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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
13/10/2014 |
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Data da última atualização: |
05/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COLOMBARI FILHO, J. M.; GERALDI, I. O. |
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Afiliação: |
JOSE MANOEL COLOMBARI FILHO, CNPAF; ISAIAS OLIVIO GERALDI, ESALQ. |
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Título: |
Sample size for the assessment of soybean inbred populations. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, v. 14, n. 2, p. 71-75, 2014. |
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DOI: |
10.1590/1984-70332014v14n2a13 |
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Idioma: |
Inglês |
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Conteúdo: |
In plant breeding programs, the knowledge about the appropriate sample size for the evaluation of populations is very important. A small sample reduces the chance of selecting superior genotypes, whereas a very large sample may lead to unnecessary increases in cost and labor. A population consisting of 192 soybean lines was divided in groups of 24 lines, which were assessed for grain yield in eight randomized complete block experiments. Analyses of variance were performed for each experiment as well as for groups of experiments, resulting in analyses of variance consisting of 24, 48, 72, 96, 120, 144, 168, and 192 lines. As the sample size increased, the width of confidence intervals of parameter estimates decreased, stabilizing with samples of 144 lines. Therefore, an appropriate sample size for the evaluation of soybean inbred populations should contain about 150 lines. |
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Palavras-Chave: |
Intervalo de confiança; Precisão de estimativa de parâmetro. |
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Thesagro: |
Hereditariedade; Melhoramento genético vegetal; Soja; Variação genética. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/109804/1/cbab.pdf
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Marc: |
LEADER 01560naa a2200217 a 4500
001 1997159
005 2022-05-05
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1590/1984-70332014v14n2a13$2DOI
100 1 $aCOLOMBARI FILHO, J. M.
245 $aSample size for the assessment of soybean inbred populations.
260 $c2014
520 $aIn plant breeding programs, the knowledge about the appropriate sample size for the evaluation of populations is very important. A small sample reduces the chance of selecting superior genotypes, whereas a very large sample may lead to unnecessary increases in cost and labor. A population consisting of 192 soybean lines was divided in groups of 24 lines, which were assessed for grain yield in eight randomized complete block experiments. Analyses of variance were performed for each experiment as well as for groups of experiments, resulting in analyses of variance consisting of 24, 48, 72, 96, 120, 144, 168, and 192 lines. As the sample size increased, the width of confidence intervals of parameter estimates decreased, stabilizing with samples of 144 lines. Therefore, an appropriate sample size for the evaluation of soybean inbred populations should contain about 150 lines.
650 $aHereditariedade
650 $aMelhoramento genético vegetal
650 $aSoja
650 $aVariação genética
653 $aIntervalo de confiança
653 $aPrecisão de estimativa de parâmetro
700 1 $aGERALDI, I. O.
773 $tCrop Breeding and Applied Biotechnology$gv. 14, n. 2, p. 71-75, 2014.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Florestas; Embrapa Gado de Leite. |
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Data corrente: |
25/10/2023 |
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Data da última atualização: |
07/11/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SIQUEIRA, M. M. B.; CARVALHO, M. T. de M.; CALIL, F. N.; MACHADO, P. L. O. de A.; FERREIRA, C. M.; FREITAS, F. M. C.; RIZZO, P. V.; CAN, E.; RAMSDEN, S.; BARROSO NETO, J.; OLIVEIRA, S. M.; FERNANDES, J. O.; PACHECO, A. R.; MADARI, B. E. |
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Afiliação: |
MATHEUS MENTONE DE BRITTO SIQUEIRA, bolsista CNPAF; MARCIA THAIS DE MELO CARVALHO, CNPAF; FRANCINE NEVES CALIL; PEDRO LUIZ OLIVEIRA DE A MACHADO, CNPAF; CARLOS MAGRI FERREIRA, CNPAF; FERNANDA MARA CUNHA FREITAS, CNPGL; PRICILA VETRANO RIZZO, CNPGL; EDNA CAN, UNIVERSIDADE DE NOTTINGHAM; STEPHEN RAMSDEN, UNIVERSIDADE DE NOTTINGHAM; JURACY BARROSO NETO, bolsista CNPAF; SERGIO MARTINS DE OLIVEIRA, EMATER-GO; JESUS OLIVEIRA FERNANDES, EMATER-GO; ABILIO RODRIGUES PACHECO, CNPF; BEATA EMOKE MADARI, CNPAF. |
