In the continental temperate climatic area virotical infection of potato was conditioned by the sources of virotical infection and by then viroses vectors. In Huedin micro area, situated intermountain in Cluj County at 600 m altitude, which humid and cool climate and isolated in space in natural way. Were tested 4 types of potato varieties sensitive or resistant at the main viruses of potato: P...

Transgenic resistance to plant pathogens and insect pests, although temporarily on hold for potato because of political reasons, offers promise for the future of both asexually and sexually propagated potato. For a system that exploits both true potato seed (TPS) and transgenic resistance, factors that affect transgene expression during and after gametogenesis must be understood. Gene silencing...

PMTV (Potato Mop-Top Virus ) and PAMV Aucuba Mosaic Virus) are new damaging pathogens of potato crop in Romania. They can cause serious reduced yield decrease the tuber’s quality. In case these viruses, infected plants do not allways show signs disease symptoms depend on cultivar, virus strain environment. infection material produce spraing tubers sensitive varieties. causes heavy losses northe...