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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
12/11/2020 |
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Data da última atualização: |
20/11/2023 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
SIVIERO, A.; LESSA, L. S. |
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Afiliação: |
AMAURI SIVIERO, CPAF-AC; LAURO SARAIVA LESSA, CPAF-AC. |
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Título: |
Agrobiodiversidade de mandioca do Acre. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
In: SILVA, N. C. de A.; COSTA, F. M.; VIDAL, R.; VEASEY, E. A. (org.). Milhos das terras baixas da América do Sul e conservação da agrobiodiversidade no Brasil e no Uruguai. Ponta Grossa, PR: Atena, 2020. |
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Páginas: |
cap. 15, p. 224-237. |
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DOI: |
10.22533/at.ed.73020101115 |
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Idioma: |
Português |
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Conteúdo: |
A mandioca constitui um bom modelo de análise e estudos sobre inter-relações entre sociedade, recursos fitogenéticos e condições ecológicas por ser uma planta amplamente cultivada por populações indígenas, mestiças e colonos, sendo representada por grande número de variedades. A ligação agricultor-variedade de mandioca é um sinônimo de ligação forte entre ser humano-natureza. A compreensão deste laço é a chave para a conservação de variedades locais, um importante tesouro para o futuro. Os principais detentores de materiais silvestres e variedades crioulas de mandioca na Amazônia são as populações locais distribuídas nas diversas terras indígenas e os agricultores situados na terra firme e nas barrancas dos rios. |
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Palavras-Chave: |
Acre; Agrobiodiversidad; Agrobiodiversidade; Agrobiodiversity; Amazonia Occidental; Amazônia Ocidental; Cultivares; Variación genética; Western Amazon; Yuca. |
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Thesagro: |
Características Agronômicas; Mandioca; Manihot Esculenta; Variação Genética; Variedade. |
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Thesaurus Nal: |
Agronomic traits; Cassava; Cultivars; Genetic variation. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217738/1/27069.pdf
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Marc: |
LEADER 01952naa a2200385 a 4500
001 2126528
005 2023-11-20
008 2020 bl uuuu u00u1 u #d
024 7 $a10.22533/at.ed.73020101115$2DOI
100 1 $aSIVIERO, A.
245 $aAgrobiodiversidade de mandioca do Acre.$h[electronic resource]
260 $c2020
300 $acap. 15, p. 224-237.
520 $aA mandioca constitui um bom modelo de análise e estudos sobre inter-relações entre sociedade, recursos fitogenéticos e condições ecológicas por ser uma planta amplamente cultivada por populações indígenas, mestiças e colonos, sendo representada por grande número de variedades. A ligação agricultor-variedade de mandioca é um sinônimo de ligação forte entre ser humano-natureza. A compreensão deste laço é a chave para a conservação de variedades locais, um importante tesouro para o futuro. Os principais detentores de materiais silvestres e variedades crioulas de mandioca na Amazônia são as populações locais distribuídas nas diversas terras indígenas e os agricultores situados na terra firme e nas barrancas dos rios.
650 $aAgronomic traits
650 $aCassava
650 $aCultivars
650 $aGenetic variation
650 $aCaracterísticas Agronômicas
650 $aMandioca
650 $aManihot Esculenta
650 $aVariação Genética
650 $aVariedade
653 $aAcre
653 $aAgrobiodiversidad
653 $aAgrobiodiversidade
653 $aAgrobiodiversity
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aCultivares
653 $aVariación genética
653 $aWestern Amazon
653 $aYuca
700 1 $aLESSA, L. S.
773 $tIn: SILVA, N. C. de A.; COSTA, F. M.; VIDAL, R.; VEASEY, E. A. (org.). Milhos das terras baixas da América do Sul e conservação da agrobiodiversidade no Brasil e no Uruguai. Ponta Grossa, PR: Atena, 2020.
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Registro original: |
Embrapa Acre (CPAF-AC) |
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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: |
23/09/2008 |
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Data da última atualização: |
23/09/2008 |
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Autoria: |
BUTENSCHOEN, O.; SCHEU, S. |
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Título: |
Interactions of litter diversity and decomposer diversity on nitrogen fluxes during litter decomposition- a microcosm study using 15N stable isotopes. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
Past research on biodiversity mainly focused on the effect of plant species richness and its
control over plant biomass production. Little is known, however, about the relationship between
plant diversity/identity, in particular litter diversity/identity, decomposer diversity and key
ecosystem processes such as decomposition, carbon transformation, and nutrient mineralization,
vital components sustaining ecosystem functioning. The objective of the experiment was to
investigate immobilization/mobilization of nitrogen during the decomposition of litter mixtures of
four qualities from five biomes with and without decomposers.
