BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/4971 |
Resumo: | This study aimed to characterize buffel grass accessions of the Cenchrus Germplasm Active Bank (CGAB) from Embrapa Semi-Arid in a morphoagronomic way, checking the descriptors variability and efficiency in accessions on two consecutive cuts. Twenty-five accessions and five buffel grass cultivars were used in randomized complete block design with three replications. Evaluations were conducted after two consecutive cuts, each evaluation performed 90 days after each cut. Characterization was based on 15 quantitative and qualitative morphoagronomic descriptors. Quantitative descriptors were subjected to individual and joint univariate analysis of variance, followed by the Scott-Knott’s test at 5% significance. Yet qualitative descriptors were submitted to descriptive analysis. Both quantitative and qualitative descriptors were grouped based on the Gower algorithm for divergence analysis. A dendrogram and calculations of the characters relative importance for divergence were established. Genotype and cutting effects were significant for almost all descriptors in the joint analysis. This result indicates a genetic variability between genotypes and, regarding the cut, it indicates mainly differences in growth rate of each genotype in each cutting season. Genotypes were separated into three groups, which showed good genotype variation. The number of tillers per clump, followed by number of inflorescence and color of seeds, were the most relevant characters in genotype separation. |
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BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANKCARACTERIZAÇÃO MORFOAGRONÔMICA DE CAPIM BUFFEL DO BANCO ATIVO DE GERMOPLASMA DE CenchrusGenetic resources. Genetic diversity. Forage grasses. Genotypes x environments interaction.Cenchrus ciliaris. Recursos genéticos. Diversidade genética. Gramíneas forrageiras. Interação genótipos x ambientes.This study aimed to characterize buffel grass accessions of the Cenchrus Germplasm Active Bank (CGAB) from Embrapa Semi-Arid in a morphoagronomic way, checking the descriptors variability and efficiency in accessions on two consecutive cuts. Twenty-five accessions and five buffel grass cultivars were used in randomized complete block design with three replications. Evaluations were conducted after two consecutive cuts, each evaluation performed 90 days after each cut. Characterization was based on 15 quantitative and qualitative morphoagronomic descriptors. Quantitative descriptors were subjected to individual and joint univariate analysis of variance, followed by the Scott-Knott’s test at 5% significance. Yet qualitative descriptors were submitted to descriptive analysis. Both quantitative and qualitative descriptors were grouped based on the Gower algorithm for divergence analysis. A dendrogram and calculations of the characters relative importance for divergence were established. Genotype and cutting effects were significant for almost all descriptors in the joint analysis. This result indicates a genetic variability between genotypes and, regarding the cut, it indicates mainly differences in growth rate of each genotype in each cutting season. Genotypes were separated into three groups, which showed good genotype variation. The number of tillers per clump, followed by number of inflorescence and color of seeds, were the most relevant characters in genotype separation.O estudo objetivou caracterizar morfoagronomicamente acessos de capim buffel do Banco de Germoplasma de Cenchrus (BGC) da Embrapa Semiárido, verificando a variabilidade e eficiência dos descritores nos acessos em dois cortes consecutivos. Foram utilizados 25 acessos e cinco cultivares de capim buffel em delineamento em blocos casualizados completos com três repetições. As avaliações foram realizadas após dois cortes consecutivos, cada avaliação foi realizada 90 dias após cada corte. A caracterização foi realizada com base em 15 descritores morfoagronômicos quantitativos e qualitativos. Os descritores quantitativos foram submetidos a análise de variância univariada individual e conjunta e, em seguida, aplicado o teste de Scott-Knott a 5% de significância. Os descritores qualitativos foram submetidos a análise descritiva. Para as análises de divergência tanto descritores quantitativos quanto qualitativos foram agrupados com base no algoritmo de Gower. Foi estabelecido também um dendrograma e calculada a importância relativa dos caracteres para a divergência. Na análise conjunta, os efeitos de genótipo e corte foram significativos para quase todas os descritores. Esse resultado indica variabilidade genética entre os genótipos e quanto ao corte indica, principalmente, diferenças na velocidade de crescimento de cada genótipo em cada época de corte. Os genótipos foram separados em três grupos