Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq.
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4067/S0718-58392019000400547 http://hdl.handle.net/11449/194930 |
Resumo: | In experiments with selection of perennial plants, the initial performance is expected to be maintained throughout the productive life. The probability of repeating the agronomic response can be evaluated by the repeatability coefficient. The objective was to estimate repeatability coefficients of agronomic characteristics in Panicum maximum Jacq. using different methods and identify the best combinations between harvests according to the genotypic stabilization. Seventeen genotypes were evaluated in a randomized complete block design with three replicates. The coefficients of repeatability were estimated by the methods: ANOVA, structural analysis based on the mean of the correlation coefficients (SACOR), analysis of principal components based on the covariance matrix (PCCOV) and correlation matrix (PCCOR). In the genotypic stabilization, coefficients estimated by ANOVA and PCCOR were used. For total DM, repeatability coefficients ranged from 0.3500 to 0.4300 by the ANOVA and PCCOR methods, respectively. High repeatability coefficients were found for the characteristic leaf DM, while low coefficients were observed for leaf and stem percentages and leaf:stem ratio. For the genotypic stabilization of total DM and leaf:stem ratio, the best coefficients were observed for the combination of harvests 5 to 8. There are variations in the estimate of repeatability by different methods and the highest coefficients were those of the principal components based on the correlation and covariance matrices. For the genotypic stabilization, the best coefficients of repeatability and determination were observed for the harvests performed in the second rainy period. |
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Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq.Forageleaf:stem ratiorepeated measuresIn experiments with selection of perennial plants, the initial performance is expected to be maintained throughout the productive life. The probability of repeating the agronomic response can be evaluated by the repeatability coefficient. The objective was to estimate repeatability coefficients of agronomic characteristics in Panicum maximum Jacq. using different methods and identify the best combinations between harvests according to the genotypic stabilization. Seventeen genotypes were evaluated in a randomized complete block design with three replicates. The coefficients of repeatability were estimated by the methods: ANOVA, structural analysis based on the mean of the correlation coefficients (SACOR), analysis of principal components based on the covariance matrix (PCCOV) and correlation matrix (PCCOR). In the genotypic stabilization, coefficients estimated by ANOVA and PCCOR were used. For total DM, repeatability coefficients ranged from 0.3500 to 0.4300 by the ANOVA and PCCOR methods, respectively. High repeatability coefficients were found for the characteristic leaf DM, while low coefficients were observed for leaf and stem percentages and leaf:stem ratio. For the genotypic stabilization of total DM and leaf:stem ratio, the best coefficients were observed for the combination of harvests 5 to 8. There are variations in the estimate of repeatability by different methods and the highest coefficients were those of the principal components based on the correlation and covariance matrices. For the genotypic stabilization, the best coefficients of repeatability and determination were observed for the harvests performed in the second rainy period.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Pro-reitoria de Pesquisa e Pos-graduacao from Universidade Federal de Minas GeraisUniv Estadual Paulista, Via Acesso Prof Paulo Donato Castelane, Jaboticabal, SP, BrazilUniv Fed Sao Joao del Rei, Ave Visconde do Rio Preto S-N, Sao Joao Del Rei, MG, BrazilUniv Fed Minas Gerais, Ave Univ 1000, Montes Claros, MG, BrazilUniv Estadual Sudoeste Bahia, Praca Primavera 40, Itapetinga, BA, BrazilEmbrapa Gado Corte, Empresa Brasileira Pesquisa Agr, Campo Grande, MS, BrazilUniv Sao Paulo, Av Padua Dias 11,Cx Postal 9, Piracieaba, SP, BrazilUniv Fed Vales Jequitinhonha & Mucuri, Rodovia MGT 367 Km 583,5000 Alto Jacuba, Diamantina, MG, BrazilUniv Estadual Paulista, Via Acesso Prof Paulo Donato Castelane, Jaboticabal, SP, BrazilCAPES: 001Inst Investigaciones AgropecuariasUniversidade Estadual Paulista (Unesp)Univ Fed Sao Joao del ReiUniversidade Federal de Minas Gerais (UFMG)Univ Estadual Sudoeste BahiaEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Universidade de São Paulo (USP)Universidade Federal de Viçosa (UFV)Ferreira, Mariane Rodrigues [UNESP]Martuscello, Janina AzevedoSantos Braz, Thiago Gomes dosNascimento, Artur AmaralJank, LianaAssis, Juliana Aparecida deAlmeida, Otavio Goulart deReis, Gabriel de AssisSantos, Marcia VitoriaSantos, Mateus Figueiredo2020-12-10T16:59:00Z2020-12-10T16:59:00Z2019-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article547-556http://dx.doi.org/10.4067/S0718-58392019000400547Chilean Journal Of Agricultural Research. Chillan: Inst Investigaciones Agropecuarias, v. 79, n. 4, p. 547-556, 2019.0718-5839http://hdl.handle.net/11449/19493010.4067/S0718-58392019000400547WOS:000492756200005Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengChilean Journal Of Agricultural Researchinfo:eu-repo/semantics/openAccess2021-10-23T02:05:44Zoai:repositorio.unesp.br:11449/194930Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T02:05:44Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. |
