Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District
Autor(a) principal: | |
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Data de Publicação: | 2024 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/12037 |
Resumo: | Barley is an important crop for Brazil and an advantageous alternative for irrigated cultivation in the Brazilian Savanna. The present study aimed to characterize and estimate genetic, phenotypic, and environmental parameters and select genotypes from the Embrapa Cerrados irrigated barley working collection. The experiment was established in Randomized Blocks with four replications under irrigation in Embrapa Cerrados, Planaltina-DF. The traits evaluated were grain yield, commercial classification of first grains, 1000-seed weight, plant height, lodging, and cycle. The genetic parameters and correlations between the traits evaluated were obtained. High values of heritability, in a broad sense, were verified. The high coefficients of genotypic variance and the high selective accuracy obtained corroborate the favorable environmental condition for the selection of genotypes. It was verified that the genotypic correlations were higher than the phenotypic correlation coefficients, showing a greater contribution of genetic factors in the expression of the traits. Earlier genotypes had higher grain yields, first-class commercial classification, 1000-seed weight, and height. There was a strong positive correlation between the commercial classification of first grains and 1000-seed weight. Genotypes PFC 2005143, PFC 2006134, and PFC 2004212 were selected for use in crossbreeding blocks within the Brazilian irrigated barley breeding program. |
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Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal DistrictEstimativas de parâmetros genéticos em genótipos de cevada irrigada no cerrado brasileiro do Distrito FederalHordeum vulgare L. Herdabilidade. Melhoramento genético.Hordeum vulgare L. Heritability. Genetic improvement. Barley is an important crop for Brazil and an advantageous alternative for irrigated cultivation in the Brazilian Savanna. The present study aimed to characterize and estimate genetic, phenotypic, and environmental parameters and select genotypes from the Embrapa Cerrados irrigated barley working collection. The experiment was established in Randomized Blocks with four replications under irrigation in Embrapa Cerrados, Planaltina-DF. The traits evaluated were grain yield, commercial classification of first grains, 1000-seed weight, plant height, lodging, and cycle. The genetic parameters and correlations between the traits evaluated were obtained. High values of heritability, in a broad sense, were verified. The high coefficients of genotypic variance and the high selective accuracy obtained corroborate the favorable environmental condition for the selection of genotypes. It was verified that the genotypic correlations were higher than the phenotypic correlation coefficients, showing a greater contribution of genetic factors in the expression of the traits. Earlier genotypes had higher grain yields, first-class commercial classification, 1000-seed weight, and height. There was a strong positive correlation between the commercial classification of first grains and 1000-seed weight. Genotypes PFC 2005143, PFC 2006134, and PFC 2004212 were selected for use in crossbreeding blocks within the Brazilian irrigated barley breeding program.A cevada é uma importante cultura para o Brasil e uma vantajosa alternativa para o cultivo irrigado no Cerrado. O objetivo deste trabalho foi caracterizar, estimar parâmetros genéticos, fenotípicos e ambientais e realizar a seleção de genótipos da coleção de trabalho de cevada irrigada da Embrapa Cerrados. O experimento foi estabelecido em Blocos casualizados com quatro repetições, sob irrigação, na Embrapa Cerrados, Planaltina-DF. As características avaliadas foram: rendimento de grãos, classificação comercial de primeira, peso de mil sementes, altura de planta, acamamento e ciclo. Foram obtidos os parâmetros genéticos e as correlações entre as características avaliadas. Foram verificados altos valores de herdabilidade, em sentido amplo. Os altos coeficientes de variância genotípica e a alta acurácia seletiva obtida corroboram a condição ambiental favorável para a seleção de genótipos. Verificou-se que as correlações genotípicas foram maiores que os coeficientes de correlação fenotípica, evidenciando uma maior contribuição dos fatores genéticos na expressão dos caracteres. Os genótipos mais precoces apresentaram maiores rendimentos de grãos, classificação comercial de primeira, peso de