STUDYING THE OUTPUT SELECTIVE MATERIAL OF POTATO ACCORDING TO RESISTANCE TO POTATO BLIGHT

Abstract

The research results estimate the backcrossing of multispecies hybrids developed in the genetic resources laboratory at the Institute of Potato Growing of the National Academy of Agrarian Sciences of Ukraine, as well as at the Transcarpathian State Agricultural Research Station of the NAASU on the issue of resistance to potato blight. Artificial infection has been done by fungus inoculum Phytophthora infestans (Mont.) de Bary to multispecies hybrids of the intensively studied seedbed of 127 samples. A significant phenotype polymorphism of the samples’ resistance to the pathogenic agent has been determined. Furthermore, forms with high resistance to potato blight and economically valuable characteristics were singled out. Keywords potato, backcrossing of interspecific hybrids, resistance, blight, economically valuable characteristics.