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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
08/09/1997 |
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Data da última atualização: |
01/03/2023 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
MANTOVANI, E. C.; KRUTZ, G. W.; GIBSON, H. G.; STEINHARDT, G. C. |
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Afiliação: |
EVANDRO CHARTUNI MANTOVANI, CNPMS. |
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Título: |
A soil surface traffic corn yield model for a Cerrado soil in Brasil with less than 10 years of cultivation. |
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Ano de publicação: |
1984 |
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Fonte/Imprenta: |
St.Joseph: ASAE, 1984. |
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Páginas: |
20 p. |
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Série: |
(ASAE. Paper, 84-1546). |
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Idioma: |
Inglês |
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Conteúdo: |
This study was conducted at the National Research Center for Corn and Sorghum, EMBRAPA, Sete Lagoas, Minas Gerais, Brazil, 1983, with the objective to quantify the effect of surface traffic on corn yield. Five different amounts of tractor traffic having a contact pressure of 0,70 and 0,78 kg/GM 70 passes, 1, 5, 10, 10 and subsoiling along with two irrigation levels in a split plot design were tested. Soil characteriszation of the plots was performed before and after the tractor passes at various depths. There were no statically significant differences among the ten treatments. |
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Palavras-Chave: |
Maize; Model; Modelo. |
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Thesagro: |
Mecanização; Milho; Zea Mays. |
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Thesaurus Nal: |
mechanization. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/48341/1/Soil-surface.pdf
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Marc: |
LEADER 01270nam a2200253 a 4500
001 1486605
005 2023-03-01
008 1984 bl uuuu u0uu1 u #d
100 1 $aMANTOVANI, E. C.
245 $aA soil surface traffic corn yield model for a Cerrado soil in Brasil with less than 10 years of cultivation.$h[electronic resource]
260 $aSt.Joseph: ASAE$c1984
300 $a20 p.
490 $a(ASAE. Paper, 84-1546).
520 $aThis study was conducted at the National Research Center for Corn and Sorghum, EMBRAPA, Sete Lagoas, Minas Gerais, Brazil, 1983, with the objective to quantify the effect of surface traffic on corn yield. Five different amounts of tractor traffic having a contact pressure of 0,70 and 0,78 kg/GM 70 passes, 1, 5, 10, 10 and subsoiling along with two irrigation levels in a split plot design were tested. Soil characteriszation of the plots was performed before and after the tractor passes at various depths. There were no statically significant differences among the ten treatments.
650 $amechanization
650 $aMecanização
650 $aMilho
650 $aZea Mays
653 $aMaize
653 $aModel
653 $aModelo
700 1 $aKRUTZ, G. W.
700 1 $aGIBSON, H. G.
700 1 $aSTEINHARDT, G. C.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
18/03/2011 |
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Data da última atualização: |
10/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SILVA, M. V. G. B.; SONSTEGARD, T. S.; THALLMAN, R. M.; CONNOR, E. E.; SCHNABEL, R. D.; TASSELL, C. P. V. |
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Afiliação: |
MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; Tad Stewart Sonstegard, USDA/ARS; RICHARD M. THALLMAN, USDA; ERIN E. CONNOR, USDA; ROBERT D. SCHNABEL, UNIVERSITY OF MISSOURI-COLUMBIA; CURT P. VAN TASSELL, USDA. |
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Título: |
Characterization of DGAT1 Allelic effects in a sample of north american holstein cattle. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Animal Biotechnology, v. 21, p. 88-99, 2010. |
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DOI: |
https://doi.org/10.1080/10495390903504625 |
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Idioma: |
Inglês |
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Conteúdo: |
A putative causative mutation underlying a QTL was identified as a lysine to alanine non-conservative substitution at amino acid 232 of the gene encoding the acylCoA:diacylglycerol acyltransferase (DGAT1) protein. Our goal was to characterize the allelic substitution effects of this DGAT1 mutation in a large sample of Holstein bulls from North America. Statistically significant effects were identified for all of the milk production traits and somatic cell scores. Estimated average effects of substituting the lysine allele for the alanine variant on Holstein bull daughter yield deviations were −81 kg, 3.7 kg, −1.1 kg, 0.063%, 0.012%, and −0.023 units for milk yield, fat yield, protein yield, fat component, protein component, and SCS, respectively. These estimates were largely in agreement with previous studies; however, the magnitudes of the estimates were much smaller in this study. Impacts on economic indices for net merit, cheese merit, and fluid merit were modest. Because of the strong antagonism between fat and protein yield and how those traits influence economic indices, selection for DGAT1 genotypes will likely not find widespread application in the U.S. |
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Palavras-Chave: |
Substitution effect. |
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Thesaurus NAL: |
dairy cattle; milk production; quantitative trait loci. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 01943naa a2200241 a 4500
001 1881591
005 2022-08-10
008 2010 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/10495390903504625$2DOI
100 1 $aSILVA, M. V. G. B.
245 $aCharacterization of DGAT1 Allelic effects in a sample of north american holstein cattle.$h[electronic resource]
260 $c2010
520 $aA putative causative mutation underlying a QTL was identified as a lysine to alanine non-conservative substitution at amino acid 232 of the gene encoding the acylCoA:diacylglycerol acyltransferase (DGAT1) protein. Our goal was to characterize the allelic substitution effects of this DGAT1 mutation in a large sample of Holstein bulls from North America. Statistically significant effects were identified for all of the milk production traits and somatic cell scores. Estimated average effects of substituting the lysine allele for the alanine variant on Holstein bull daughter yield deviations were −81 kg, 3.7 kg, −1.1 kg, 0.063%, 0.012%, and −0.023 units for milk yield, fat yield, protein yield, fat component, protein component, and SCS, respectively. These estimates were largely in agreement with previous studies; however, the magnitudes of the estimates were much smaller in this study. Impacts on economic indices for net merit, cheese merit, and fluid merit were modest. Because of the strong antagonism between fat and protein yield and how those traits influence economic indices, selection for DGAT1 genotypes will likely not find widespread application in the U.S.
650 $adairy cattle
650 $amilk production
650 $aquantitative trait loci
653 $aSubstitution effect
700 1 $aSONSTEGARD, T. S.
700 1 $aTHALLMAN, R. M.
700 1 $aCONNOR, E. E.
700 1 $aSCHNABEL, R. D.
700 1 $aTASSELL, C. P. V.
773 $tAnimal Biotechnology$gv. 21, p. 88-99, 2010.
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Embrapa Gado de Leite (CNPGL) |
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