Produtividade da óleorresina de copaíba (Copaifera spp.) em função das relações dendrométricas e edafoclimáticas
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2019-06-27Autor
http://lattes.cnpq.br/3917410190828445
https://orcid.org/0000-0003-2370-8944
PARANATINGA, Iasmin Laís Damasceno Paranatinga
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The aim of this work was to verify if the productivity of Copaifera spp. of native trees
from the Tapajós National Forest is influenced by seasonal, dendrometric and soil
fertility factors. Initially, the trees were perforated with a traditional auger for oleoresin
flow which then were quantified and transferred to amber bottles. The dendrometric
data collected were total height, breast height circumference (CAP) and crown
diameter. For the soil variable, four soil samples were collected in each tree to
compose a single sample for soil chemical analysis. For the data analysis, a mean
and standard deviation of the productivity and dendrometric variables were
performed, performing a Tukey test at 5% of probability, followed by a multivariate of
the main components (PCA) and multivariate distance analysis, in the Statgraphics
18® computer program. The data showed that there was no statistically significant
difference when productivity. The PCA generated showed that the variables
productivity, calcium and magnesium presented negative scores and above 7 in axis
1 for CAP, evidencing that they were determining variables for this higher
dendrometric index. The observed results are 64% explained by the correlation
between these variables. These results showed that seasonality is not a determinant
factor for oleoresin productivity for the parameters evaluated here, however the
correlation of dendrometric and edaphic factors is correlated with the productivity
capacity of these trees.