Adaptability and comparative characteristics of Russian mid-early potato varieties in the forest-steppe of the Novosibirsk region

The research data of 2022-2024 on mid-early potato varieties of Russian breeding under the forest-steppe conditions of the Novosibirsk Region’s Ob River area are discussed. The research targets were 22 Russian mid-early potato varieties. The foreign variety Gala leading in terms of crop area in the Russian Federation was the standard variety. The average yield over the years of research over 35 t ha was obtained from 2 varieties: Samorodok and Shakh. Based on the adaptability coefficient (AC) calculations, the following varieties stood out: Alka (AC = 1.31), Samorodok (AC = 1.37) and Shakh (AC = 1.38) which indicated their high adaptability and productivity. Based on field resistance to late blight, five potato varieties were identified that demonstrated a resistance score of over 7 score points: Artur, Dvinskiy, Rozoviy Charodey, Ariel, Farn and Shakh. The highest taste score (9 points) was revealed in the Dana variety. The highest starch content was found in the Vychegorskiy (19.12%) and Artur (17.85%) varieties. The dry matter content reached the maximum values in the Dogota (29.05%), Vychegorskiy (28.60%) and Artur (28.29%) varieties. The Artur variety demonstrated excellent taste qualities and high indices for both chips (8 points) and French fries (8 points). The Farn variety also showed high suitability for French fries (9 points) which made it promising for this area of processing. The determination of biochemical indices of the potato samples was conducted with the support of the budget project of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, No. FWNR-2022-0008. The field study of collection accessions was carried out with the support of the budget project of the Institute of Cytology and Genetics SB RAS No. FWNR-2023-0011.