relaciones alométricas
hoja
regresión lineal
Coffea arabica L.
allometric relations
leaf
linear regression
Coffea arabica L.
relações alométricas
folha
regressão linear
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The models that describe allometric relationships, based on leaf counts, are non-destructive, easy and economical methods to estimate leaf area in trees. Measurements of leaf area were made by registering the number of leaves in several Castillo® variety (Coffea arabica L.) coffee trees of different ages. The relation between the leaf area of the branch and the number of leaves in it was established and validated through a simple linear regression, with regression coefficients different from zero, according to t test, at 5%. Subsequently, the estimation of the leaf area at tree level was evaluated with respect to the observed values. In addition, using the information recorded, the number of branches per tree in which the number of leaves should be counted was determined in order to estimate the leaf area of the tree, with an error of less than 20%, and a first relation between the leaf area and the production in green cherry coffee was established, with a determination coefficient of 78.3%.
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