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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
30/12/2019 |
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Data da última atualização: |
30/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FERREIRA, M. R.; MARTUSCELLO, J. A.; BRAZ, T. G. dos S.; NASCIMENTO, A. A.; JANK, L.; ASSIS, J. A. de; ALMEIDA, O. G. de; REIS, G. de A.; SANTOS, M. V.; SANTOS, M. F. |
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Afiliação: |
Mariane Rodrigues Ferreira, Universidade Estadual Paulista - UNESP; Janaina Azevedo Martuscello, Universidade Federal de São João del-Rei; Thiago Gomes dos Santos Braz, Universidade Federal de Minas Gerais; Artur Amaral Nascimento, Universidade Estadual do Sudoeste da Bahia; LIANA JANK, CNPGC; Juliana Aparecida de Assis, Universidade de São Paulo - USP; Otávio Goulart de Almeida, Universidade de São Paulo - USP; Gabriel de Assis Reis, Universidade de São Paulo - USP; Márcia Vitória Santos, Universidade Federal dos Vales do Jequitinhonha e Mucuri; Mateus Figueiredo Santos, Universidade de São Paulo - USP. |
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Título: |
Repeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Chilean Journal of Agricultural Research v. 79, n, 4, October-December, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
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. MenosIn 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 cov... Mostrar Tudo |
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Palavras-Chave: |
Leaf stem ratio; Repeated measures. |
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Thesaurus Nal: |
Forage. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/207998/1/Repeatability-and-genotypic-stability.pdf
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Marc: |
LEADER 02468naa a2200265 a 4500
001 2117946
005 2019-12-30
008 2019 bl uuuu u00u1 u #d
100 1 $aFERREIRA, M. R.
245 $aRepeatability and genotypic stability of agronomic characteristics in Panicum maximum Jacq.$h[electronic resource]
260 $c2019
520 $aIn 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.
650 $aForage
653 $aLeaf stem ratio
653 $aRepeated measures
700 1 $aMARTUSCELLO, J. A.
700 1 $aBRAZ, T. G. dos S.
700 1 $aNASCIMENTO, A. A.
700 1 $aJANK, L.
700 1 $aASSIS, J. A. de
700 1 $aALMEIDA, O. G. de
700 1 $aREIS, G. de A.
700 1 $aSANTOS, M. V.
700 1 $aSANTOS, M. F.
773 $tChilean Journal of Agricultural Research$gv. 79, n, 4, October-December, 2019.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
13/01/2020 |
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Data da última atualização: |
20/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MACHADO, A. R.; PINHO, D. B.; SOARES, D. J.; GOMES, A. A. M.; PEREIRA, O. L. |
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Afiliação: |
Alexandre Reis Machado, Universidade Federal de Pernambuco - UFPE/Departamento de Micologia; Danilo Batista Pinho, Universidade de Brasília - UnB/Departamento de Fitopatologia; DARTANHA JOSE SOARES, CNPA; André Angelo Medeiros Gomes, Universidade Federal de Viçosa - UFV/Departamento de Microbiologia Agrícola; Olinto Liparini Pereira, Universidade Federal de Viçosa - UFV/Departamento de Fitopatologia. |
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Título: |
Bayesian analyses of five gene regions reveal a new phylogenetic species of Macrophomina associated with charcoal rot on oilseed crops in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
European Journal of Plant Pathology, v. 53, p. 89-100, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Macrophomina is a genus belonging to Botryosphaeriaceae that comprises well-known necrotrophic pathogens related to hundreds of plant hosts around the world. Historically, M. phaseolina is the causal agent of charcoal rot in several crops, mainly in tropical and subtropical areas around the world. However, after a recent genetic diversity study using morphological and molecular approaches, which resulted in the epitypification of M. phaseolina, and the description of a new Macrophomina species associated with charcoal rot disease, the hypothesis that other cryptic species could be present under the name M. phaseolina was raised. Previous studies in Brazil revealed a high genetic diversity and different levels of aggressiveness of M. phaseolina isolates associated with charcoal rot in oilseed crops. Thus, the aim of the present study was, through phylogenetic and morphological studies, to determine if isolates of Macrophomina obtained from different oilseed crops represent a single species or distinct