Contenido del aceite esencial en el follaje de Pinus Caribaea morelet en función de la edad del árbol. II

the results obtained in the quantitation of the content of essential oil of the pinus caribaea morelet, an endemic species from cuba, according to the age of the tree, are presented. the study was conducted with trees existing in the areas of the experimental forestal station in vi？ales, province of pinar del río, at ages 8-30. the size of the sample was of 3 trees and the distillation time for the extraction of essential oil was of 3 hours. the results obtained showed that the content of esential oil increases significantly with age. the lowest value (0.12% in weight) was registered at 8 and the highest (0,27% in weight) at 30.