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Registro Completo |
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
15/02/2016 |
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Data da última atualização: |
12/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KAINER, K. A.; WADT, L. H. de O.; GOMES-SILVA, D. A. P.; CAPANU, M. |
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Afiliação: |
Karen A. Kainer, University of Florida; LUCIA HELENA DE OLIVEIRA WADT, CPAF-RO; Daisy A. P. Gomes-Silva, Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Marinela Capanu, University of Florida. |
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Título: |
Liana loads and their association with Bertholletia excelsa fruit and nut production, diameter growth and crown attributes. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Journal of Tropical Ecology, v. 22, n. 2, p. 147-154, Mar. 2006. |
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DOI: |
10.1017/S0266467405002981 |
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Idioma: |
Português |
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Conteúdo: |
We investigated the association between lianas and Bertholletia excelsa (Brazil nut), along-lived, emergent tree of significant ecological and economic importance in Amazonia. Our objectives were: (1) to determine the relationship between crown liana load and liana number, basal area, and origin in relation to the B. excelsa host; and (2) to determine the relationship between liana load and B. excelsa fruit and nut production, diameter growth, and crown form, position and area. One hundred and forty trees (>50 cm dbh) were selected with representatives of 10 diameter classes and four liana load categories. To quantify fruit and nut production, fruit counts and nut fresh weights per tree were measured in 2002 and 2003, and annual diameter growth was quantified using dendrometer bands. Trees with lianas produced significantly fewer fruits and had reduced nut fresh weights than liana-free trees. Trees with the most extensive liana loads (>75% crown coverage) were 10.2 times more likely to have crown forms categorized as less than half-crowns or few branches than trees with reduced liana loads. No statistically significant relationship was found between liana load and tree diameter growth. Results suggest that liana cutting might increase B. excelsa fecundity and commercial nut yields. |
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Palavras-Chave: |
Castanha do brasil; Competencia ecológica; Liana; Malezas; Nuez del Brasil; Plantas parásitas. |
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Thesagro: |
Bertholletia excelsa; Castanha do pará; Competição biológica; Erva daninha. |
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Thesaurus Nal: |
Brazil nuts; Ecological competition; Lianas; Parasitic plants; Weeds. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/139000/1/25923.pdf
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Marc: |
LEADER 02358naa a2200349 a 4500
001 2036958
005 2023-06-12
008 2006 bl uuuu u00u1 u #d
024 7 $a10.1017/S0266467405002981$2DOI
100 1 $aKAINER, K. A.
245 $aLiana loads and their association with Bertholletia excelsa fruit and nut production, diameter growth and crown attributes.$h[electronic resource]
260 $c2006
520 $aWe investigated the association between lianas and Bertholletia excelsa (Brazil nut), along-lived, emergent tree of significant ecological and economic importance in Amazonia. Our objectives were: (1) to determine the relationship between crown liana load and liana number, basal area, and origin in relation to the B. excelsa host; and (2) to determine the relationship between liana load and B. excelsa fruit and nut production, diameter growth, and crown form, position and area. One hundred and forty trees (>50 cm dbh) were selected with representatives of 10 diameter classes and four liana load categories. To quantify fruit and nut production, fruit counts and nut fresh weights per tree were measured in 2002 and 2003, and annual diameter growth was quantified using dendrometer bands. Trees with lianas produced significantly fewer fruits and had reduced nut fresh weights than liana-free trees. Trees with the most extensive liana loads (>75% crown coverage) were 10.2 times more likely to have crown forms categorized as less than half-crowns or few branches than trees with reduced liana loads. No statistically significant relationship was found between liana load and tree diameter growth. Results suggest that liana cutting might increase B. excelsa fecundity and commercial nut yields.
650 $aBrazil nuts
650 $aEcological competition
650 $aLianas
650 $aParasitic plants
650 $aWeeds
650 $aBertholletia excelsa
650 $aCastanha do pará
650 $aCompetição biológica
650 $aErva daninha
653 $aCastanha do brasil
653 $aCompetencia ecológica
653 $aLiana
653 $aMalezas
653 $aNuez del Brasil
653 $aPlantas parásitas
700 1 $aWADT, L. H. de O.
700 1 $aGOMES-SILVA, D. A. P.
700 1 $aCAPANU, M.
773 $tJournal of Tropical Ecology$gv. 22, n. 2, p. 147-154, Mar. 2006.
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Embrapa Acre (CPAF-AC) |
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