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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo; Embrapa Unidades Centrais. |
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Data corrente: |
14/09/1994 |
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Data da última atualização: |
27/08/1997 |
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Autoria: |
SANTOS, H. P. dos; LHAMBY, J. C. B. |
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Afiliação: |
CNPT. |
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Título: |
Avaliacao agronomica da beterraba acucareira e forrageira. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.21, n.5, p.509-514, maio. 1986. |
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Idioma: |
Português |
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Conteúdo: |
Num periodo de quatro anos de experimentacao na EMBRAPA/CNPT, varias cultivares de beterraba (Beta vulagris L.) foram testadas, mostrando boa adaptacao no Planalto Rio-grandense. O rendimento medio de raiz obtido 34 t/ha) e o teor de acucar (16,4%) foram proximos e superiores aos dos paises tradicionalmente produtores, respectivamente, 30 t/ha e 15%. Em face disto, a beterraba pode ser considerada como boa opcao para a producao de alcool nesta regiao. O rendimento medio estimado foi de 2.771 litros/ha. |
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Palavras-Chave: |
Competicao de cultivares; Competition of cultivars. |
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Thesagro: |
Beta Vulgaris. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01015naa a2200169 a 4500
001 1104341
005 1997-08-27
008 1986 bl uuuu u00u1 u #d
100 1 $aSANTOS, H. P. dos
245 $aAvaliacao agronomica da beterraba acucareira e forrageira.
260 $c1986
520 $aNum periodo de quatro anos de experimentacao na EMBRAPA/CNPT, varias cultivares de beterraba (Beta vulagris L.) foram testadas, mostrando boa adaptacao no Planalto Rio-grandense. O rendimento medio de raiz obtido 34 t/ha) e o teor de acucar (16,4%) foram proximos e superiores aos dos paises tradicionalmente produtores, respectivamente, 30 t/ha e 15%. Em face disto, a beterraba pode ser considerada como boa opcao para a producao de alcool nesta regiao. O rendimento medio estimado foi de 2.771 litros/ha.
650 $aBeta Vulgaris
653 $aCompeticao de cultivares
653 $aCompetition of cultivars
700 1 $aLHAMBY, J. C. B.
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.21, n.5, p.509-514, maio. 1986.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
25/02/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ANDRADE, V. H. F.; MACHADO, S. do A.; FIGUEIREDO FILHO, A.; BOTOSSO, P. C.; MIRANDA, B. P.; SCHÖNGART, J. |
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Afiliação: |
Victor Hugo Ferreira Andrade, UNICENTR; Sebastião do Amaral Machado, UNICENTR; Afonso Figueiredo Filho, UNICENTRO; PAULO CESAR BOTOSSO, CNPF; Bruno Palka Miranda, UFPR; Jochen Schöngart, INPA. |
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Título: |
Growth models for two commercial tree species in upland forests of the Southern Brazilian Amazon. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Forest Ecology and Management, v. 438, p. 215-223, Apr. 2019. |
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DOI: |
10.1016/j.foreco.2019.02.030 |
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Idioma: |
Inglês |
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Conteúdo: |
Despite all efforts to promote sustainable use of timber resources in tropical forests, the current management criteria still require adjustments at a species level, considering specific growth patterns and ecological features. Forest management in upland forests (terra firme) of the Brazilian Amazon region generally applies for all commercial tree species a common minimum logging diameter (MLD) of 50 cm and a felling cycle (FC) varying according to the harvest intensity between 25 and 35 years.. In this study, we define species-specific FCs and MLDs for the two commercial tree species Hymenaea courbaril L. (Fabaceae) and Handroanthus serratifolius (Vahl) S.O. Grose (Bignoniaceae) from the terra firme of the Southern Brazilian Amazon, applying growth models based on the relationships between estimated tree age, diameter, height and volume. A total of 37 transversal crosssections (20 stem discs from Hymenaea and 17 from Handroanthus) were obtained at a height of 20–60 cm above soil level in a private forest concession close to the municipality of Novo Aripuanã in the southern region of the Amazonas state. The two species are common in terra firme forests and have high wood densities of 0.76–0.96 g cm?3 (H. courbaril) and 0.85–1.08 g cm?3 (H. serratifolius). The mean age of H. courbaril and H. serratifolius, estimated by ring counting, varied from 104 to 241 years and both species had similar mean diameter increments of 3.9 ± 0.5mmyear?1 and 4.1 ± 0.6mmyear?1, respectively. Both species