Prospects of potato selection for the improvement of nutritional value of tubers

Successful selection of potatoes in order to increase the nutritional value of potato tubers is limited by the duration of the selection of effective seed parents for hybridization and the need to use express methods for mass assessment of genotypes, according to the biochemical composition of tubers, especially in terms of content and ratio of starch components. The observed transgressive segregation by starchiness of potato tubers with accumulating crosses of highly starchy seed parents significantly increases the level of this trait of offspring, which weakly correlates with productivity. The high correlation between the protein content in tubers of seed parents and the average proteinity of the offspring confirms the presence of control of this trait by additively acting polygenes. This means that in the process of natural meiotic recombinogenesis in hybrid populations, the increase in the protein content of potato tubers of hybrids in the extreme variational classes is possible.