departamento de Agronomia |
publisher.none.fl_str_mv |
Universidade Estadual do Centro-Oeste |
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