| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Unidades Centrais. |
|
Data corrente: |
20/08/2003 |
|
Data da última atualização: |
25/10/2018 |
|
Autoria: |
GRAVINA, G. de A.; SEDIYAMA, C. S.; MARTINS FILHO, S.; MOREIRA, M. A.; BARROS, E. G. de. |
|
Afiliação: |
Geraldo de Amaral Gravina, Universidade Federal de Viçosa - UFV/Departamento de Fitotecnia; Carlos Sigueyuki Sediyama, Universidade Federal de Viçosa - UFV/Departamento de Fitotecnia; Sebastião Martins Filho, Universidade Federal do Espírito Santo - UFES/Departamento de Engenharia Rural; Maurílio Alves Moreira, Universidade Federal de Viçosa - UFV/Departamento de Bioquímica e Biologia Molecular; Everaldo Gonçalves de Barros, Universidade Federal de Viçosa - UFV/Departamento de Biologia Geral. |
|
Título: |
Diallel analysis for frogeye leaf spot resistance in soybean. |
|
Ano de publicação: |
2003 |
|
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 6, p. 673-680, jun. 2003 |
|
Idioma: |
Inglês |
|
Notas: |
Título em português: Análise dialélica da resistência à mancha olho-de-rã em soja. |
|
Conteúdo: |
Seven soybean cultivars (Bossier, Cristalina, Davis, Kent, Lincoln, Paraná and Uberaba), with different levels of resistance to Cercospora sojina, were crossed in a diallel design to determine the general (GCA) and specific (SCA) combining abilities relative to the inheritance of the resistance. Race 04 of the fungus was inoculated in the parents and in the 21 F1 hybrids in a greenhouse in a completely randomized design, with 12 replications. The reactions to the disease were evaluated 20 days after the inoculation, always on the most infected leaflet. Both GCA and SCA were significant for all the evaluated characters, being inferred that, for the expression of the characters, the additive, dominant and, possibly, epistatic genic actions were important. The largest values of estimated SCA effectwere observed in the hybrid combinations where at least one parent presented high GCA. Cristalina, Davis and Uberaba cultivars showed the largest estimates for GCA effect (), and from the analysis of , the contribution of these parents to heterosis of their hybrids will be towards the reduction of the disease symptoms. Therefore, these cultivars are indicated as parents in breeding programs that seek the development of soybean cultivars with resistance to frogeye leaf spot. |
|
Palavras-Chave: |
capacidade combinatória; combining ability; genetic parameters; heterose. |
|
Thesagro: |
Cercospora Sojina; Glycine Max; Parâmetro Genético; Resistência Genética. |
|
Thesaurus Nal: |
genetic resistance; heterosis. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/24777/1/v38n6a02.pdf
|
|
Marc: |
LEADER 02228naa a2200301 a 4500
001 1084216
005 2018-10-25
008 2003 bl uuuu u00u1 u #d
100 1 $aGRAVINA, G. de A.
245 $aDiallel analysis for frogeye leaf spot resistance in soybean.
260 $c2003
500 $aTítulo em português: Análise dialélica da resistência à mancha olho-de-rã em soja.
520 $aSeven soybean cultivars (Bossier, Cristalina, Davis, Kent, Lincoln, Paraná and Uberaba), with different levels of resistance to Cercospora sojina, were crossed in a diallel design to determine the general (GCA) and specific (SCA) combining abilities relative to the inheritance of the resistance. Race 04 of the fungus was inoculated in the parents and in the 21 F1 hybrids in a greenhouse in a completely randomized design, with 12 replications. The reactions to the disease were evaluated 20 days after the inoculation, always on the most infected leaflet. Both GCA and SCA were significant for all the evaluated characters, being inferred that, for the expression of the characters, the additive, dominant and, possibly, epistatic genic actions were important. The largest values of estimated SCA effectwere observed in the hybrid combinations where at least one parent presented high GCA. Cristalina, Davis and Uberaba cultivars showed the largest estimates for GCA effect (), and from the analysis of , the contribution of these parents to heterosis of their hybrids will be towards the reduction of the disease symptoms. Therefore, these cultivars are indicated as parents in breeding programs that seek the development of soybean cultivars with resistance to frogeye leaf spot.
650 $agenetic resistance
650 $aheterosis
650 $aCercospora Sojina
650 $aGlycine Max
650 $aParâmetro Genético
650 $aResistência Genética
653 $acapacidade combinatória
653 $acombining ability
653 $agenetic parameters
653 $aheterose
700 1 $aSEDIYAMA, C. S.
