Influência de fatores edáficos na produção de fenóis totais e taninos de duas espécies de barbatimão (Stryphnodendron sp.)
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Data
2005-12
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Editor
João Batista Duarte
Resumo
This study evaluated the influence of edaphic factors on
total phenols and tannins yield of two species of barbatimão
(S. adstringens and S. polyphyllum). Data were collected in four
"cerrado" locations in Goiás State, Brazil, during the dry (July
2001) and rainy season (February 2002). S. adstringens specimens
(trees) were sampled in the municipalities of Rio Verde,
Bela Vista de Goiás and Silvânia, and specimens of S. polyphyllum
were sampled in Rio Verde, Bela Vista de Goiás and Abadia de
Goiás; five specimens were collected from each county, totaling
thirty specimens. The collected material consisted of one bark
sample per specimen and season, and soil samples at two depths
(0-20 cm and 20-40 cm) in the dry season. Bark total phenols
and tannins were determined by Hagerman & Butler method, and
soil analyses followed the current methods recommended by
Embrapa. Data was statistically analyzed by principal component
analysis. It was showed that low chemical fertility soils were
associated with the highest total phenols and tannins, particularly
for S. polyphylum. Higher yields of these metabolic products
were observed in the rainy season. In the dry season, sandy soils
were positively correlated with total phenols and tannins yields,
while soil aluminum saturation was more correlated with total
phenols and tannins in the rainy season
Descrição
Palavras-chave
Planta medicinal, Cerrado, Taninos, Fenóis, Medicinal herb, Tannin, pheno.
Citação
JACOBSON, Tamiel Khan Baiocchi; GARCIA, José; SANTOS, Suzana da Costa; DUARTE, João Batista; FARIAS, João Gaspar; KLIEMANN, Huberto José. Influência de fatores edáficos na produção de fenóis totais e taninos de duas espécies de barbatimão (Stryphnodendron sp.). Pesquisa Agropecuária Tropical, Goiânia, v. 35, n. 3, p. 163-169, set./dez. 2005. Disponível em: <https://www.revistas.ufg.br/pat/article/view/2218>.