Contenido del aceite esencial en el follaje de Pinus caribaea Morelet según la época del A？o. I

a study was conducted aimed at determining the content of essential oil in the green foliage of the pinus caribea morelet species and at knowing how it varies according to the month of the year. the time of distillation of the essential oil at laboratory scale, the size of the sample under our working conditions, and the content of essential oil during two years were determined by analyzing the content of essential oil from january to december. the distillation time obtained was of 3 hours and the size of the sample was of 3 trees. the highest yields of essential oil were obtained in march and april, where as the lowest ones were attained between november and december.