| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Gado de Corte. |
|
Data corrente: |
23/01/2013 |
|
Data da última atualização: |
15/02/2013 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
MARTUSCELLO, J. A.; BRAZ, T. G. dos S.; JANK, L.; CUNHA, D. de N. F. V. da; FONSECA, D. M. |
|
Afiliação: |
JANAINA AZEVEDO MARTUSCELLO, Departamento de Zootecnia da Universidade Federal de São João Del-Rei.; THIAGO GOMES DOS SANTOS BRAZ, Programa de Pós-graduação em Zootecnia da Universidade Federal de Viçosa; LIANA JANK, CNPGC; DANIEL DE NORONHA FIGUEIREDO VIEIRA DA CUNHA, Departamento de Zootecnia da Universidade Federal de São João Del-Rei.; DILERMANDO MIRANDA DA FONSECA, Departamento de Zootecnia da Universidade Federal de Viçosa. |
|
Título: |
Genetic diversity based on morphological data in Panicum maximum hybrids. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v.41, n.9, p.1975-1982, 2012. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The objective of this experiment was to evaluate the genetic divergence between hybrids obtained from 10 sexual genitors of the Panicum maximum breeding program at Embrapa Beef Cattle. For this, the following morphological descriptors were used: plant height, growth habit, leaf aspect, leaf waxiness, hair density on the sheath (DePB) and blade (DePL), degree of hardiness of the hairs on the leaf sheath (DuPB) and blade (DuPL) and length of hairs on the sheath and blade. The characteristics growth habit and waxiness were not included in the analysis for being invariant. The phenotypic correlations were low and, therefore, not used to eliminate variables. By the principal component analysis, an 84.3% accumulation of the variation was observed until the fourth component. The last four principal components presented an estimate lower than 0.7 and allowed the identification of the variables DePB, DuPB and DuPL as the least important for diversity studies. The morphological characters used were not efficient to distinguish the progenies, but allowed the formation of morphological groups that converged with the graphic analysis of the principal components. An apparent error rate of 17.04% was observed in the classification of the individuals in the groups and 55.5% in the classification of the individuals in the progenies. The individuals in the P. maximum half-sib progenies are genetically divergent, but may not be grouped with only the descriptors used in this experiment. The pubescence characteristics were the least important in the discrimination of the genotypes. MenosThe objective of this experiment was to evaluate the genetic divergence between hybrids obtained from 10 sexual genitors of the Panicum maximum breeding program at Embrapa Beef Cattle. For this, the following morphological descriptors were used: plant height, growth habit, leaf aspect, leaf waxiness, hair density on the sheath (DePB) and blade (DePL), degree of hardiness of the hairs on the leaf sheath (DuPB) and blade (DuPL) and length of hairs on the sheath and blade. The characteristics growth habit and waxiness were not included in the analysis for being invariant. The phenotypic correlations were low and, therefore, not used to eliminate variables. By the principal component analysis, an 84.3% accumulation of the variation was observed until the fourth component. The last four principal components presented an estimate lower than 0.7 and allowed the identification of the variables DePB, DuPB and DuPL as the least important for diversity studies. The morphological characters used were not efficient to distinguish the progenies, but allowed the formation of morphological groups that converged with the graphic analysis of the principal components. An apparent error rate of 17.04% was observed in the classification of the individuals in the groups and 55.5% in the classification of the individuals in the progenies. The individuals in the P. maximum half-sib progenies are genetically divergent, but may not be grouped with only the descriptors used in this experiment. The pub... Mostrar Tudo |
|
Palavras-Chave: |
Discriminating analysis; Optimization method; Principal components; Relative importance of the characteristics. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/75097/1/LIANA-JANK-Artigo-Janaina-SBZ.pdf
|
|
Marc: |
LEADER 02278naa a2200217 a 4500
001 1946112
005 2013-02-15
008 2012 bl uuuu u00u1 u #d
100 1 $aMARTUSCELLO, J. A.
