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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Florestas; Embrapa Pantanal. |
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Data corrente: |
22/05/2000 |
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Data da última atualização: |
22/05/2000 |
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Autoria: |
OLIVEIRA, M. V. N. d'. |
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Título: |
Artificial regeneration in gaps and skidding trails after mechanised forest exploitation in Acre, Brazil. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Forest Ecology and Management, Amsterdam, v. 127, p. 67-76, 2000. |
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Idioma: |
Inglês |
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Conteúdo: |
The natural regeneration of some desirable species under exploitation pressure in Amazon is often very poor or non-existent. The traditional techniques of enrichment planting have presented low performance of the planted seedlings and high costs for its implementation. This study analyzes the first 5 years of growth and survival of five tropical tree species (Bertholletia excelsa, Ceiba pentandra, Torresia acreana, Swietenia macrophylla and Cedrela fissilis) planted in skidding trails and exploitation gaps. The basic planting technique consisted in using the cleared areas after forest harvesting for the establishment of seedlings of species ecologically adapted to the gap environment. The study was carried out in the EMBRAPA-CPAF-ACRE (Agroforestry Research Centre of Acre) in Acre State in West Amazon. The diameter increment varied from 0.30 cm year-1 for Bertholletia to 0.52 cm year-1 for Swietenia and Torresia. After 5 yeras the height growth was similar for all species around 3.0 m. In the first year Bertholletia presented a high mortality, around 80%, caused by severe predation by rodents. Ceiba also presented a high mortality after the second year of planting probably due the canopy closure. The best survival percentage was presented by Torresia, over 90%. The Meliaceae (Swietenia and Cedrela) species had a similar survival, around 70 to 75%. The Hypsipyla grandella attack was more severe in Cedrela than in Swietenia, but in both cases (9.37 and 31% after 7 and 5 years respectively for Swietenia and Cedrela) was still low when compared with other enrichment planting. MenosThe natural regeneration of some desirable species under exploitation pressure in Amazon is often very poor or non-existent. The traditional techniques of enrichment planting have presented low performance of the planted seedlings and high costs for its implementation. This study analyzes the first 5 years of growth and survival of five tropical tree species (Bertholletia excelsa, Ceiba pentandra, Torresia acreana, Swietenia macrophylla and Cedrela fissilis) planted in skidding trails and exploitation gaps. The basic planting technique consisted in using the cleared areas after forest harvesting for the establishment of seedlings of species ecologically adapted to the gap environment. The study was carried out in the EMBRAPA-CPAF-ACRE (Agroforestry Research Centre of Acre) in Acre State in West Amazon. The diameter increment varied from 0.30 cm year-1 for Bertholletia to 0.52 cm year-1 for Swietenia and Torresia. After 5 yeras the height growth was similar for all species around 3.0 m. In the first year Bertholletia presented a high mortality, around 80%, caused by severe predation by rodents. Ceiba also presented a high mortality after the second year of planting probably due the canopy closure. The best survival percentage was presented by Torresia, over 90%. The Meliaceae (Swietenia and Cedrela) species had a similar survival, around 70 to 75%. The Hypsipyla grandella attack was more severe in Cedrela than in Swietenia, but in both cases (9.37 and 31% after 7 and 5 years... Mostrar Tudo |
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Palavras-Chave: |
Acre; Brasil; Cedrella fissilis; Enrichment; Enrichment planting; Enriquecer; Enriquecimento; Exploitation; Management; Manejo florestal; Plantar; Plantio de enriquecimento; Torresia acreana. |
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Thesagro: |
Bertholletia Excelsa; Ceiba Pentandra; Ecologia; Exploração Florestal; Floresta; Manejo; Regeneração Artificial; Silvicultura; Swietenia Macrophylla; Viveiro. |
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Thesaurus Nal: |
artificial regeneration; ecology; forest management; forestry; seedlings; silviculture. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02880naa a2200469 a 4500
001 1303900
005 2000-05-22
008 2000 bl --- 0-- u #d
100 1 $aOLIVEIRA, M. V. N. d'.
245 $aArtificial regeneration in gaps and skidding trails after mechanised forest exploitation in Acre, Brazil.
260 $c2000
520 $aThe natural regeneration of some desirable species under exploitation pressure in Amazon is often very poor or non-existent. The traditional techniques of enrichment planting have presented low performance of the planted seedlings and high costs for its implementation. This study analyzes the first 5 years of growth and survival of five tropical tree species (Bertholletia excelsa, Ceiba pentandra, Torresia acreana, Swietenia macrophylla and Cedrela fissilis) planted in skidding trails and exploitation gaps. The basic planting technique consisted in using the cleared areas after forest harvesting for the establishment of seedlings of species ecologically adapted to the gap environment. The study was carried out in the EMBRAPA-CPAF-ACRE (Agroforestry Research Centre of Acre) in Acre State in West Amazon. The diameter increment varied from 0.30 cm year-1 for Bertholletia to 0.52 cm year-1 for Swietenia and Torresia. After 5 yeras the height growth was similar for all species around 3.0 m. In the first year Bertholletia presented a high mortality, around 80%, caused by severe predation by rodents. Ceiba also presented a high mortality after the second year of planting probably due the canopy closure. The best survival percentage was presented by Torresia, over 90%. The Meliaceae (Swietenia and Cedrela) species had a similar survival, around 70 to 75%. The Hypsipyla grandella attack was more severe in Cedrela than in Swietenia, but in both cases (9.37 and 31% after 7 and 5 years respectively for Swietenia and Cedrela) was still low when compared with other enrichment planting.
