Raziskave v gozdarstvu so pokazale, da je treba za povečanje vrednosti gozdov, vključno z vidiki stabilnosti, prilagojenosti, odpornosti, produktivnosti in pestrosti, uporabiti reprodukcijski material, ki je genetsko ali fenotipsko prilagojen rastišču in visoko kakovosten;
Research on forestry has shown that, if forests are to be of increased value including the aspects of stability, adaptation, resistance, productivity and diversity, it is necessary to use reproductive material which is genetically and phenotypically suited to the site and of high quality;