present similar tree growth in diameter, height and volume resulting in a FC of 24.2 years and a MLD of 64.9 cm for H. courbaril, and a FC of 26.0 years and a MLD of 69.5 cm for H. serratifolius. These results demonstrate the need to adjust the selective logging systems practiced in the Brazilian Amazon region towards a species-specific management of timber species to increase the sustainability of selective logging. MenosDespite all efforts to promote sustainable use of timber resources in tropical forests, the current management criteria still require adjustments at a species level, considering specific growth patterns and ecological features. Forest management in upland forests (terra firme) of the Brazilian Amazon region generally applies for all commercial tree species a common minimum logging diameter (MLD) of 50 cm and a felling cycle (FC) varying according to the harvest intensity between 25 and 35 years.. In this study, we define species-specific FCs and MLDs for the two commercial tree species Hymenaea courbaril L. (Fabaceae) and Handroanthus serratifolius (Vahl) S.O. Grose (Bignoniaceae) from the terra firme of the Southern Brazilian Amazon, applying growth models based on the relationships between estimated tree age, diameter, height and volume. A total of 37 transversal crosssections (20 stem discs from Hymenaea and 17 from Handroanthus) were obtained at a height of 20–60 cm above soil level in a private forest concession close to the municipality of Novo Aripuanã in the southern region of the Amazonas state. The two species are common in terra firme forests and have high wood densities of 0.76–0.96 g cm?3 (H. courbaril) and 0.85–1.08 g cm?3 (H. serratifolius). The mean age of H. courbaril and H. serratifolius, estimated by ring counting, varied from 104 to 241 years and both species had similar mean diameter increments of 3.9 ± 0.5mmyear?1 and 4.1 ± 0.6mmyear?1, respectively. Bo... Mostrar Tudo |
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Palavras-Chave: |
Aneis de crescimento; Felling cycle; Minimum logging diameter; Selective logging; Tree rings. |
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Thesagro: |
Hymenaea Courbaril. |
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Thesaurus NAL: |
Handroanthus serratifolius. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02809naa a2200277 a 4500
001 2106450
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1016/j.foreco.2019.02.030$2DOI
100 1 $aANDRADE, V. H. F.
245 $aGrowth models for two commercial tree species in upland forests of the Southern Brazilian Amazon.$h[electronic resource]
260 $c2019
520 $aDespite all efforts to promote sustainable use of timber resources in tropical forests, the current management criteria still require adjustments at a species level, considering specific growth patterns and ecological features. Forest management in upland forests (terra firme) of the Brazilian Amazon region generally applies for all commercial tree species a common minimum logging diameter (MLD) of 50 cm and a felling cycle (FC) varying according to the harvest intensity between 25 and 35 years.. In this study, we define species-specific FCs and MLDs for the two commercial tree species Hymenaea courbaril L. (Fabaceae) and Handroanthus serratifolius (Vahl) S.O. Grose (Bignoniaceae) from the terra firme of the Southern Brazilian Amazon, applying growth models based on the relationships between estimated tree age, diameter, height and volume. A total of 37 transversal crosssections (20 stem discs from Hymenaea and 17 from Handroanthus) were obtained at a height of 20–60 cm above soil level in a private forest concession close to the municipality of Novo Aripuanã in the southern region of the Amazonas state. The two species are common in terra firme forests and have high wood densities of 0.76–0.96 g cm?3 (H. courbaril) and 0.85–1.08 g cm?3 (H. serratifolius). The mean age of H. courbaril and H. serratifolius, estimated by ring counting, varied from 104 to 241 years and both species had similar mean diameter increments of 3.9 ± 0.5mmyear?1 and 4.1 ± 0.6mmyear?1, respectively. Both species present similar tree growth in diameter, height and volume resulting in a FC of 24.2 years and a MLD of 64.9 cm for H. courbaril, and a FC of 26.0 years and a MLD of 69.5 cm for H. serratifolius. These results demonstrate the need to adjust the selective logging systems practiced in the Brazilian Amazon region towards a species-specific management of timber species to increase the sustainability of selective logging.
650 $aHandroanthus serratifolius
650 $aHymenaea Courbaril
653 $aAneis de crescimento
653 $aFelling cycle
653 $aMinimum logging diameter
653 $aSelective logging
653 $aTree rings
700 1 $aMACHADO, S. do A.
700 1 $aFIGUEIREDO FILHO, A.
700 1 $aBOTOSSO, P. C.
700 1 $aMIRANDA, B. P.
700 1 $aSCHÖNGART, J.
773 $tForest Ecology and Management$gv. 438, p. 215-223, Apr. 2019.
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