650 $aartificial regeneration
650 $aecology
650 $aforest management
650 $aforestry
650 $aseedlings
650 $asilviculture
650 $aBertholletia Excelsa
650 $aCeiba Pentandra
650 $aEcologia
650 $aExploração Florestal
650 $aFloresta
650 $aManejo
650 $aRegeneração Artificial
650 $aSilvicultura
650 $aSwietenia Macrophylla
650 $aViveiro
653 $aAcre
653 $aBrasil
653 $aCedrella fissilis
653 $aEnrichment
653 $aEnrichment planting
653 $aEnriquecer
653 $aEnriquecimento
653 $aExploitation
653 $aManagement
653 $aManejo florestal
653 $aPlantar
653 $aPlantio de enriquecimento
653 $aTorresia acreana
773 $tForest Ecology and Management, Amsterdam$gv. 127, p. 67-76, 2000.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
06/12/2011 |
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Data da última atualização: |
06/12/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
FERREIRA, E. H. da R.; MASSON, L. M. P; ROSENTHAL, A.; SOUZA, M. de L.; TASHIMA, L.; MASSAGUER, P. R. de. |
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Afiliação: |
ELISA HELENA DA ROCHA FERREIRA, IFRJ; LOURDES MARIA PESSOA MASSON, IFRJ; AMAURI ROSENTHAL, CTAA; MARIA DE LOURDES MENDES DE SOUZA, CTAA; LUANA TASHIMA, SENAI; PILAR RODRIGUEZ DE MASSAGUER, LABOTERMO. |
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Título: |
Termorresistência de fungos filamentosos isolados de néctares de frutas envasados assepticamente. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Brazilian Journal of Food Technology, Campinas, v. 14, n. 3, p. 164-171, jul./set. 2011. |
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DOI: |
10.4260/BJFT2011140300021 |
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Idioma: |
Português |
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Conteúdo: |
O presente estudo teve como objetivo caracterizar a termorresistência dos fungos mais termorresistentes, isolados de néctares de maracujá e abacaxi comerciais pasteurizados, bem como verificar a produção de patulina por esses fungos, quando inoculados em tais néctares. Os fungos mais termorresistentes isolados foram o Byssochlamys fulva em néctar de maracujá e o Byssochlamys nivea em néctar de abacaxi. O B. nivea, em néctar de abacaxi, mostrou-se mais termorresistente, com base nos valores de D98°C e Z, os quais resultaram em 27 min e 5,4 °C, respectivamente, em comparação com 13,6 min e 5,5 °C encontrados para B. fulva, em néctar de maracujá. A pasteurização comumente aplicada pela indústria não se mostrou suficiente para inativação dos fungos isolados. Não houve produção de patulina quando se inocularam os fungos diretamente nos néctares estudados. |
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Palavras-Chave: |
Néctar de abacaxi; Néctar de maracujá; Patulina; Termorresistência. |
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Thesaurus NAL: |
Byssochlamys fulva; Byssochlamys nivea. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/49370/1/2011-061.pdf
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Marc: |
LEADER 01715naa a2200265 a 4500
001 1908636
005 2011-12-06
008 2011 bl uuuu u00u1 u #d
024 7 $a10.4260/BJFT2011140300021$2DOI
100 1 $aFERREIRA, E. H. da R.
245 $aTermorresistência de fungos filamentosos isolados de néctares de frutas envasados assepticamente.
260 $c2011
520 $aO presente estudo teve como objetivo caracterizar a termorresistência dos fungos mais termorresistentes, isolados de néctares de maracujá e abacaxi comerciais pasteurizados, bem como verificar a produção de patulina por esses fungos, quando inoculados em tais néctares. Os fungos mais termorresistentes isolados foram o Byssochlamys fulva em néctar de maracujá e o Byssochlamys nivea em néctar de abacaxi. O B. nivea, em néctar de abacaxi, mostrou-se mais termorresistente, com base nos valores de D98°C e Z, os quais resultaram em 27 min e 5,4 °C, respectivamente, em comparação com 13,6 min e 5,5 °C encontrados para B. fulva, em néctar de maracujá. A pasteurização comumente aplicada pela indústria não se mostrou suficiente para inativação dos fungos isolados. Não houve produção de patulina quando se inocularam os fungos diretamente nos néctares estudados.
650 $aByssochlamys fulva
650 $aByssochlamys nivea
653 $aNéctar de abacaxi
653 $aNéctar de maracujá
653 $aPatulina
653 $aTermorresistência
700 1 $aMASSON, L. M. P
700 1 $aROSENTHAL, A.
700 1 $aSOUZA, M. de L.
700 1 $aTASHIMA, L.
700 1 $aMASSAGUER, P. R. de
773 $tBrazilian Journal of Food Technology, Campinas$gv. 14, n. 3, p. 164-171, jul./set. 2011.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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