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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
19/09/2019 |
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Data da última atualização: |
06/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSSA, L. C.; CERQUEIRA-PEREIRA, E. C.; ALMEIDA, D. O. do C. de; LEDO, C. A. da S.; RICARDO FRANCO CUNHA MOREIRA. |
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Afiliação: |
LIO CARMÉNIA COSSA, UFRB; ELAINE COSTA CERQUEIRA-PEREIRA, UFRB; DARCILÚCIA OLIVEIRA DO CARMO DE ALMEIDA, UFRB; CARLOS ALBERTO DA SILVA LEDO, CNPMF; RICARDO FRANCO CUNHA MOREIRA, UFRB. |
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Título: |
Genetic variability of yam based on quantitative descriptors. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 14, n. 30, p. 1288-1294, 25 July, 2019. |
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Descrição Física: |
DOI: 10.5897/AJAR2018.13062 |
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ISSN: |
1991-637X |
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Idioma: |
Inglês |
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Conteúdo: |
Yam is a promising income source for small producers in the Recôncavo Baiano region. However, few genetic studies have been conducted with this culture. In this sense, the aim of this study was to assess genetic variability among 89 genotypes of yam (Dioscorea rotundata Poir.) collected in four municipalities in Bahia State, Brazil. These were assessed based on eight quantitative descriptors. Data were subjected to descriptive statistics, Spearman's rank correlation, Singh criterion, cluster analysis, principal component analysis and dispersion graph. The tuber weight showed the highest coefficient of variation and correlated positively and significantly with width and length of tuber. The tuber length characteristics contributed most to the genetic divergence. The criterion pseudo-t2 divided 89 genotypes into seven groups, being that groups 4, 5 and 7 showed the highest averages for the production characteristics. The first three principal components explained 69.49% variation and dispersion graph showed partly concordant with UPGMA method. This study revealed the existence of genetic variability of yam, which may be explored in future genetic improvement programs. |
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Thesagro: |
Inhame; Melhoramento Vegetal. |
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Thesaurus Nal: |
Dioscorea rotundata; Multivariate analysis; Plant breeding; Plant genetic resources. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02011naa a2200265 a 4500
001 2112325
005 2019-12-06
008 2019 bl uuuu u00u1 u #d
022 $a1991-637X
100 1 $aCOSSA, L. C.
245 $aGenetic variability of yam based on quantitative descriptors.$h[electronic resource]
260 $c2019
300 $cDOI: 10.5897/AJAR2018.13062
520 $aYam is a promising income source for small producers in the Recôncavo Baiano region. However, few genetic studies have been conducted with this culture. In this sense, the aim of this study was to assess genetic variability among 89 genotypes of yam (Dioscorea rotundata Poir.) collected in four municipalities in Bahia State, Brazil. These were assessed based on eight quantitative descriptors. Data were subjected to descriptive statistics, Spearman's rank correlation, Singh criterion, cluster analysis, principal component analysis and dispersion graph. The tuber weight showed the highest coefficient of variation and correlated positively and significantly with width and length of tuber. The tuber length characteristics contributed most to the genetic divergence. The criterion pseudo-t2 divided 89 genotypes into seven groups, being that groups 4, 5 and 7 showed the highest averages for the production characteristics. The first three principal components explained 69.49% variation and dispersion graph showed partly concordant with UPGMA method. This study revealed the existence of genetic variability of yam, which may be explored in future genetic improvement programs.
650 $aDioscorea rotundata
650 $aMultivariate analysis
650 $aPlant breeding
650 $aPlant genetic resources
650 $aInhame
650 $aMelhoramento Vegetal
700 1 $aCERQUEIRA-PEREIRA, E. C.
700 1 $aALMEIDA, D. O. do C. de
700 1 $aLEDO, C. A. da S.
700 1 $aRICARDO FRANCO CUNHA MOREIRA
773 $tAfrican Journal of Agricultural Research$gv. 14, n. 30, p. 1288-1294, 25 July, 2019.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 4 | |
| 1. |  | ALVES, A.; SETTER, T.; FREGENE, M.; FERGUSON, M.; DUQUE, L.; MUTEGI, R.; MKAMILO, G. Traits related to drought tolerance mechanisms in cassava. In: CGIAR GENERATION CHALLENGE PROGRAMME ANNUAL RESEARCH MEETING, 2008, Bangkok, Thailand. Poster abstracts... Mexico, DF: Generation Challenge Programme, 2008. p. 53.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 2. | | MUTEGI, R.; FERGUSON, M.; MAASS, B. L.; MKAMILO, G.; KAMAU, J.; ADJEBENG-DANQUAH, J.; ALVES, A.; SETTER, T.; FREGENE, M. Field evaluation of cassava varieties under drought stress in Kenia, Tanzania and Ghana. In: CGIAR GENERATION CHALLENGE PROGRAMME ANNUAL RESEARCH MEETING, 2008, Bangkok, Thailand. Poster abstracts... Mexico, DF: Generation Challenge Programme, 2008. p. 54.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 3. | | MUTEGI, R.; FERGUSON, M.; MAASS, B. L.; MKAMILO, G.; KAMAU, J.; ADJEBENG-DANQUAH, J.; ALVES, A.; SETTER, T.; FREGENE, M. Field evaluation of cassava varieties under drought stress in Kenya, Tanzania and Ghana. In: SCIENTIFIC MEETING OF THE GLOBAL CASSAVA PARTNERSHIP, 1., 2008, Ghent. Cassava: meeting the challenges of the new millennium. Ghent:: IPBO, 2008. p. 148. SP10-07.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 4. | | ALVES, A.; DITA, M.; SOUZA, A.; SILVA, A. F.; FREGENE, M.; CEBALLOS, H.; SETTER, T.; DUQUE, L.; FERGUSON, M.; MUTEGI, R.; MKAMILO, G.; ADJEBENG-DANQUAH, J.; KAMAU, J. Identifying the physiological and genetic traits that make cassava one of the most drought tolerant crops. In: CGIAR GENERATION CHALLENGE PROGRAMME ANNUAL RESEARCH MEETING, 2008, Bangkok, Thailand. Project abstracts... Mexico, DF: Generation Challenge Programme, 2008. p. 30-31.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 4 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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