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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/05/2015 |
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Data da última atualização: |
14/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AMABILE, R. F.; FALEIRO, F. G.; CAPETTINI, F.; SAYD, R. |
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Afiliação: |
RENATO FERNANDO AMABILE, CPAC; FABIO GELAPE FALEIRO, CPAC; FLÁVIO CAPETTINI, FIELD CROP DEVELOPMENT CENTER, CANADA; RICARDO SAYD, UNB. |
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Título: |
Estimation of genetic parameters, phenotypic, genotypic and environmental correlations on Barley (Hordeum Vulgare L.) grown under irrigation conditions in the Brazilian Savannah. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Interciencia, v. 40, n. 4, p. 255-262, April 2015. |
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ISSN: |
0378-1844 |
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Idioma: |
Inglês |
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Conteúdo: |
The purpose of the present study was to estimate the heritability of traits through phenotypic, genetic and environmental parameters related to the production components and agro-morphological characters: plant height (PHt), days to heading, lodging, grain yield (YLD), thousand kernels weight (TKW), protein content, and commercial classification of grains (CLASS) of an elite collection of 39 barley genotypes grown under irrigated conditions in the savannah of Central Brazil. The experiment was planted under irrigation on May 2009 at Embrapa Cerrados, Federal District, Brazil. A complete randomized block design with four replicates was used. Genetic variability was observed among the tested genotypes. The genotypic correlations (in absolute values) found for all traits were greater than their corresponding phenotypic and environmental correlations. A significant influence of genetic factors on trait expression was observed. It could be concluded that the phenotypic expression is decreased depending on the environmental conditions. The greatest magnitudes for the genotypic and phenotypic correlations were found for TKW and CLASS. Trait YLD was positively correlated to PHt in terms of genotypic and phenotypic correlation. The selection accuracy was rated high for all traits. The high magnitudes found in the estimation of broad sense heritability indicated the existence of genetic variability, showing the possibility of obtaining genetic gains through the selection for all characters. MenosThe purpose of the present study was to estimate the heritability of traits through phenotypic, genetic and environmental parameters related to the production components and agro-morphological characters: plant height (PHt), days to heading, lodging, grain yield (YLD), thousand kernels weight (TKW), protein content, and commercial classification of grains (CLASS) of an elite collection of 39 barley genotypes grown under irrigated conditions in the savannah of Central Brazil. The experiment was planted under irrigation on May 2009 at Embrapa Cerrados, Federal District, Brazil. A complete randomized block design with four replicates was used. Genetic variability was observed among the tested genotypes. The genotypic correlations (in absolute values) found for all traits were greater than their corresponding phenotypic and environmental correlations. A significant influence of genetic factors on trait expression was observed. It could be concluded that the phenotypic expression is decreased depending on the environmental conditions. The greatest magnitudes for the genotypic and phenotypic correlations were found for TKW and CLASS. Trait YLD was positively correlated to PHt in terms of genotypic and phenotypic correlation. The selection accuracy was rated high for all traits. The high magnitudes found in the estimation of broad sense heritability indicated the existence of genetic variability, showing the possibility of obtaining genetic gains through the selection for all chara... Mostrar Tudo |
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Palavras-Chave: |
Distrito federal; Diversidade genética. |
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Thesagro: |
Cerrado; Cevada; Condição ambiental; Fenótipo; Genótipo; Hordeum vulgare; Recurso genético. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/124714/1/34574.pdf
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Marc: |
LEADER 02343naa a2200277 a 4500
001 2016592
005 2016-03-14
008 2015 bl uuuu u00u1 u #d
022 $a0378-1844
100 1 $aAMABILE, R. F.
245 $aEstimation of genetic parameters, phenotypic, genotypic and environmental correlations on Barley (Hordeum Vulgare L.) grown under irrigation conditions in the Brazilian Savannah.
260 $c2015
520 $aThe purpose of the present study was to estimate the heritability of traits through phenotypic, genetic and environmental parameters related to the production components and agro-morphological characters: plant height (PHt), days to heading, lodging, grain yield (YLD), thousand kernels weight (TKW), protein content, and commercial classification of grains (CLASS) of an elite collection of 39 barley genotypes grown under irrigated conditions in the savannah of Central Brazil. The experiment was planted under irrigation on May 2009 at Embrapa Cerrados, Federal District, Brazil. A complete randomized block design with four replicates was used. Genetic variability was observed among the tested genotypes. The genotypic correlations (in absolute values) found for all traits were greater than their corresponding phenotypic and environmental correlations. A significant influence of genetic factors on trait expression was observed. It could be concluded that the phenotypic expression is decreased depending on the environmental conditions. The greatest magnitudes for the genotypic and phenotypic correlations were found for TKW and CLASS. Trait YLD was positively correlated to PHt in terms of genotypic and phenotypic correlation. The selection accuracy was rated high for all traits. The high magnitudes found in the estimation of broad sense heritability indicated the existence of genetic variability, showing the possibility of obtaining genetic gains through the selection for all characters.
650 $aCerrado
650 $aCevada
650 $aCondição ambiental
650 $aFenótipo
650 $aGenótipo
650 $aHordeum vulgare
650 $aRecurso genético
653 $aDistrito federal
653 $aDiversidade genética
700 1 $aFALEIRO, F. G.
700 1 $aCAPETTINI, F.
700 1 $aSAYD, R.
773 $tInterciencia$gv. 40, n. 4, p. 255-262, April 2015.
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 451 | |
| 44. |  | AMABILE, R. F.; VASCONCELOS, C. M.; GOMES, A. C. Severidade da mancha-de-alternária em cultivares de girassol na região do Cerrado do Distrito Federal. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 3, p. 251-257, mar. 2002 Título em inglês: Severity of alternaria in sunflower crop in the Cerrado region of Federal District, Brazil.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 46. | | FERNANDES, F. D.; AMABILE, R. F. GOMES, A. C. Teores de nutrientes, fibra em detergente neutro e digestibilidade in vitro da materia seca de folhas, caules e capitulos de girassol. In: REUNIAO NACIONAL DE PESQUISA DE GIRASSOL, 13.; SIMPOSIO NACIONAL SOBRE A CULTURA DO GIRASSOL, 1., 1999, Itumbiara, GO. Resumos. Londrina: Embrapa Soja, 1999. p.67-68.| Biblioteca(s): Embrapa Cerrados. |
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| 56. | | SILVA, D. B. da; GUERRA, A. F.; AMABILE, R. F. Comportamento de linhagens de cevada dos ensaios em rede "CEV A, B, C e D" na regiao do cerrado em 1999. In: REUNIAO ANUAL DE PESQUISA DE CEVADA, 20., 2000, Passo Fundo, RS. Anais. Passo Fundo: Embrapa Trigo, 2000. p.125-136.| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 451 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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