245 $aGenetic diversity based on morphological data in Panicum maximum hybrids.$h[electronic resource]
260 $c2012
520 $aThe objective of this experiment was to evaluate the genetic divergence between hybrids obtained from 10 sexual genitors of the Panicum maximum breeding program at Embrapa Beef Cattle. For this, the following morphological descriptors were used: plant height, growth habit, leaf aspect, leaf waxiness, hair density on the sheath (DePB) and blade (DePL), degree of hardiness of the hairs on the leaf sheath (DuPB) and blade (DuPL) and length of hairs on the sheath and blade. The characteristics growth habit and waxiness were not included in the analysis for being invariant. The phenotypic correlations were low and, therefore, not used to eliminate variables. By the principal component analysis, an 84.3% accumulation of the variation was observed until the fourth component. The last four principal components presented an estimate lower than 0.7 and allowed the identification of the variables DePB, DuPB and DuPL as the least important for diversity studies. The morphological characters used were not efficient to distinguish the progenies, but allowed the formation of morphological groups that converged with the graphic analysis of the principal components. An apparent error rate of 17.04% was observed in the classification of the individuals in the groups and 55.5% in the classification of the individuals in the progenies. The individuals in the P. maximum half-sib progenies are genetically divergent, but may not be grouped with only the descriptors used in this experiment. The pubescence characteristics were the least important in the discrimination of the genotypes.
653 $aDiscriminating analysis
653 $aOptimization method
653 $aPrincipal components
653 $aRelative importance of the characteristics
700 1 $aBRAZ, T. G. dos S.
700 1 $aJANK, L.
700 1 $aCUNHA, D. de N. F. V. da
700 1 $aFONSECA, D. M.
773 $tRevista Brasileira de Zootecnia$gv.41, n.9, p.1975-1982, 2012.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Corte (CNPGC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Roraima. |
|
Data corrente: |
15/04/2003 |
|
Data da última atualização: |
12/02/2020 |
|
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
|
Autoria: |
NASCIMENTO JUNIOR, A. do; SMIDERLE, O. J.; GIANLUPPI, V.; MATTIONI, J. A. M. |
|
Afiliação: |
ALFREDO DO NASCIMENTO JUNIOR, CPAF-RR; OSCAR JOSE SMIDERLE, CPAF-RR; VICENTE GIANLUPPI, CPAF-RR; JOSE ALBERTO MARTELL MATTIONI, CPAF-RR. |
|
Título: |
Cultivar de algodoeiro herbáceo "CNPA 7H" para Roraima. |
|
Ano de publicação: |
2000 |
|
Fonte/Imprenta: |
Boa Vista: Embrapa Roraima, 2000. |
|
Páginas: |
4 p. |
|
Série: |
(Embrapa Roraima. Comunicado Tecnico, 1). |
|
ISSN: |
0101-8620 |
|
Idioma: |
Português |
|
Palavras-Chave: |
Brasil; Cultivar CNPA 7H; Herbáceo; Roraima. |
|
Thesagro: |
Algodão. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/175472/1/cot0012000-algodao7-alf.pdf
|
|
Marc: |
LEADER 00618nam a2200229 a 4500
001 1690160
005 2020-02-12
008 2000 bl uuuu u0uu1 u #d
022 $a0101-8620
100 1 $aNASCIMENTO JUNIOR, A. do
245 $aCultivar de algodoeiro herbáceo "CNPA 7H" para Roraima.
260 $aBoa Vista: Embrapa Roraima$c2000
300 $a4 p.
490 $a(Embrapa Roraima. Comunicado Tecnico, 1).
650 $aAlgodão
653 $aBrasil
653 $aCultivar CNPA 7H
653 $aHerbáceo
653 $aRoraima
700 1 $aSMIDERLE, O. J.
700 1 $aGIANLUPPI, V.
700 1 $aMATTIONI, J. A. M.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Roraima (CPAF-RR) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