taxa. Based on the results obtained, it was possible to identify three different Macrophomina species: M. phaseolina, M. pseudophaseolina and a new phylogenetic species, M. euphorbiicola. This is first report of M. pseudophaseolina in Brazil causing charcoal rot on Arachis hypogaea, Gossypium hirsutum and Ricinus communis and associated with seed decay of Jatropha curcas. In addition, a novel species described in the present study, M. euphorbiicola, is reported as the etiological agent of the charcoal rot on R. communis and Jatropha gossypifolia. MenosMacrophomina is a genus belonging to Botryosphaeriaceae that comprises well-known necrotrophic pathogens related to hundreds of plant hosts around the world. Historically, M. phaseolina is the causal agent of charcoal rot in several crops, mainly in tropical and subtropical areas around the world. However, after a recent genetic diversity study using morphological and molecular approaches, which resulted in the epitypification of M. phaseolina, and the description of a new Macrophomina species associated with charcoal rot disease, the hypothesis that other cryptic species could be present under the name M. phaseolina was raised. Previous studies in Brazil revealed a high genetic diversity and different levels of aggressiveness of M. phaseolina isolates associated with charcoal rot in oilseed crops. Thus, the aim of the present study was, through phylogenetic and morphological studies, to determine if isolates of Macrophomina obtained from different oilseed crops represent a single species or distinct taxa. Based on the results obtained, it was possible to identify three different Macrophomina species: M. phaseolina, M. pseudophaseolina and a new phylogenetic species, M. euphorbiicola. This is first report of M. pseudophaseolina in Brazil causing charcoal rot on Arachis hypogaea, Gossypium hirsutum and Ricinus communis and associated with seed decay of Jatropha curcas. In addition, a novel species described in the present study, M. euphorbiicola, is reported as the etiologica... Mostrar Tudo |
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Palavras-Chave: |
Cryptic species; Soil-borne fungi. |
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Thesaurus NAL: |
Botryosphaeriales; Phylogeny; Plant pathology. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208674/1/Bayesian-analyses-of-five-gene-regions.pdf
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Marc: |
LEADER 02300naa a2200229 a 4500
001 2118666
005 2020-01-20
008 2019 bl uuuu u00u1 u #d
100 1 $aMACHADO, A. R.
245 $aBayesian analyses of five gene regions reveal a new phylogenetic species of Macrophomina associated with charcoal rot on oilseed crops in Brazil.$h[electronic resource]
260 $c2019
520 $aMacrophomina is a genus belonging to Botryosphaeriaceae that comprises well-known necrotrophic pathogens related to hundreds of plant hosts around the world. Historically, M. phaseolina is the causal agent of charcoal rot in several crops, mainly in tropical and subtropical areas around the world. However, after a recent genetic diversity study using morphological and molecular approaches, which resulted in the epitypification of M. phaseolina, and the description of a new Macrophomina species associated with charcoal rot disease, the hypothesis that other cryptic species could be present under the name M. phaseolina was raised. Previous studies in Brazil revealed a high genetic diversity and different levels of aggressiveness of M. phaseolina isolates associated with charcoal rot in oilseed crops. Thus, the aim of the present study was, through phylogenetic and morphological studies, to determine if isolates of Macrophomina obtained from different oilseed crops represent a single species or distinct taxa. Based on the results obtained, it was possible to identify three different Macrophomina species: M. phaseolina, M. pseudophaseolina and a new phylogenetic species, M. euphorbiicola. This is first report of M. pseudophaseolina in Brazil causing charcoal rot on Arachis hypogaea, Gossypium hirsutum and Ricinus communis and associated with seed decay of Jatropha curcas. In addition, a novel species described in the present study, M. euphorbiicola, is reported as the etiological agent of the charcoal rot on R. communis and Jatropha gossypifolia.
650 $aBotryosphaeriales
650 $aPhylogeny
650 $aPlant pathology
653 $aCryptic species
653 $aSoil-borne fungi
700 1 $aPINHO, D. B.
700 1 $aSOARES, D. J.
700 1 $aGOMES, A. A. M.
700 1 $aPEREIRA, O. L.
773 $tEuropean Journal of Plant Pathology$gv. 53, p. 89-100, 2019.
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