Abstract:Isozyme analysis of seeds collected from natural and managed populations of the tropical pine, Pinus caribaea var caribaea , was used to assess mating systems and population genetic structure By comparing the genetic parameters of the managed with the natural populations, possible impacts of changed growing condition on population genetic dynamics were detected Six populations (consisting of 3 natural populations, 1 managed seed stand and 1 clonal seed orchard in Cuba and 1 plantation populati...