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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Milho e Sorgo; Embrapa Unidades Centrais. |
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Data corrente: |
07/01/2010 |
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Data da última atualização: |
25/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, L. V. de; MIRANDA, G. V.; GALVÃO, J. C. C.; GUIMARAES, L. J. M.; SANTOS, I. C. dos. |
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Afiliação: |
LEANDRO VAGNO DE SOUZA, Dow Agrosciences - SP; GLAUCO VIEIRA MIRANDA, UFV; JOÃO CARLOS CARDOSO GALVÃO, UFV; LAURO JOSE MOREIRA GUIMARAES, CNPMS; IZABEL CRISTINA DOS SANTOS, EPAMIG. |
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Título: |
Combining ability of maize grain yield under different levels of environmental stress. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 10, p. 1297-1303, out. 2009. |
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DOI: |
10.1590/S0100-204X2009001000013 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract ? The objectives of this work were to caracterize the tropical maize germplasm and to compare the combining abilities of maize grain yield under different levels of environmental stress. A diallel was performed among tropical maize cultivars with wide adaptability, whose hybrid combinations were evaluated in two sowing dates, in two years. The significance of the environmental effect emphasized the environmental contrasts. Based on grain yield, the environments were classified as favorable (8,331 kg ha-1), low stress (6,637 kg ha-1), high stress (5,495 kg ha-1), and intense stress (2,443 kg ha-1). None of the genetic effects were significant in favorable and intense stress environments, indicating that there was low germplasm variability under these conditions. In low and high stresses, the specific combining ability effects (SCA) were significant, showing that the nonadditive genetic effects were the most important, and that it is possible to select parent pairs with breeding potential. SCA and grain yield showed significant correlations only between the closer environment pairs like favorable/low stress and high/intense stress. The genetic control of grain yield differed under contrasting stress environments for which maize cultivars with wide adaptability are not adequate. |
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Palavras-Chave: |
Capacidade de combinação; Diallel; Estresse abiótico; Melhoramento genético; Produtividade de grãos de milho. |
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Thesagro: |
Controle Genético; Zea Mays. |
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Thesaurus Nal: |
Breeding; Drought. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/160670/1/Combining-ability.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE-2010/47252/1/44n10a13.pdf
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Marc: |
LEADER 02192naa a2200289 a 4500
001 1580240
005 2018-05-25
008 2009 bl uuuu u00u1 u #d
024 7 $a10.1590/S0100-204X2009001000013$2DOI
100 1 $aSOUZA, L. V. de
245 $aCombining ability of maize grain yield under different levels of environmental stress.
260 $c2009
520 $aAbstract ? The objectives of this work were to caracterize the tropical maize germplasm and to compare the combining abilities of maize grain yield under different levels of environmental stress. A diallel was performed among tropical maize cultivars with wide adaptability, whose hybrid combinations were evaluated in two sowing dates, in two years. The significance of the environmental effect emphasized the environmental contrasts. Based on grain yield, the environments were classified as favorable (8,331 kg ha-1), low stress (6,637 kg ha-1), high stress (5,495 kg ha-1), and intense stress (2,443 kg ha-1). None of the genetic effects were significant in favorable and intense stress environments, indicating that there was low germplasm variability under these conditions. In low and high stresses, the specific combining ability effects (SCA) were significant, showing that the nonadditive genetic effects were the most important, and that it is possible to select parent pairs with breeding potential. SCA and grain yield showed significant correlations only between the closer environment pairs like favorable/low stress and high/intense stress. The genetic control of grain yield differed under contrasting stress environments for which maize cultivars with wide adaptability are not adequate.
650 $aBreeding
650 $aDrought
650 $aControle Genético
650 $aZea Mays
653 $aCapacidade de combinação
653 $aDiallel
653 $aEstresse abiótico
653 $aMelhoramento genético
653 $aProdutividade de grãos de milho
700 1 $aMIRANDA, G. V.
700 1 $aGALVÃO, J. C. C.
700 1 $aGUIMARAES, L. J. M.