mil sementes e altura. Houve forte correlação positiva entre classificação comercial de primeira e peso de mil sementes. Os genótipos PFC 2005143, PFC 2006134 e PFC 2004212 foram selecionados para uso em blocos de cruzamento dentro do programa brasileiro de melhoramento de cevada irrigada.Universidade Federal Rural do Semi-Árido2024-02-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/1203710.1590/1983-21252024v3712037rcREVISTA CAATINGA; Vol. 37 (2024); e12037Revista Caatinga; v. 37 (2024); e120371983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/12037/11458Copyright (c) 2024 Revista Caatingainfo:eu-repo/semantics/openAccessThomé, Rodolfo DiasAmabile, Renato FernandoSouza, Nara Oliveira SilvaMalaquias, Juaci VitóriaMelo, João Victor Pinheiro2024-04-22T17:59:19Zoai:ojs.periodicos.ufersa.edu.br:article/12037Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:47:07.085387Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District Estimativas de parâmetros genéticos em genótipos de cevada irrigada no cerrado brasileiro do Distrito Federal |
title |
Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District |
spellingShingle |
Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District Thomé, Rodolfo Dias Hordeum vulgare L. Herdabilidade. Melhoramento genético. Hordeum vulgare L. Heritability. Genetic improvement. |
title_short |
Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District |
title_full |
Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District |
title_fullStr |
Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District |
title_full_unstemmed |
Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District |
title_sort |
Genetic parameter estimates in irrigated barley genotypes in the brazilian savanna of the Federal District |
author |
Thomé, Rodolfo Dias |
author_facet |
Thomé, Rodolfo Dias Amabile, Renato Fernando Souza, Nara Oliveira Silva Malaquias, Juaci Vitória Melo, João Victor Pinheiro |
author_role |
author |
author2 |
Amabile, Renato Fernando Souza, Nara Oliveira Silva Malaquias, Juaci Vitória Melo, João Victor Pinheiro |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Thomé, Rodolfo Dias Amabile, Renato Fernando Souza, Nara Oliveira Silva Malaquias, Juaci Vitória Melo, João Victor Pinheiro |
dc.subject.por.fl_str_mv |
Hordeum vulgare L. Herdabilidade. Melhoramento genético. Hordeum vulgare L. Heritability. Genetic improvement. |
topic |
Hordeum vulgare L. Herdabilidade. Melhoramento genético. Hordeum vulgare L. Heritability. Genetic improvement. |
description |
Barley is an important crop for Brazil and an advantageous alternative for irrigated cultivation in the Brazilian Savanna. The present study aimed to characterize and estimate genetic, phenotypic, and environmental parameters and select genotypes from the Embrapa Cerrados irrigated barley working collection. The experiment was established in Randomized Blocks with four replications under irrigation in Embrapa Cerrados, Planaltina-DF. The traits evaluated were grain yield, commercial classification of first grains, 1000-seed weight, plant height, lodging, and cycle. The genetic parameters and correlations between the traits evaluated were obtained. High values of heritability, in a broad sense, were verified. The high coefficients of genotypic variance and the high selective accuracy obtained corroborate the favorable environmental condition for the selection of genotypes. It was verified that the genotypic correlations were higher than the phenotypic correlation coefficients, showing a greater contribution of genetic factors in the expression of the traits. Earlier genotypes had higher grain yields, first-class commercial classification, 1000-seed weight, and height. There was a strong positive correlation between the commercial classification of first grains and 1000-seed weight. Genotypes PFC 2005143, PFC 2006134, and PFC 2004212 were selected for use in crossbreeding blocks within the Brazilian irrigated barley breeding program. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-02-08 |
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://periodicos.ufersa.edu.br/caatinga/article/view/12037 10.1590/1983-21252024v3712037rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/12037 |
identifier_str_mv |
10.1590/1983-21252024v3712037rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/12037/11458 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2024 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2024 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 37 (2024); e12037 Revista Caatinga; v. 37 (2024); e12037 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674030331854848 |