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Título: |
Carbon balance of a small dairy farm with integrated livestock-forest system in Goiás, Central West region of Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: CONGRESO INTERNACIONAL DE SISTEMAS SILVOPASTORILES, 12.; CONGRESO DE LA RED GLOBAL DE SISTEMAS SILVOPASTORILES, 2.; IV SEMINARIO NACIONAL DE SISTEMAS SILVOPASTORILES, 4., 2023, Montevideo; CONGRESO NACIONAL SISTEMAS SILVOPASTORILES, 5., 2023, Buenos Aires. Sistemas silvopastoriles: hacia una diversificación sostenible. Cali: CIPAV, 2023. |
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Páginas: |
p. 686-690. |
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ISBN: |
978-628-95190-5-1 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to estimate CO2-eq emissions from milk production and evaluate the potential of integrated livestock-forest system to mitigate emissions via Carbon stocked in soil and eucalyptus trees in Santa Barbara Farm located in the State of Goiás, Central West region of Brazil, within the savanna biome (Cerrado). Tropical soils in the Cerrado are one of the most ancient in the world and therefore long-date weathered. In 2016, integrated livestock-forest system (ILF) was implemented in a pasture on a Geric Xanthic Ferralsol (Dystric Humic). Soil organic C (Corg) stocks in the Ferralsol were around 6 to 7 Mg ha-1 within 0.0-0.3 m layer. In the 4-year old ILF system, there were an extra 0.441 Mg ha-1 Corg stock related to same soil under continuous pasture within 0.0-1.0 m layer. The estimated total emission due to dairy production per year at farm level was around 520 Mg CO2-eq or 142 Mg of C emitted to atmosphere. Most of emissions were related to animal feeding (58%). Considering total Corg stocks in 1-m depth of soil and 2-years old eucalyptus trees in the ILF system, yet the C balance was positive, indicating emission of 102.93 Mg of C to the atmosphere due to the present dairy production system conducted at Santa Barbara farm. At 4 years after implementation, the ILF system was a sink of 38.94 Mg of C from atmosphere, offsetting around 28% of total emissions, a significant number once the farmer intends to keep and increment the ILF area in order to sustain milk production levels due to thermal comfort delivered to the cows by trees. MenosThe objective of this study was to estimate CO2-eq emissions from milk production and evaluate the potential of integrated livestock-forest system to mitigate emissions via Carbon stocked in soil and eucalyptus trees in Santa Barbara Farm located in the State of Goiás, Central West region of Brazil, within the savanna biome (Cerrado). Tropical soils in the Cerrado are one of the most ancient in the world and therefore long-date weathered. In 2016, integrated livestock-forest system (ILF) was implemented in a pasture on a Geric Xanthic Ferralsol (Dystric Humic). Soil organic C (Corg) stocks in the Ferralsol were around 6 to 7 Mg ha-1 within 0.0-0.3 m layer. In the 4-year old ILF system, there were an extra 0.441 Mg ha-1 Corg stock related to same soil under continuous pasture within 0.0-1.0 m layer. The estimated total emission due to dairy production per year at farm level was around 520 Mg CO2-eq or 142 Mg of C emitted to atmosphere. Most of emissions were related to animal feeding (58%). Considering total Corg stocks in 1-m depth of soil and 2-years old eucalyptus trees in the ILF system, yet the C balance was positive, indicating emission of 102.93 Mg of C to the atmosphere due to the present dairy production system conducted at Santa Barbara farm. At 4 years after implementation, the ILF system was a sink of 38.94 Mg of C from atmosphere, offsetting around 28% of total emissions, a significant number once the farmer intends to keep and increment the ILF area in order to ... Mostrar Tudo |
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Palavras-Chave: |
Compensação; Cool farm tool; Estoque de Carbono; Goiás; Sistema integrado. |
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Thesagro: |
Carbono; Cerrado; Eucalipto; Floresta; Pecuária; Produção Leiteira; Solo. |
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Thesaurus NAL: |
Carbon; Dairy farming; Eucalyptus; Savannas. |
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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/1157538/1/CongressoInternacional-Sistemas-Silvopastoriles-2023-2.pdf
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Marc: |
LEADER 03192nam a2200481 a 4500
001 2157538
005 2023-11-07
008 2023 bl uuuu u00u1 u #d
020 $a978-628-95190-5-1
100 1 $aSIQUEIRA, M. M. B.
