Introduction

The potato is one of the most important crop worldwide. The annual potato harvest in Poland is estimated at 8 700 000 tons, while 321 100 tons were produced in Norway in 2010. Climate change has a significant impact on agriculture today, especially on plant pathogens. 

The project will focus on the two important pathogens of potato: Phytophthora infestans causing late blight and bacteria Pectobacterium spp. and Dickeya spp. causing black leg and soft rot of tubers. Chemical protection against late blight is expensive and has a negative impact for the natural environment. However, for bacterial diseases there are no chemical and biological methods of protection, therefore the only solution is production of disease–free seeds.