COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ??
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista de Ciências Agrárias (Belém. Online) |
Texto Completo: | https://ajaes.ufra.edu.br/index.php/ajaes/article/view/157 |
Resumo: | The objective of this study is to evaluate the general and specific combining ability of maize genotypes in order to identify genotypes for the formation of base population for the improvement in conditions of low soil fertility in the state of Tocantins. Seven parents were used in diallel cross with the use of method 4 of Griffing, 21 experimental hybrids were obtained. The experimental design was a randomized block design with three replications. The crosses involving the cultivars XB2271 and XB2270 with cultivar AS2449 were considered the most promising, highest CEC values for the traits number of ears, ear weight and grain weight being watched, and they involve the parent AS2449, which is what showed higher values of GCA. The results show the importance of plant breeding in identifying parents for the formation of increasingly populations adapted to conditions in a region and the identification of hybrid combinations that best express heterosis. |
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Revista de Ciências Agrárias (Belém. Online) |
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COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ??CAPACIDADE DE COMBINAÇÃO DE GENÓTIPOS DE MILHO PARA SOLOS COM BAIXO NíVEIS DE FERTILIDADEThe objective of this study is to evaluate the general and specific combining ability of maize genotypes in order to identify genotypes for the formation of base population for the improvement in conditions of low soil fertility in the state of Tocantins. Seven parents were used in diallel cross with the use of method 4 of Griffing, 21 experimental hybrids were obtained. The experimental design was a randomized block design with three replications. The crosses involving the cultivars XB2271 and XB2270 with cultivar AS2449 were considered the most promising, highest CEC values for the traits number of ears, ear weight and grain weight being watched, and they involve the parent AS2449, which is what showed higher values of GCA. The results show the importance of plant breeding in identifying parents for the formation of increasingly populations adapted to conditions in a region and the identification of hybrid combinations that best express heterosis.O objetivo deste trabalho é avaliar a capacidade geral e específica de combinação de genótipos de milho visando à identificação de genótipos para a formação de população base para o melhoramento em condições de baixo nível de fertilidade de solo no estado do Tocantins. Foram utilizados sete genitores em cruzamento dialélico com o emprego do método 4 de Griffing, sendo obtidos 21 híbridos experimentais. O delineamento experimental foi o de blocos ao acaso com três repetições. Os cruzamentos envolvendo as cultivares XB2271 e XB2270 com a cultivar AS2449 foram considerados os mais promissores, sendo observados maiores valores de CEC para os caracteres número de espigas, peso de espigas e peso de grãos, e por envolverem o genitor AS2449, que foi o que apresentou maiores valores de CGC. Os resultados obtidos evidenciam a importância do melhoramento vegetal na identificação de genitores para a formação de populações cada vez mais adaptadas às condições de determinada região e na identificação de combinações híbridas que melhor expressam a heterose.Universidade Federal Rural da Amazônia/UFRA2011-03-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/157Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 50 No 1 (2008): RCA; 23 - 34Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 50 n. 1 (2008): RCA; 23 - 342177-87601517-591Xreponame:Revista de Ciências Agrárias (Belém. Online)instname:Universidade Federal Rural da Amazônia (UFRA)instacron:UFRAporhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/157/66Coimbra, Ronaldo RodriguesMartins, Elainy Cristina AlvesMiranda, Glauco VieiraNaoe, Lucas KoshyCardoso, Expedito AlvesArchangelo, Eliane Reginainfo:eu-repo/semantics/openAccess2018-12-18T18:38:44Zoai:ojs.www.periodicos.ufra.edu.br:article/157Revistahttps://ajaes.ufra.edu.br/index.php/ajaes/PUBhttps://ajaes.ufra.edu.br/index.php/ajaes/oaiallan.lobato@ufra.edu.br || ajaes.suporte@gmail.com2177-87601517-591Xopendoar:2018-12-18T18:38:44Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA)false |
dc.title.none.fl_str_mv |
COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ?? CAPACIDADE DE COMBINAÇÃO DE GENÓTIPOS DE MILHO PARA SOLOS COM BAIXO NíVEIS DE FERTILIDADE |
title |
COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ?? |
spellingShingle |
COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ?? Coimbra, Ronaldo Rodrigues |
title_short |
COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ?? |
title_full |
COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ?? |
title_fullStr |
COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ?? |
title_full_unstemmed |
COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ?? |
title_sort |
COMBINING ABILITY corn genotypes FOR SOILS WITH LOW LEVELS OF FERTILITY Ní ?? |
author |
Coimbra, Ronaldo Rodrigues |
author_facet |
Coimbra, Ronaldo Rodrigues Martins, Elainy Cristina Alves Miranda, Glauco Vieira Naoe, Lucas Koshy Cardoso, Expedito Alves Archangelo, Eliane Regina |
author_role |
author |
author2 |
Martins, Elainy Cristina Alves Miranda, Glauco Vieira Naoe, Lucas Koshy Cardoso, Expedito Alves Archangelo, Eliane Regina |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Coimbra, Ronaldo Rodrigues Martins, Elainy Cristina Alves Miranda, Glauco Vieira Naoe, Lucas Koshy Cardoso, Expedito Alves Archangelo, Eliane Regina |
description |
The objective of this study is to evaluate the general and specific combining ability of maize genotypes in order to identify genotypes for the formation of base population for the improvement in conditions of low soil fertility in the state of Tocantins. Seven parents were used in diallel cross with the use of method 4 of Griffing, 21 experimental hybrids were obtained. The experimental design was a randomized block design with three replications. The crosses involving the cultivars XB2271 and XB2270 with cultivar AS2449 were considered the most promising, highest CEC values for the traits number of ears, ear weight and grain weight being watched, and they involve the parent AS2449, which is what showed higher values of GCA. The results show the importance of plant breeding in identifying parents for the formation of increasingly populations adapted to conditions in a region and the identification of hybrid combinations that best express heterosis. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-28 |
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://ajaes.ufra.edu.br/index.php/ajaes/article/view/157 |
url |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/157 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/157/66 |
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 |
Universidade Federal Rural da Amazônia/UFRA |
publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
dc.source.none.fl_str_mv |
Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 50 No 1 (2008): RCA; 23 - 34 Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 50 n. 1 (2008): RCA; 23 - 34 2177-8760 1517-591X reponame:Revista de Ciências Agrárias (Belém. Online) instname:Universidade Federal Rural da Amazônia (UFRA) instacron:UFRA |
instname_str |
Universidade Federal Rural da Amazônia (UFRA) |
instacron_str |
UFRA |
institution |
UFRA |
reponame_str |
Revista de Ciências Agrárias (Belém. Online) |
collection |
Revista de Ciências Agrárias (Belém. Online) |
repository.name.fl_str_mv |
Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA) |
repository.mail.fl_str_mv |
allan.lobato@ufra.edu.br || ajaes.suporte@gmail.com |
_version_ |
1797231626373038080 |