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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
28/11/2007 |
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Data da última atualização: |
25/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BECK, S. L.; GUISTI, J. de; LOUW, A. K.; RESENDE, M. D. V. de. |
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Afiliação: |
S. L. Beck, Institute for Commercial Forestry Research; J. de Guisti, Institute for Commercial Forestry Research; A. K. Louw, Institute for Commercial Forestry Research; Marcos Deon Vilela de Resende, Embrapa Florestas. |
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Título: |
Assessment of three-year DBH and height data and genetic gain prediction for five Acacia mearnsii (black wattle) subpopulations in South Africa using REML/BLUP. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Southern Hemisphere Forestry Journal, v. 69, n. 2, p. 111-116, 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
Recent research has shown Acacia mearnsii (black wattle) to be a source of high-quality pulp. This led to a change in the emphasis in the breeding programme at the Institute for Commercial Forestry Research, from improving bark yield and quality, to improving timber yield and quality while maintaining an acceptable bark quality. A Multiple Population Breeding Strategy was implemented to cate r for these changes. Six subpopulations were established across different sites in KwaZulu-Natal and were determined by origin of seed. Five of these subpopulations were established in 2002 and the sixth one in 2004. Each subpopulation was established as a progeny trial with a breeding seed orchard adjacent to it. The management of the seed orchards will be determined according to the performance of the families within the progeny trials. This paper is a summary of the three-year growth measurements taken from the first five subpopulations. The results showed promising heritability values with respect to genetic gain. These data were then projected to estimate results at full rotation using appropriate growth models. Results showed that if one selects the top 20 individuais, mean annual increments (MAis) of 13.20-19.60m3 ha" y-' can be expected. If one selects the top 20 families, MAis of 10.60-19.1 Om3 ha-1 y-' can be expected. Growth data will continue to be collected each year. This will allow for continuous assessment of age-age correlations for the various traits being assessed, and will provide an appropriate decision-making tool for selecting individuais for future generations. MenosRecent research has shown Acacia mearnsii (black wattle) to be a source of high-quality pulp. This led to a change in the emphasis in the breeding programme at the Institute for Commercial Forestry Research, from improving bark yield and quality, to improving timber yield and quality while maintaining an acceptable bark quality. A Multiple Population Breeding Strategy was implemented to cate r for these changes. Six subpopulations were established across different sites in KwaZulu-Natal and were determined by origin of seed. Five of these subpopulations were established in 2002 and the sixth one in 2004. Each subpopulation was established as a progeny trial with a breeding seed orchard adjacent to it. The management of the seed orchards will be determined according to the performance of the families within the progeny trials. This paper is a summary of the three-year growth measurements taken from the first five subpopulations. The results showed promising heritability values with respect to genetic gain. These data were then projected to estimate results at full rotation using appropriate growth models. Results showed that if one selects the top 20 individuais, mean annual increments (MAis) of 13.20-19.60m3 ha" y-' can be expected. If one selects the top 20 families, MAis of 10.60-19.1 Om3 ha-1 y-' can be expected. Growth data will continue to be collected each year. This will allow for continuous assessment of age-age correlations for the various traits being assessed, and... Mostrar Tudo |
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Palavras-Chave: |
Heritabilidade. |
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Thesagro: |
Melhoramento; População. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02254naa a2200193 a 4500
001 1312014
005 2015-02-25
008 2007 bl uuuu u00u1 u #d
100 1 $aBECK, S. L.
245 $aAssessment of three-year DBH and height data and genetic gain prediction for five Acacia mearnsii (black wattle) subpopulations in South Africa using REML/BLUP.$h[electronic resource]
260 $c2007
520 $aRecent research has shown Acacia mearnsii (black wattle) to be a source of high-quality pulp. This led to a change in the emphasis in the breeding programme at the Institute for Commercial Forestry Research, from improving bark yield and quality, to improving timber yield and quality while maintaining an acceptable bark quality. A Multiple Population Breeding Strategy was implemented to cate r for these changes. Six subpopulations were established across different sites in KwaZulu-Natal and were determined by origin of seed. Five of these subpopulations were established in 2002 and the sixth one in 2004. Each subpopulation was established as a progeny trial with a breeding seed orchard adjacent to it. The management of the seed orchards will be determined according to the performance of the families within the progeny trials. This paper is a summary of the three-year growth measurements taken from the first five subpopulations. The results showed promising heritability values with respect to genetic gain. These data were then projected to estimate results at full rotation using appropriate growth models. Results showed that if one selects the top 20 individuais, mean annual increments (MAis) of 13.20-19.60m3 ha" y-' can be expected. If one selects the top 20 families, MAis of 10.60-19.1 Om3 ha-1 y-' can be expected. Growth data will continue to be collected each year. This will allow for continuous assessment of age-age correlations for the various traits being assessed, and will provide an appropriate decision-making tool for selecting individuais for future generations.
650 $aMelhoramento
650 $aPopulação
653 $aHeritabilidade
700 1 $aGUISTI, J. de
700 1 $aLOUW, A. K.
700 1 $aRESENDE, M. D. V. de
773 $tSouthern Hemisphere Forestry Journal$gv. 69, n. 2, p. 111-116, 2007.
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
19/03/1996 |
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Data da última atualização: |
19/03/1996 |
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Autoria: |
PORTO, J. C. A.; SILVA, J. M. da; ARRUDA, E. F. de; SILVEIRA, A. C. L. da. |
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Afiliação: |
EMBRAPA. Centro Nacional de Pesquisa de Gado de Corte (Campo Grande,MS). |
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Título: |
Ganho de peso e rendimento de carcaca de machos mesticos F1 Nelore x Fleckvieh e Nelore x Pardo Suico em confimento. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 28., 1991, Joao Pessoa. Anais. Joao Pessoa : SBZ, 1991. |
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Páginas: |
p.549 |
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Idioma: |
Português |
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Notas: |
CNPGC. |
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Palavras-Chave: |
Desempenho; Fleckvieh; Mestico; Nelore; Pardo suico; Productivity; Swiss Brown. |
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Thesagro: |
Bovino; Confinamento. |
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Thesaurus NAL: |
cattle; crossbreds; feedlots; Nellore. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00920naa a2200325 a 4500
001 1320112
005 1996-03-19
008 1991 bl uuuu u00u1 u #d
100 1 $aPORTO, J. C. A.
245 $aGanho de peso e rendimento de carcaca de machos mesticos F1 Nelore x Fleckvieh e Nelore x Pardo Suico em confimento.
260 $c1991
300 $ap.549
500 $aCNPGC.
650 $acattle
650 $acrossbreds
650 $afeedlots
650 $aNellore
650 $aBovino
650 $aConfinamento
653 $aDesempenho
653 $aFleckvieh
653 $aMestico
653 $aNelore
653 $aPardo suico
653 $aProductivity
653 $aSwiss Brown
700 1 $aSILVA, J. M. da
700 1 $aARRUDA, E. F. de
700 1 $aSILVEIRA, A. C. L. da
773 $tIn: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 28., 1991, Joao Pessoa. Anais. Joao Pessoa : SBZ, 1991.
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Embrapa Gado de Corte (CNPGC) |
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