Mass multiplication of seed potatoes may be achieved in specialized areas or farms, outside the traditionally closed areas, and is based on maintaining a low level of viral infections, especially the dangerous ones, caused by potato leaf roll virus and Y virus. In our country the seed potato renewal is made on a very limited extent. This is due to many causes, especially the economical and managerial ones. Considering also the fact that we carry out our activity in a hill-mountain area (South-East of Transylvania) where whether is colder and with heavier precipitations, providing very favourable conditions for potato cultivation, we intend to emphasize the area’s potential for the organization of potato production and multiplication, thus helping the farmers.

production; viral infection; resistant varieties; altitudes; multiplication microzones

Presentation: oral