UDC 635.21:631.532
https://doi.org/10.25630/PAV.2025.50.35.006
Zebrin S.N., Zhuk O.Yu., Derevyagina M.K., Mityushkin A.V., Zhuravlev A.A., Simakov E.A., Anisimov B.V.
The article presents the results of comparative field trials of variety samples selected from lots of original and elite seed potatoes in order to confirm their compliance with regulatory requirements regarding varietal identity, varietal purity and symptoms of diseases controlled in potato seed production. The experimental plots is located at the Korenevo scientific base of the «Lorkh Potato Research Center» (Moscow Region). The soil is sod-podzolic sandy loam. The predecessor is a busy steam with the sowing of sidereal crops. Mineral fertilizers were applied when cutting the ridges in doses of N90P90K120. Cultivars selected from seed potato lots for comparative verification tests were planted in two parallel rows using a 75x30 cm planting pattern, with a plot area of 25 m2. In the 2022-2024 seasons, 171 cultivars of the first field generation from mini tubers, 156 samples of super-super elite and 195 samples of super elite were evaluated, obtained from 40 producers of original and elite seed potatoes for comparative field trials. Based on the results of the assessments carried ont on the totality of varietal characteristics of the plant, stem, leaf, inflorescence, the presence of plants with deviations in the typicality of varietal characteristics was revealed in 4 samples of the first field generation of mini tubers, 4 samples of super-super elite and 5 samples of super elite. Varietal admixtures were detected in 7 samples of the first field generation, 11 samples of super-super elite and 8 samples of super elite. Exceeding the established tolerances of the standard for viral diseases (YBK) was detected in 26 samples of the first field generation of mini-tubers, 26 samples of super-super elite and 10 samples of super elite. Plants with external signs of bacteriosis damage controlled by the tolerances of the standard (black stem) were found in 12 samples of super-super elite and 30 samples of super elite. The indicators of plant productivity and crop structure varied depending on the conditions of the season, the ripening time of the varieties and mainly corresponded to their varietal characteristics.
Key words: seed potatoes, variety samples, soil control, varietal identity and purity, disease symptoms
Zebrin S.N., Cand. Sci (Agr), leading research fellow of selection department
Zhuk O.Y., research tellow of selection department
Derevyagina M.K., Cand. Sci (Biol), senior research fellow of plant protection department
Mityushkin A.V., Cand. Sci (Agr), leading research fellow, head of the laboratory for selection of varieties for processing
Zhuravlev A.A., Cand. Sci (Biol), senior research fellow of selection department
Blinkov E.G., head of seed production department
Simakov E.A., D. Sci., professor, chief, research fellow, head of selection department
Anisimov B.V., Cand. Sci. (Biol), head of the laboratory of variety identification and soil control of the original potato seeds Lorkh Potato Research Center
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PDF(Rus)
For citing: Assessment of the quality of seed potatoes lots by the method of comparative field trials of variety samples. S.N. Zebrin, O.Yu. Zhuk, M.K. Derevyagina, A.V. Mityushkin, A.A. Zhuravlev, E.A. Simakov, B.V. Anisimov. Potato and vegetables. 2025. No4. Pp. 44-49. https://doi.org/10.25630/PAV.2025.50.35.006 (In Russ.).