700 1 $aMARTINS FILHO, S.
700 1 $aMOREIRA, M. A.
700 1 $aBARROS, E. G. de
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 38, n. 6, p. 673-680, jun. 2003
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
08/11/2019 |
|
Data da última atualização: |
08/11/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
CASTRO, C. A. de O.; NUNES, A. C. P.; ROQUE, J. V.; TEÓFILO, R. F.; SANTOS, O. P.; SANTOS, G. A.; GALLO, R.; PANTUZA, I. B.; RESENDE, M. D. V. de. |
|
Afiliação: |
Carla Aparecida de Oliveira Castro, UFV; Andrei Caíque P.Nunes, Universidade Federal do Sul da Bahia; Jussara V. Roque, UFV; Reinaldo F. Teófilo, UFV; Osmarino P. Santos, CMPC Celulose Riograndense company; Gleison A. Santos, UFV; Ricardo Gallo, Universidade Federal Rural de Pernambuco; Igor B. Pantuza, UFV; MARCOS DEON VILELA DE RESENDE, CNPF. |
|
Título: |
Optimization of Eucalyptus benthamii progeny test based on near-infrared spectroscopy approach and volumetric production. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Industrial Crops and Products, v. 141, 111786, Dec. 2019. 10 p. |
|
DOI: |
10.1016/j.indcrop.2019.111786 |
|
Idioma: |
Inglês |
|
Conteúdo: |
A progeny test of half-siblings ofEucalyptus benthamiiwas analyzed using wood quality traits combined withvolumetric information. The test was designed in completely randomized blocks design with a total of 1394 treesplanted in the city of Encruzilhada do Sul, Brazil. At six years of age, all the trees were measured and sawingsamples were collected from 87 trees, which were processed and read through the NIR. Regression models werecalibrated by the partial least squares (PLS) method to correlate the NIR spectra with wet chemical measure-ments, allowing the assembly of models to estimate values of basic density and pulp yield for all the population.From the values of basic density and pulp yield, obtained by the models, and average annual increment of wood(MAI), the average annual increment of cellulose (MAIpulp) was calculated for each individual in the test. Twotypes of optimizations were tested: balanced and unbalanced. The balanced optimization consisted of selectingfor MAIpulp, on average, 9 individuals in the 40 best families. The unbalanced optimization was performedthrough the simulation of 72 scenarios. The effect size (Ne), inbreeding rate (F), and accumulated gain werecalculated for each scenario. The selection prioritized the best families and the top ranked individuals withineach family. Results revealed that the individual heritability in the restricted sense (h²a) for density (0.331) andpulp yield (0.322) were classified as moderate magnitude. For MAIpulp, the h²a was considered high (0.514),which suggested the presence of genetic control and the possibility of obtain gains through selection. The ac-curacy for all the traits was higher than 77.3%. In addition, the NIR prediction correlation coefficient presentedvalues above 85% in PLS-OPS for basic density and pulp yield, indicating a high predictive potential of tech-nology for selection ofE. benthamiigenotypes. In the balanced scenario, 369 individuals were selected with a Neof 119 and a genetic gain of 36%. In the unbalanced scenario, the scenario 53 was selected, which demonstratedthe maintenance of 100 individuals and 36 families is necessary to obtain a Ne equal to 54 and a gain of 64.21%relative to the original population. The estimated genetic parameters indicated favorable conditions for selec-tion. The results suggested the necessity to improve the process through the use of NIR technology. For thisprocess, future research may need to adopt models specific to breeding regions and make alterations in thecalibration model for each species. The unbalanced optimization was more efficient than the balanced. Using theunbalanced procedure, researchers may be able to accomplish considerable genetic gains with less individuals inthe population while maintaining the same rate of genetic variability. MenosA progeny test of half-siblings ofEucalyptus benthamiiwas analyzed using wood quality traits combined withvolumetric information. The test was designed in completely randomized blocks design with a total of 1394 treesplanted in the city of Encruzilhada do Sul, Brazil. At six years of age, all the trees were measured and sawingsamples were collected from 87 trees, which were processed and read through the NIR. Regression models werecalibrated by the partial least squares (PLS) method to correlate the NIR spectra with wet chemical measure-ments, allowing the assembly of models to estimate values of basic density and pulp yield for all the population.From the values of basic density and pulp yield, obtained by the models, and average annual increment of wood(MAI), the average annual increment of cellulose (MAIpulp) was calculated for each individual in the test. Twotypes of optimizations were tested: balanced and unbalanced. The balanced optimization consisted of selectingfor MAIpulp, on average, 9 individuals in the 40 best families. The unbalanced optimization was performedthrough the simulation of 72 scenarios. The effect size (Ne), inbreeding rate (F), and accumulated gain werecalculated for each scenario. The selection prioritized the best families and the top ranked individuals withineach family. Results revealed that the individual heritability in the restricted sense (h²a) for density (0.331) andpulp yield (0.322) were classified as moderate magnitude. For MAIpulp, the ... Mostrar Tudo |
|
Palavras-Chave: |
Basic density; Infravermelho próximo; MAIpulp; NIR; Pulp yield; Selection; Unbalanced optimization. |
|
Thesagro: |
Eucalipto. |
|
Thesaurus NAL: |
Eucalyptus benthamii; Near-infrared spectroscopy; Plant breeding. |
|
Categoria do assunto: |
G Melhoramento Genético |
|
Marc: |
LEADER 03893naa a2200361 a 4500
001 2114104
005 2019-11-08
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.indcrop.2019.111786$2DOI
100 1 $aCASTRO, C. A. de O.
