The storability of potato varieties from different maturity groups under the conditions of the south of the Far East

Abstract

Relevance. Preserving turgor pressure and preventing the sprouting of fresh tubers at 4–5 ºС for 7–8 month are the most important parameters characterizing the quality of potato varieties during long-term storage. The ability of potato tubers to remain in a dormant state for a prolonged period after the harvest is the basis of their storability. FSBSI «FSC of Agricultural Biotechnology of the Far East named after A.K. Chaika» not only conducts a complex evaluation of potato varieties but also studies their storability. The research goal was to study the genepool of the potato germplasm collection for the ability of tubers to be stored under natural conditions with a long period of dormancy and to identify the most valuable varieties for further breeding.Methods. The studies were conducted in 2001–2022. The object of research are varietal of the bioresource potato collection of the A.K. Chaika Federal Research Center for Agrobiotechnologies of the Far East, consisting of 825 genotypes.Results. It was found that the largest number of samples with good keeping quality belong to the mid-ripening, mid-late and late maturation groups. By the end of storage, absolute rot in the studied samples was noted in the range of 0.1–0.2%. The natural decline was 2.8–8.8%. With the maximum yield of full-fledged potatoes, the varieties Alice (93.1%), Evgenia (93.0%), Ilyinsky (94.6%), Kazachok (93.3%), Krasnaya Gorka (94.6%), Lazar (93.5%), Legend (93.4%), Rhapsody (94.5%), Trickle (93.1%), Scarb (94.2%), Sparta (94.6%), Spiridon (94.0%), Anosta (93.3%), Brage (93.5%), Costella (95.3%), Hermes (94.6%), Frila (94.4%), Ibis (93.2%), which are recommended for breeding as sources of good lying capacity.