demonstrando boa variabilidade entre os genótipos. O número de perfilhos por touceira, seguida por quantidade de inflorescência e cor das sementes foram os caracteres de maior relevância na separação dos genótipos.Universidade Federal Rural do Semi-Árido2017-01-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/497110.1590/1983-21252017v30n224rcREVISTA CAATINGA; Vol. 30 No. 2 (2017); 487-495Revista Caatinga; v. 30 n. 2 (2017); 487-4951983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/4971/pdfBruno, Leila Regina Gomes PassosAntonio, Rafaela PriscilaAssis, José Geraldo de AquinoMoreira, José NiltonLira, Irlane Cristine de Souza Andradeinfo:eu-repo/semantics/openAccess2023-07-20T10:58:27Zoai:ojs.periodicos.ufersa.edu.br:article/4971Revistahttps://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:2024-04-29T09:46:20.255672Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK CARACTERIZAÇÃO MORFOAGRONÔMICA DE CAPIM BUFFEL DO BANCO ATIVO DE GERMOPLASMA DE Cenchrus |
title |
BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK |
spellingShingle |
BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK Bruno, Leila Regina Gomes Passos Genetic resources. Genetic diversity. Forage grasses. Genotypes x environments interaction. Cenchrus ciliaris. Recursos genéticos. Diversidade genética. Gramíneas forrageiras. Interação genótipos x ambientes. |
title_short |
BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK |
title_full |
BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK |
title_fullStr |
BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK |
title_full_unstemmed |
BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK |
title_sort |
BUFFEL GRASS MORPHOAGRONOMIC CHARACTERIZATION FROM Cenchrus GERMPLASM ACTIVE BANK |
author |
Bruno, Leila Regina Gomes Passos |
author_facet |
Bruno, Leila Regina Gomes Passos Antonio, Rafaela Priscila Assis, José Geraldo de Aquino Moreira, José Nilton Lira, Irlane Cristine de Souza Andrade |
author_role |
author |
author2 |
Antonio, Rafaela Priscila Assis, José Geraldo de Aquino Moreira, José Nilton Lira, Irlane Cristine de Souza Andrade |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Bruno, Leila Regina Gomes Passos Antonio, Rafaela Priscila Assis, José Geraldo de Aquino Moreira, José Nilton Lira, Irlane Cristine de Souza Andrade |
dc.subject.por.fl_str_mv |
Genetic resources. Genetic diversity. Forage grasses. Genotypes x environments interaction. Cenchrus ciliaris. Recursos genéticos. Diversidade genética. Gramíneas forrageiras. Interação genótipos x ambientes. |
topic |
Genetic resources. Genetic diversity. Forage grasses. Genotypes x environments interaction. Cenchrus ciliaris. Recursos genéticos. Diversidade genética. Gramíneas forrageiras. Interação genótipos x ambientes. |
description |
This study aimed to characterize buffel grass accessions of the Cenchrus Germplasm Active Bank (CGAB) from Embrapa Semi-Arid in a morphoagronomic way, checking the descriptors variability and efficiency in accessions on two consecutive cuts. Twenty-five accessions and five buffel grass cultivars were used in randomized complete block design with three replications. Evaluations were conducted after two consecutive cuts, each evaluation performed 90 days after each cut. Characterization was based on 15 quantitative and qualitative morphoagronomic descriptors. Quantitative descriptors were subjected to individual and joint univariate analysis of variance, followed by the Scott-Knott’s test at 5% significance. Yet qualitative descriptors were submitted to descriptive analysis. Both quantitative and qualitative descriptors were grouped based on the Gower algorithm for divergence analysis. A dendrogram and calculations of the characters relative importance for divergence were established. Genotype and cutting effects were significant for almost all descriptors in the joint analysis. This result indicates a genetic variability between genotypes and, regarding the cut, it indicates mainly differences in growth rate of each genotype in each cutting season. Genotypes were separated into three groups, which showed good genotype variation. The number of tillers per clump, followed by number of inflorescence and color of seeds, were the most relevant characters in genotype separation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-24 |
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/4971 10.1590/1983-21252017v30n224rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/4971 |
identifier_str_mv |
10.1590/1983-21252017v30n224rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/4971/pdf |
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 do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 30 No. 2 (2017); 487-495 Revista Caatinga; v. 30 n. 2 (2017); 487-495 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_ |
1797674025895329792 |