In a full factorial design 300 microcosms (190 mm height, 110 mm inner diameter) were filled
with 100 g dry weight defaunated soil, and 300 microcosms with 80 g dry weight defaunated
and 20 g not defaunated sieved soil. 5 mg 15N-Ammonium -15N-Nitrat were added per
microcosm as a tracer. Litter of four qualities (broadleaf evergreen, deciduous slow decomp.,
deciduous fast decomp. and nitrogen fixer) separately from five biomes (sub arctic, boreal,
temperate, mediterranean and tropical) were added to establish the single, two, three and four
species treatment with in total 4 g dry weight litter per microcosm. Half of the microcosms were
designated for an intermediate harvest after 6 month, and the remaining will be harvested at the
end of the experiment end of 2008. Treatments were replicated two times; 600 microcosms =
15 (litter mixture) x 2 (fauna +/-) x 2 (replicates) x 2 (time) x 5 (biomes). During the experiment
CO2 evolved in the microcosms was measured titrimetrically every week in the beginning, monthly
later. After 6 month of incubation remaining litter was collected, dry weight was determined and
litter was analysed for 15N and microbial biomass (SIR). Soil samples were taken and analysed
for 15N and microbial biomass (SIR). Soil and litter fauna were extracted and determined. MenosPast research on biodiversity mainly focused on the effect of plant species richness and its
control over plant biomass production. Little is known, however, about the relationship between
plant diversity/identity, in particular litter diversity/identity, decomposer diversity and key
ecosystem processes such as decomposition, carbon transformation, and nutrient mineralization,
vital components sustaining ecosystem functioning. The objective of the experiment was to
investigate immobilization/mobilization of nitrogen during the decomposition of litter mixtures of
four qualities from five biomes with and without decomposers.
In a full factorial design 300 microcosms (190 mm height, 110 mm inner diameter) were filled
with 100 g dry weight defaunated soil, and 300 microcosms with 80 g dry weight defaunated
and 20 g not defaunated sieved soil. 5 mg 15N-Ammonium -15N-Nitrat were added per
microcosm as a tracer. Litter of four qualities (broadleaf evergreen, deciduous slow decomp.,
deciduous fast decomp. and nitrogen fixer) separately from five biomes (sub arctic, boreal,
temperate, mediterranean and tropical) were added to establish the single, two, three and four
species treatment with in total 4 g dry weight litter per microcosm. Half of the microcosms were
designated for an intermediate harvest after 6 month, and the remaining will be harvested at the
end of the experiment end of 2008. Treatments were replicated two times; 600 microcosms =
15 (litter mixture) x 2 (fauna +/-) x ... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02655naa a2200133 a 4500
001 1314803
005 2008-09-23
008 2008 bl uuuu u00u1 u #d
100 1 $aBUTENSCHOEN, O.
245 $aInteractions of litter diversity and decomposer diversity on nitrogen fluxes during litter decomposition- a microcosm study using 15N stable isotopes.
260 $c2008
520 $aPast research on biodiversity mainly focused on the effect of plant species richness and its control over plant biomass production. Little is known, however, about the relationship between plant diversity/identity, in particular litter diversity/identity, decomposer diversity and key ecosystem processes such as decomposition, carbon transformation, and nutrient mineralization, vital components sustaining ecosystem functioning. The objective of the experiment was to investigate immobilization/mobilization of nitrogen during the decomposition of litter mixtures of four qualities from five biomes with and without decomposers. In a full factorial design 300 microcosms (190 mm height, 110 mm inner diameter) were filled with 100 g dry weight defaunated soil, and 300 microcosms with 80 g dry weight defaunated and 20 g not defaunated sieved soil. 5 mg 15N-Ammonium -15N-Nitrat were added per microcosm as a tracer. Litter of four qualities (broadleaf evergreen, deciduous slow decomp., deciduous fast decomp. and nitrogen fixer) separately from five biomes (sub arctic, boreal, temperate, mediterranean and tropical) were added to establish the single, two, three and four species treatment with in total 4 g dry weight litter per microcosm. Half of the microcosms were designated for an intermediate harvest after 6 month, and the remaining will be harvested at the end of the experiment end of 2008. Treatments were replicated two times; 600 microcosms = 15 (litter mixture) x 2 (fauna +/-) x 2 (replicates) x 2 (time) x 5 (biomes). During the experiment CO2 evolved in the microcosms was measured titrimetrically every week in the beginning, monthly later. After 6 month of incubation remaining litter was collected, dry weight was determined and litter was analysed for 15N and microbial biomass (SIR). Soil samples were taken and analysed for 15N and microbial biomass (SIR). Soil and litter fauna were extracted and determined.
700 1 $aSCHEU, S.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
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