The research goal was to create a new promising potato variety for cultivation under the conditions of the Far East region. The method of intervarietal hybridization with subse quent individual selection and evaluation according to a generally accepted breeding scheme was applied in the experiment. Testing of tuberous reproductions of seedlings and variety testing of hybrids were carried out in field conditions of breeding and seed-growing crop rotation in the Ussuriysk region, Primorsky Krai. The methods of the Russian Potato Research Center named after A. G. Lorkha and All-Russian Institute of Plant Genetic Resources named after N. I. Vavilov were taken as a basis. The initial step was to select and crossbreed a parental pair (22 flowers were pollinated, 19 berries and 1 047 seeds were obtained). As the result of intervarietal hybridization, the potato variety Moryak was created (breeding number Pri-08-11-1) from crossing of the varieties Rosinka×Zhavoronok. Moryak is a promising mid-season variety with a high yield (24.8–40.1 t/ha), dry matter content (18.1–23.9 %), starch content (12.1–17.2 %), good taste, yellow flesh and high keeping quality of tubers (90.3–94.4 %). The variety has field resistance to viral diseases, rhizoctoniosis, scab; moderately resistant to late blight and alternariosis; tolerates moisture well. In 2021, the applications for a patent and usage permission for the variety Moryak were filed to the State Commission of the Russian Federation for Selection Achievements Test and Protection. The new variety has passed the stage of virus elimination using biotechnology methods and is included in the scheme of virus-free seed production.

Kim Irina V., Voznyuk Valentina P., Kornilova Tatyana O.

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