EN
Globalization resulted in increased international movement of both people and plant material or plant products, including seeds. It is estimated that up to one third of all plant viruses might be seed-borne in at least one of their hosts. In this way viruses may be comparatively easy spread to regions where they have not previously been reported. Dissemination of viruses by seeds might be minimized by using the molecular diagnostic tools. In this paper a problems connected with the detection of viruses in seeds are presented.