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Registro Completo |
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Biblioteca(s): |
Embrapa Amapá; Embrapa Florestas. |
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Data corrente: |
02/07/1999 |
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Data da última atualização: |
02/07/1999 |
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Autoria: |
CAMERON, D. M.; RANCE, S. J.; JONES, R. M.; CHARLES-EDWARDS, D.A.; BARNES, A. |
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Título: |
Project STAG: an experimental study agroforestry. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Australian Journal of Agricultural Research, Victoria, v.40, p.699-714, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
An agroforestry study (Project STAG - Soils, Trees And Grass) to identify problems in the development of stable silvopastoral systems in a subtropical environment was run over 4.6 years at the Samford Pasture Research Station, NW of Brisbane, Queensland. Eucalyptus grandis was planted in a Nelder fan design, with tree stand densities ranging from 42 to 3580 stems/ha, into a Setaria dominated pasture. Growth of trees improved with increasing stand density until competition for water and light outweighted the benefits of mutual protection. For most parameters measured, there was a change in magnitude with time away from the centre of the wheel like ripples in a pond. At 1.5 years the maximum above-ground individual tree biomass was at a stocking of 3580 stems/ha. At 2, 2.5, 3, 3.5 and 4.6 years the maxima were at 1140, 595, 305, 158 and 82 stems/ha respectively. Trees interacted with each other, even at low stand densities. Pasture production also showed a ripple effect, being little affected by the trees at age 0.5 years, but substantially reduced after 1.5 years at stand densities >1000 stems/ha. By age 3.5 years, pasture production was reduced at stand densities >300 stems/ha. At this age and stocking, tree growth, taper, crown dimensions and health were also optimal. It is concluded that trees and pasture can be successfully grown together to provide substantial production from each, but that a thinning regime would be required to maintain an optimum balance between the two components of this system. MenosAn agroforestry study (Project STAG - Soils, Trees And Grass) to identify problems in the development of stable silvopastoral systems in a subtropical environment was run over 4.6 years at the Samford Pasture Research Station, NW of Brisbane, Queensland. Eucalyptus grandis was planted in a Nelder fan design, with tree stand densities ranging from 42 to 3580 stems/ha, into a Setaria dominated pasture. Growth of trees improved with increasing stand density until competition for water and light outweighted the benefits of mutual protection. For most parameters measured, there was a change in magnitude with time away from the centre of the wheel like ripples in a pond. At 1.5 years the maximum above-ground individual tree biomass was at a stocking of 3580 stems/ha. At 2, 2.5, 3, 3.5 and 4.6 years the maxima were at 1140, 595, 305, 158 and 82 stems/ha respectively. Trees interacted with each other, even at low stand densities. Pasture production also showed a ripple effect, being little affected by the trees at age 0.5 years, but substantially reduced after 1.5 years at stand densities >1000 stems/ha. By age 3.5 years, pasture production was reduced at stand densities >300 stems/ha. At this age and stocking, tree growth, taper, crown dimensions and health were also optimal. It is concluded that trees and pasture can be successfully grown together to provide substantial production from each, but that a thinning regime would be required to maintain an optimum balance between the tw... Mostrar Tudo |
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Palavras-Chave: |
Agrofloresta; Broadleaves; Management. |
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Thesagro: |
Floresta. |
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Thesaurus Nal: |
agroforestry; forests; grasslands; silvopastoral systems; trees; yields. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02277naa a2200289 a 4500
001 1278567
005 1999-07-02
008 1989 bl --- 0-- u #d
100 1 $aCAMERON, D. M.
245 $aProject STAG$ban experimental study agroforestry.
260 $c1989
520 $aAn agroforestry study (Project STAG - Soils, Trees And Grass) to identify problems in the development of stable silvopastoral systems in a subtropical environment was run over 4.6 years at the Samford Pasture Research Station, NW of Brisbane, Queensland. Eucalyptus grandis was planted in a Nelder fan design, with tree stand densities ranging from 42 to 3580 stems/ha, into a Setaria dominated pasture. Growth of trees improved with increasing stand density until competition for water and light outweighted the benefits of mutual protection. For most parameters measured, there was a change in magnitude with time away from the centre of the wheel like ripples in a pond. At 1.5 years the maximum above-ground individual tree biomass was at a stocking of 3580 stems/ha. At 2, 2.5, 3, 3.5 and 4.6 years the maxima were at 1140, 595, 305, 158 and 82 stems/ha respectively. Trees interacted with each other, even at low stand densities. Pasture production also showed a ripple effect, being little affected by the trees at age 0.5 years, but substantially reduced after 1.5 years at stand densities >1000 stems/ha. By age 3.5 years, pasture production was reduced at stand densities >300 stems/ha. At this age and stocking, tree growth, taper, crown dimensions and health were also optimal. It is concluded that trees and pasture can be successfully grown together to provide substantial production from each, but that a thinning regime would be required to maintain an optimum balance between the two components of this system.
650 $aagroforestry
650 $aforests
650 $agrasslands
650 $asilvopastoral systems
650 $atrees
650 $ayields
650 $aFloresta
653 $aAgrofloresta
653 $aBroadleaves
653 $aManagement
700 1 $aRANCE, S. J.
700 1 $aJONES, R. M.
700 1 $aCHARLES-EDWARDS, D.A.
700 1 $aBARNES, A.
773 $tAustralian Journal of Agricultural Research, Victoria$gv.40, p.699-714, 1989.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
31/01/2008 |
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Data da última atualização: |
11/04/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CAMARGO, L. S. A.; VIANA, J. H. M.; RAMOS, A. A.; SÁ, W. F.; FERREIRA, A. M. |
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Afiliação: |
Luiz Sérgio Almeida Camargo, Embrapa Gado de Leite; João Henrique Moreira Viana, Embrapa Gado de Leite; Alessandra A. Ramos, Fiocruz; Wanderlei Ferreira de Sá, Embrapa Gado de Leite; Ademir de Moraes Ferreira, Embrapa Gado de Leite. |
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Título: |
Relationship between Oct-4 gene expression and bovine embryo produced by nuclear transfer. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Acta Scientiae Veterinariae, v. 34, s550, 2006. Supl. 1. |
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Idioma: |
Inglês |
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Notas: |
Edição dos resumos da 20ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, 2006. |
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Palavras-Chave: |
Embriões bovinos; marcador OCT-4. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/595506/1/Relationship-between-Oct-4-gene.pdf
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Marc: |
LEADER 00676nam a2200181 a 4500
001 1595506
005 2024-04-11
008 2006 bl uuuu u00u1 u #d
100 1 $aCAMARGO, L. S. A.
245 $aRelationship between Oct-4 gene expression and bovine embryo produced by nuclear transfer.$h[electronic resource]
260 $aActa Scientiae Veterinariae, v. 34, s550, 2006. Supl. 1.$c2006
500 $aEdição dos resumos da 20ª Reunião Anual da Sociedade Brasileira de Tecnologia de Embriões, Araxá, 2006.
653 $aEmbriões bovinos
653 $amarcador OCT-4
700 1 $aVIANA, J. H. M.
700 1 $aRAMOS, A. A.
700 1 $aSÁ, W. F.
700 1 $aFERREIRA, A. M.
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Embrapa Gado de Leite (CNPGL) |
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