700 1 $aSANTOS, I. C. dos
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 44, n. 10, p. 1297-1303, out. 2009.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Pecuária Sudeste. |
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Data corrente: |
07/06/2022 |
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Data da última atualização: |
07/06/2022 |
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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: |
ROMANELLI, P. R.; MATOS, A. M. R. N. DE; FERREIRA, F. P.; CALDART, E. T.; CARMO, J. L. M. DO; SANTOS, N. G. DOS; SILVA, N. R. DA; LOEFFLER, B. B.; SANCHES, J. F. Z.; ROMANELLI, M. S.; MINHO, A. P.; CAVALCANTE, A. C. R.; PIERRE, E. J.; SOBEZAK, C. C.; FREIRE, R. L.; BREGANÓ, R. M.; NAVARRO, I. T. |
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Afiliação: |
PAULO ROBERTO ROMANELLI, UEL; ANDRESSA MARIA RORATO NASCIMENTO DE MATOS, UEL; FERNANDA PINTO-FERREIRA, UEL; ELOIZA TELES CALDART, UEL; JOÃO LUCAS MOURA DO CARMO, UEL; NATHALIA GOMES DOS SANTOS, UEL; NATALIA RIBEIRO DA SILVA, UEL; BARBARA BARCELLOS LOEFFLER, UEL; JOÃO FERNANDO ZAMARIOLA SANCHES, UEL; MICHELINE SAHYUN ROMANELLI, Universidade Filadélfia – UNIFIL; ALESSANDRO PELEGRINE MINHO, CPPSE; ANTONIO CEZAR ROCHA CAVALCANTE, CNPC; ELZIRA JORGE PIERRE, Agência de Defesa Agropecuária do Paraná – ADAPAR; CLAUDIO CESAR SOBEZAK, Agência de Defesa Agropecuária do Paraná – ADAPAR; ROBERTA LEMOS FREIRE, UEL; REGINA MITSUKA-BREGANÓ, UEL; ITALMAR TEODORICO NAVARRO, UEL. |
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Título: |
Anti-Toxoplasma gondii and anti-Neospora caninum antibodies in sheep from Paraná state, South Brazil: prevalence and associated factors. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Revista Brasileira de Parasitologia Veterinária, v.30, n.1, 2021, e023220. |
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Páginas: |
9 p. |
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DOI: |
https://doi.org/10.1590/S1984-29612021021 |
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Idioma: |
Português |
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Conteúdo: |
The aim of this study was to evaluate the seroprevalence and factors associated with the presence of antiToxoplasma gondii and anti-Neospora caninum antibodies in sheep from Paraná state. The detection of antibodies for T. gondii and N. caninum was performed by homemade and commercial indirect ELISA, respectively. Multiple logistic regression analysis was used to verify the factors associated with the seroprevalence. Antibodies anti-T. gondii and anti-N. caninum were observed in 42.7% and in 17.6% of the animals, respectively. The protective factors associated to seropositive were ?some level of confinement? (full or semi-extensive confinement) (OR=0.53) for T. gondii and ?use of skilled labor? (OR=0.64) for N. caninum. The risk factors were ?presence of cats? (OR=1.75) for T. gondii and ?feeding of dogs with sheep placental remains? (OR=1.79) for N. caninum. In addition, to presenting a significant and simultaneous seroprevalence for both agents (9.9% of the animals), the results also indicate that deficiencies in management and environmental sanitation, the presence of reservoirs, and types of exploitation enhance the seropositivity. Thus, studies like this might support sanitary programs and public policies for the prevention of T. gondii and N. caninum in the sheep herds of Paraná state. |
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Thesagro: |
Elisa; Neospora Caninum; Toxoplasma Gondii. |
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Thesaurus NAL: |
Seroprevalence; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143824/1/AntiToxoplasmaGondii.pdf
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Marc: |
LEADER 02523naa a2200397 a 4500
001 2143824
005 2022-06-07
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/S1984-29612021021$2DOI
100 1 $aROMANELLI, P. R.
245 $aAnti-Toxoplasma gondii and anti-Neospora caninum antibodies in sheep from Paraná state, South Brazil$bprevalence and associated factors.$h[electronic resource]
260 $c2021
300 $a9 p.
520 $aThe aim of this study was to evaluate the seroprevalence and factors associated with the presence of antiToxoplasma gondii and anti-Neospora caninum antibodies in sheep from Paraná state. The detection of antibodies for T. gondii and N. caninum was performed by homemade and commercial indirect ELISA, respectively. Multiple logistic regression analysis was used to verify the factors associated with the seroprevalence. Antibodies anti-T. gondii and anti-N. caninum were observed in 42.7% and in 17.6% of the animals, respectively. The protective factors associated to seropositive were ?some level of confinement? (full or semi-extensive confinement) (OR=0.53) for T. gondii and ?use of skilled labor? (OR=0.64) for N. caninum. The risk factors were ?presence of cats? (OR=1.75) for T. gondii and ?feeding of dogs with sheep placental remains? (OR=1.79) for N. caninum. In addition, to presenting a significant and simultaneous seroprevalence for both agents (9.9% of the animals), the results also indicate that deficiencies in management and environmental sanitation, the presence of reservoirs, and types of exploitation enhance the seropositivity. Thus, studies like this might support sanitary programs and public policies for the prevention of T. gondii and N. caninum in the sheep herds of Paraná state.
650 $aSeroprevalence
650 $aSheep
650 $aElisa
650 $aNeospora Caninum
650 $aToxoplasma Gondii
700 1 $aMATOS, A. M. R. N. DE
700 1 $aFERREIRA, F. P.
700 1 $aCALDART, E. T.
700 1 $aCARMO, J. L. M. DO
700 1 $aSANTOS, N. G. DOS
700 1 $aSILVA, N. R. DA
700 1 $aLOEFFLER, B. B.
700 1 $aSANCHES, J. F. Z.
700 1 $aROMANELLI, M. S.
700 1 $aMINHO, A. P.
700 1 $aCAVALCANTE, A. C. R.
700 1 $aPIERRE, E. J.
700 1 $aSOBEZAK, C. C.
700 1 $aFREIRE, R. L.
700 1 $aBREGANÓ, R. M.
700 1 $aNAVARRO, I. T.
773 $tRevista Brasileira de Parasitologia Veterinária$gv.30, n.1, 2021, e023220.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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