The paper presents the results of a study on the breeding of new promising potato varieties Orion, Poseidon, Askold and Lotos. The studied potato specimens were observed to reach their physiological maturity on the 106th–116th day in 2020–2023. This is characteristic of potato genotypes from the group of medium-late maturity. However, the obtained varieties could be classified as medium-early and mid-season ones based on their capability for gaining tuber weight and the rate of tuber mass growth because the increase in productivity was estimated to be within 400.0–600.0 g/bush. The obtained varieties were characterized by good and excellent taste according to the taste assessment (7.0–8.3 points). Additionally, the individual culinary type of each variety was determined: type C for variety Orion, type B for variety Poseidon, and varieties Askold and Lotos belonged to intermediate types (BC and CD, respectively). Varieties Orion (16.61%) and Lotos (18.30%) were found to have the highest starch content. These genotypes had a high content of vitamin C as well (21.41 and 25.50 mg/10g, respectively). The new varieties showed a high stable yield of 43.4–51.0 t/ha and resistance to fungal diseases (5.0 points). The genotypes were characterized by marketability of tubers and resistance to potato wart disease (S. endobioticum, Dalem pathotype). Varieties Poseidon and Orion were submitted for the State variety testing in 2022. In the case of varieties Askold and Lotos, applications for the issue of a patent and an admission to use were submitted to State Commission of the Russian Federation for Selection Achievements Test and Protection in 2023.

Voznyuk Valentina P., Kim Irina V., Klykov Aleksei G.

1. Fedorova Yu. N., Lebedeva N. V. Potato varieties of domestic selection in the laboratory of microclonal plant propagation of Velikoluk State Agricultural Academy. Izvestiya Velikolukskoi gosudarstvennoi sel'skokhozyaistvennoi akademii, 2018;3:9–13. EDN VMVJIS (in Russ.).
2. Anisimov B. V. Value and role of potato in the healthy human nutrition. Kartofel' i ovoshchi, 2006;4:9–10. EDN HTSVWR (in Russ.).
3. Korshunov A. V. (Eds.). Potatoes of Russia. Volume 1. Breeding. Seed production. Certification, Moscow, 2003, 411 p. (in Russ.).
4. Simakov E. A., Mityushkin A. V., Mityushkin A. V., Zhuravlev A. A. Modern requirements to potato varieties of different target use. Dostizheniya nauki i tekhniki APK, 2016;30;11:45–48. EDN XRUUWR (in Russ.).
5. Lapshinov N. A., Kulikova V. I., Anoshkina L. S., Hodaeva V. P., Ryabtseva T. V. Original seed potatoes in the field of Kemerovo region. Kartofelevodstvo, 2013;21;2:81–90 (in Russ.).
6. Rafalskiy S. V., Rafalskaya O. M., Melnikova T. V. Biochemical indicators of potato tubers in the middle Amur region. Kartofel' i ovoshchi, 2018;6:27–28. EDN XQXYPB (in Russ.).
7. Andryushina N. A., Batsanov N. S., Budina L. V. Methodology of research on potato culture, Moscow, Nauchno-issledovatel'skii institut kartofel'nogo khozyaistva, 1967, 263 p. (in Russ.).
8. Methodological guidelines for the maintenance and study of the world potato collection, Saint-Petersburg, VIR, 2010, 30 p. EDN DLUNCD (in Russ.).
9. Methodological instructions on potato breeding process technology, Moscow, Vserossiiskii nauchno-issledovatel'skii institut kartofel'nogo khozyaistva, 2006, 72 p. EDN QKYCYN (in Russ.).
10. Yagodin B. A. (Eds.). Workshop on agrochemistry, Moscow, Agropromizdat, 1987, 512 p. (in Russ.).
11. Pshechenkov K. A., Davydenkova O. N., Sedova V. I., Maltsev S. V., Chulkov B. A. Methodological guidelines for evaluation of potato varieties for suitability for processing and storage, Moscow, Vserossiiskii nauchno-issledovatel'skii institut kartofel'nogo khozyaistva, 2008, 39 p. EDN KNHSOX (in Russ.).
12. Kim I. V., Novoselov A. K., Novoselova L. A., Voznyuk V. P. Findings of agroecological potato seed-trial in the climate of the Primorsky krai. Dal'nevostochnyi agrarnyi vestnik, 2017;3(43):44–49. EDN ZWLBXH (in Russ.).
13. Fitsuro D. D., Makhanko V. L., Serdyukov V. A., Gastilo D. S. Effect of soil drought during the growing season on productivity of potato varieties and hybrids. Proceedings from Kartofelevodstvo. (PP. 24–35), Minsk, 2020. EDN QEOXBG (in Russ.).
14. Zhevora S. V., Simakov E. A., Anisimov B. V. (Eds.). Potato breeding and seed production: monograph, Kraskovo, Vserossiiskii nauchno-issledovatel'skii institut kartofel'nogo khozyaistva, 2020, 189 p. EDN TKHAIY (in Russ.).