UDC 635.216:64.2.034.15
https://doi.org/10.25630/PAV.2021.51.84.005
Mityushkin A.V., Zhuravlev A.A., Mityushkin Al-r. V., Gaizatullin A.S., Salyukov S.S., Ovechkin S.V., Semenov V.A., Simakov E.A.
In 2018-2020, a comparative study of high-starch potato varieties was carried out according to the intensity of starch accumulation and the size of starch grains. Field and laboratory studies were carried out at the experimental bases «Pyshlitsy» and «Korenevo» FPRC of named after A.G. Lorkh (Moscow region). Six varieties of potatoes of their own selection of medium-early (Artur, Sadon) and medium-ripe (Avangard, Kaskad, Nakra, Sineglazka 2016) maturation dates were used as the starting material in the experiments. The object of research is native starch obtained according to GOST 7699-78 from tubers for determining the size of starch grains by a non microscopic method. The variability of the starch content of the studied varieties was established, taking into account genotypic features, maturation periods and growing conditions. The most stable in terms of starch accumulation in tubers of the varieties Artur, Kaskad, Nakra and Sineglazka 2016 were identified. Differences in starchiness between medium and small tubers the same varieties are more significant in comparison with the differences between medium and small tubers. In the summer sample, according to the level of starchiness of tubers, the varieties Nakra (20.0%) and Kaskad (19.2%) were distinguished in comparison with the standard variety Zarevo (19.6%), as well as the varieties Artur and Sineglazka 2016 with a starchiness of 18.6 and 18.5%, respectively. When analyzing highly starchy varieties, it was shown that the largest number of starch grains in the starch composition is more than 57 microns contained in the tubers of the varieties Nakra (60.8%), Sineglazka 2016 (60.5%), Kaskad (55.7%) and Artur (56.3%).
Key words: potato (S. tuberosum), variety, starchiness, native starch, quality
Mityushkin A.V., Cand. Sci. (Agr.), head of the laboratory for selection of varieties for processing
Zhuravlev A.A., Cand. Sci. (Agr.), senior research fellow, experimental gene pool department
Mityushkin Al-r.V., Cand. Sci. (Agr.), senior research fellow, experimental gene pool department
Gaizatulin A.S., junior research fellow, experimental gene pool department
Salyukov S.S., research fellow, laboratory for selection of varieties for processing
Ovechkin S.V., research fellow, laboratory for selection of varieties for processing
Semenov V.A., research fellow, laboratory for selection of varieties for processing
Simakov E.A., D. Sci (Agr.), head of the experimental gene pool department
Federal Potato Research Centre after A.G. Lorkh. E-mail: vniikh@mail.ru
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For citing: Evaluation of highly starchy potato varieties by the intensity of starch accumulation and the size of starch grains. A.V. Mityushkin, A.A. Zhuravlev, Al-r. V. Mityushkin, A.S. Gaizatullin, S.S. Salyukov, S.V. Ovechkin, V.A. Semenov, E.A. Simakov. Potato and vegetables. 2021. No8. Pp. 29–33. https://doi.org/10.25630/PAV.2021.51.84.005 (In Russ.).
