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Registros recuperados: 5
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Annual tree rings in Piptadenia gonoacantha (Mart.) J.F.Macbr. in a restoration experiment in the Atlantic Forest: potential for dendroecological research Acta Botanica
Brandes,Arno Fritz das Neves; Albuquerque,Rafael Perpetuo; Moraes,Luiz Fernando Duarte de; Barros,Cláudia Franca.
ABSTRACT The tree Piptadenia gonoachantha is widely used in forestry and in forest restoration projects, which require methods for evaluating tree growth. Long-term studies are necessary to determine patterns and detect changes in species growth rhythms. Tree ring analysis provides a precise method for determining age and documenting long-term growth trends in tropical tree species. The present study evaluated the periodicity of tree ring formation and radial growth dynamics of P. gonoachantha from a population of known age in the Poço das Antas Biological Reserve. Two radii from six trees were sampled using non-destructive methods. Tree rings were counted and measured to estimate age and to calculate diametric increment. All samples had 16 tree rings,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Dendrochronology; Growth rhythm; Growth rings; Leguminosae; Ombrophilous Dense Forest; Pau-jacaré; Piptadenia gonoacantha; Reforesting; Restoration.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000300383
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Aspects of arbuscular mycorrhizal fungi in an atlantic forest chronosequence parque estadual turístico do Alto Ribeira (petar), SP Biota Neotropica
Aidar,Marcos P.M.; Carrenho,Rosilaine; Joly,Carlos A..
Mycorrhizal colonization was assessed in roots of trees within an Atlantic Forest chronosequence, located in the southeastern of São Paulo State, Brazil, inside Tourist State Park of the High Ribeira Valley (PETAR). The phytosociological survey was carried out in three adjacent areas, all on calcareous soil, which correspond to different time intervals during which they have been left abandoned following a slash-and-burn agricultural perturbation. Early Phase (EP) with 15 years; Mid Phase (MP) with 25 years; and Late Phase (LP) with more than 36 years without clear-cut. The inventory indicated a continuum of tree species substitution, which is dominated by species of Leguminosae, especially Piptadenia gonoacantha (Mart.) J.F. Macbr. (Mimosoideae) in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Secondary succession; Atlantic Forest; Tropical calcareous soil; Arbuscular mycorrhizal fungi (AMF); Piptadenia gonoacantha.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032004000200005
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Atlantic Forest succession over calcareous soil, Parque Estadual Turístico do Alto Ribeira - PETAR, SP Rev. Bras. Bot.
AIDAR,MARCOS PEREIRA MARINHO; GODOY,JOÃO RUFFIN LEME DE; BERGMANN,JANINE; JOLY,CARLOS ALFREDO.
The forest succession after abandonment of slash-and-burn agriculture over calcareous soil in Brazilian Atlantic Forest was assessed. This is one of the world's most threatened Biome, with only 8% remaining. The study area is located over calcareous soil inside the Alto Ribeira Touristic State Park (PETAR), southeast Brazil. The phytossociological survey showed a successional pattern dominated by species of Leguminosae, especially Piptadenia gonoacantha (Mart.) J.F. Macbr. This species occurs in calcareous soils as a substitute of Tibouchina pulchra (Cham.) Cogn. (Melastomataceae) that is the most usual dominant tree species in early succession over acidic soil, which is the most common situation in this Biome. These results are important for a better...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Secondary succession; Brazilian Atlantic Forest; Tropical calcareous soil; Piptadenia gonoacantha; Slash-and-burn agriculture.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000400012
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Chemical constituents of Piptadenia gonoacantha (Mart.) J.F. Macbr (pau jacaré) Anais da ABC (AABC)
Carvalho,Mário G. de; Cardozo,Maritza A.R.; Catunda Junior,Francisco E.A.; Carvalho,Acácio G. de.
The phytochemical investigation of Piptadenia gonoacantha (Mart.) J.F. Macbr. (Leguminosae-Mimosoideae), commonly known as "pau jacaré" (alligator stick), afforded sitosterol, campesterol, stigmasterol, the N-benzoylphenylalanine-2-benzoylamide-3-phenylpropyl ester, known as asperphenamate, sitosterol-3-O-β-D-glucopyranoside, besides three flavonoids, apigenin, 5-O-methylapigenin and 7,4'-dihydroxy-3',5-dimethoxyflavone from its branches. From its leaves, the methyl gallate and two flavonoids, vitexin and isovitexin, were isolated. From its bark, a mixture of sitosterol, campesterol, and stigmasterol, besides a mixture of cycloartenone, cycloartan-25-en-3-one, and 24-methylene-cycloartenone, and the pure triterpenes 24-methylenecycloartanol, friedelin,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leguminoseae; Piptadenia gonoacantha; Terpenoids; Asperphenamate; Flavonoids; "pau jacaré"; Piptadenia gonoacantha.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300003
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Crescimento inicial de Piptadenia gonoacantha (Leguminosae, Mimosoideae) sob inundação em diferentes níveis de luminosidade Rev. Bras. Bot.
FERREIRA,JOICE NUNES; RIBEIRO,JOSÉ FELIPE; FONSECA,CARLOS EDUARDO LAZARINI DA.
Este estudo aborda aspectos ecológicos da inundação em plântulas de Piptadenia gonoacantha, uma espécie ocorrente em Matas de Galeria. O crescimento de plântulas com cinco meses de idade foi avaliado em duas condições de solo (capacidade de campo e inundado) combinados com três níveis de luz solar (100%, 70% e 40%). A inundação reduziu o crescimento aéreo e radicial das plântulas. Não houve interação entre luz e inundação, exceto para massa seca foliar aos 60 dias e razão parte aérea/raiz aos 20 dias. Plântulas inundadas a pleno sol apresentaram massa seca foliar aos 60 dias cerca de 67% menor que aquelas inundadas sombreadas. A razão parte aérea/raiz de plântulas inundadas foi significativamente maior aos 60 dias. Plântulas inundadas produziram lenticelas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Gallery Forest; Flooding tolerance; Irradiance; Piptadenia gonoacantha.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000500011
Registros recuperados: 5
Primeira ... 1 ... Última
 

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