245 $aCarbon balance of a small dairy farm with integrated livestock-forest system in Goiás, Central West region of Brazil.$h[electronic resource]
260 $aIn: CONGRESO INTERNACIONAL DE SISTEMAS SILVOPASTORILES, 12.; CONGRESO DE LA RED GLOBAL DE SISTEMAS SILVOPASTORILES, 2.; IV SEMINARIO NACIONAL DE SISTEMAS SILVOPASTORILES, 4., 2023, Montevideo; CONGRESO NACIONAL SISTEMAS SILVOPASTORILES, 5., 2023, Buenos Aires. Sistemas silvopastoriles: hacia una diversificación sostenible. Cali: CIPAV$c2023
300 $ap. 686-690.
520 $aThe objective of this study was to estimate CO2-eq emissions from milk production and evaluate the potential of integrated livestock-forest system to mitigate emissions via Carbon stocked in soil and eucalyptus trees in Santa Barbara Farm located in the State of Goiás, Central West region of Brazil, within the savanna biome (Cerrado). Tropical soils in the Cerrado are one of the most ancient in the world and therefore long-date weathered. In 2016, integrated livestock-forest system (ILF) was implemented in a pasture on a Geric Xanthic Ferralsol (Dystric Humic). Soil organic C (Corg) stocks in the Ferralsol were around 6 to 7 Mg ha-1 within 0.0-0.3 m layer. In the 4-year old ILF system, there were an extra 0.441 Mg ha-1 Corg stock related to same soil under continuous pasture within 0.0-1.0 m layer. The estimated total emission due to dairy production per year at farm level was around 520 Mg CO2-eq or 142 Mg of C emitted to atmosphere. Most of emissions were related to animal feeding (58%). Considering total Corg stocks in 1-m depth of soil and 2-years old eucalyptus trees in the ILF system, yet the C balance was positive, indicating emission of 102.93 Mg of C to the atmosphere due to the present dairy production system conducted at Santa Barbara farm. At 4 years after implementation, the ILF system was a sink of 38.94 Mg of C from atmosphere, offsetting around 28% of total emissions, a significant number once the farmer intends to keep and increment the ILF area in order to sustain milk production levels due to thermal comfort delivered to the cows by trees.
650 $aCarbon
650 $aDairy farming
650 $aEucalyptus
650 $aSavannas
650 $aCarbono
650 $aCerrado
650 $aEucalipto
650 $aFloresta
650 $aPecuária
650 $aProdução Leiteira
650 $aSolo
653 $aCompensação
653 $aCool farm tool
653 $aEstoque de Carbono
653 $aGoiás
653 $aSistema integrado
700 1 $aCARVALHO, M. T. de M.
700 1 $aCALIL, F. N.
700 1 $aMACHADO, P. L. O. de A.
700 1 $aFERREIRA, C. M.
700 1 $aFREITAS, F. M. C.
700 1 $aRIZZO, P. V.
700 1 $aCAN, E.
700 1 $aRAMSDEN, S.
700 1 $aBARROSO NETO, J.
700 1 $aOLIVEIRA, S. M.
700 1 $aFERNANDES, J. O.
700 1 $aPACHECO, A. R.
700 1 $aMADARI, B. E.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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