title |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. |
spellingShingle |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. Ferreira, Mariane Rodrigues [UNESP] Forage leaf:stem ratio repeated measures |
title_short |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. |
title_full |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. |
title_fullStr |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. |
title_full_unstemmed |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. |
title_sort |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. |
author |
Ferreira, Mariane Rodrigues [UNESP] |
author_facet |
Ferreira, Mariane Rodrigues [UNESP] Martuscello, Janina Azevedo Santos Braz, Thiago Gomes dos Nascimento, Artur Amaral Jank, Liana Assis, Juliana Aparecida de Almeida, Otavio Goulart de Reis, Gabriel de Assis Santos, Marcia Vitoria Santos, Mateus Figueiredo |
author_role |
author |
author2 |
Martuscello, Janina Azevedo Santos Braz, Thiago Gomes dos Nascimento, Artur Amaral Jank, Liana Assis, Juliana Aparecida de Almeida, Otavio Goulart de Reis, Gabriel de Assis Santos, Marcia Vitoria Santos, Mateus Figueiredo |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Univ Fed Sao Joao del Rei Universidade Federal de Minas Gerais (UFMG) Univ Estadual Sudoeste Bahia Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Universidade de São Paulo (USP) Universidade Federal de Viçosa (UFV) |
dc.contributor.author.fl_str_mv |
Ferreira, Mariane Rodrigues [UNESP] Martuscello, Janina Azevedo Santos Braz, Thiago Gomes dos Nascimento, Artur Amaral Jank, Liana Assis, Juliana Aparecida de Almeida, Otavio Goulart de Reis, Gabriel de Assis Santos, Marcia Vitoria Santos, Mateus Figueiredo |
dc.subject.por.fl_str_mv |
Forage leaf:stem ratio repeated measures |
topic |
Forage leaf:stem ratio repeated measures |
description |
In experiments with selection of perennial plants, the initial performance is expected to be maintained throughout the productive life. The probability of repeating the agronomic response can be evaluated by the repeatability coefficient. The objective was to estimate repeatability coefficients of agronomic characteristics in Panicum maximum Jacq. using different methods and identify the best combinations between harvests according to the genotypic stabilization. Seventeen genotypes were evaluated in a randomized complete block design with three replicates. The coefficients of repeatability were estimated by the methods: ANOVA, structural analysis based on the mean of the correlation coefficients (SACOR), analysis of principal components based on the covariance matrix (PCCOV) and correlation matrix (PCCOR). In the genotypic stabilization, coefficients estimated by ANOVA and PCCOR were used. For total DM, repeatability coefficients ranged from 0.3500 to 0.4300 by the ANOVA and PCCOR methods, respectively. High repeatability coefficients were found for the characteristic leaf DM, while low coefficients were observed for leaf and stem percentages and leaf:stem ratio. For the genotypic stabilization of total DM and leaf:stem ratio, the best coefficients were observed for the combination of harvests 5 to 8. There are variations in the estimate of repeatability by different methods and the highest coefficients were those of the principal components based on the correlation and covariance matrices. For the genotypic stabilization, the best coefficients of repeatability and determination were observed for the harvests performed in the second rainy period. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-01 2020-12-10T16:59:00Z 2020-12-10T16:59:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4067/S0718-58392019000400547 Chilean Journal Of Agricultural Research. Chillan: Inst Investigaciones Agropecuarias, v. 79, n. 4, p. 547-556, 2019. 0718-5839 http://hdl.handle.net/11449/194930 10.4067/S0718-58392019000400547 WOS:000492756200005 |
url |
http://dx.doi.org/10.4067/S0718-58392019000400547 http://hdl.handle.net/11449/194930 |
identifier_str_mv |
Chilean Journal Of Agricultural Research. Chillan: Inst Investigaciones Agropecuarias, v. 79, n. 4, p. 547-556, 2019. 0718-5839 10.4067/S0718-58392019000400547 WOS:000492756200005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Chilean Journal Of Agricultural Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
547-556 |
dc.publisher.none.fl_str_mv |
Inst Investigaciones Agropecuarias |
publisher.none.fl_str_mv |
Inst Investigaciones Agropecuarias |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965508319051776 |