245 $aOptimization of Eucalyptus benthamii progeny test based on near-infrared spectroscopy approach and volumetric production.$h[electronic resource]
260 $c2019
520 $aA progeny test of half-siblings ofEucalyptus benthamiiwas analyzed using wood quality traits combined withvolumetric information. The test was designed in completely randomized blocks design with a total of 1394 treesplanted in the city of Encruzilhada do Sul, Brazil. At six years of age, all the trees were measured and sawingsamples were collected from 87 trees, which were processed and read through the NIR. Regression models werecalibrated by the partial least squares (PLS) method to correlate the NIR spectra with wet chemical measure-ments, allowing the assembly of models to estimate values of basic density and pulp yield for all the population.From the values of basic density and pulp yield, obtained by the models, and average annual increment of wood(MAI), the average annual increment of cellulose (MAIpulp) was calculated for each individual in the test. Twotypes of optimizations were tested: balanced and unbalanced. The balanced optimization consisted of selectingfor MAIpulp, on average, 9 individuals in the 40 best families. The unbalanced optimization was performedthrough the simulation of 72 scenarios. The effect size (Ne), inbreeding rate (F), and accumulated gain werecalculated for each scenario. The selection prioritized the best families and the top ranked individuals withineach family. Results revealed that the individual heritability in the restricted sense (h²a) for density (0.331) andpulp yield (0.322) were classified as moderate magnitude. For MAIpulp, the h²a was considered high (0.514),which suggested the presence of genetic control and the possibility of obtain gains through selection. The ac-curacy for all the traits was higher than 77.3%. In addition, the NIR prediction correlation coefficient presentedvalues above 85% in PLS-OPS for basic density and pulp yield, indicating a high predictive potential of tech-nology for selection ofE. benthamiigenotypes. In the balanced scenario, 369 individuals were selected with a Neof 119 and a genetic gain of 36%. In the unbalanced scenario, the scenario 53 was selected, which demonstratedthe maintenance of 100 individuals and 36 families is necessary to obtain a Ne equal to 54 and a gain of 64.21%relative to the original population. The estimated genetic parameters indicated favorable conditions for selec-tion. The results suggested the necessity to improve the process through the use of NIR technology. For thisprocess, future research may need to adopt models specific to breeding regions and make alterations in thecalibration model for each species. The unbalanced optimization was more efficient than the balanced. Using theunbalanced procedure, researchers may be able to accomplish considerable genetic gains with less individuals inthe population while maintaining the same rate of genetic variability.
650 $aEucalyptus benthamii
650 $aNear-infrared spectroscopy
650 $aPlant breeding
650 $aEucalipto
653 $aBasic density
653 $aInfravermelho próximo
653 $aMAIpulp
653 $aNIR
653 $aPulp yield
653 $aSelection
653 $aUnbalanced optimization
700 1 $aNUNES, A. C. P.
700 1 $aROQUE, J. V.
700 1 $aTEÓFILO, R. F.
700 1 $aSANTOS, O. P.
700 1 $aSANTOS, G. A.
700 1 $aGALLO, R.
700 1 $aPANTUZA, I. B.
700 1 $aRESENDE, M. D. V. de
773 $tIndustrial Crops and Products$gv. 141, 111786, Dec. 2019. 10 p.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
