The influence of agroecological growing conditions on the accumulation and quality of starch of new promising potato varieties

Posted on 13.06.2023 by Саша Корнев
UDC 633.491:631.527
https://doi.org/10.25630/PAV.2023.12.65.004

Salyukov S.S., Mityushkin A.V., Zhuravlev A.A., Mityushkin Al-r V., Gaizatulin A.S., Semenov V.A.

The purpose of the study is a comparative study of the intensity of starch accumulation and the size of starch granules of new promising potato varieties suitable as raw materials for processing. Field and laboratory studies were conducted in 2020–2022 at the experimental bases «Pyshlitsy» and «Korenevo» of the RPRC named after A.G. Lorkh (Moscow region). As a starting material for the study, six new potato varieties of the RPRC named after A.G. Lorch were used for medium-early (Arthur, Armada) and medium-ripe (Kumach, Vostorg, Extra, Phobos) ripening periods. The soil is sod-podzolic cohesive-sandy in granulometric composition. The predecessor is barley, spring wheat. Mineral fertilizers in the form of ammonium were applied at the rate of 700 kg/ha of physical weight. Cleaning was carried out manually in the second decade of September. Comparative tests of six highly starchy potato varieties have shown significant variability of the starchiness trait depending on genotypic features, maturation dates and growing conditions. The most stable in terms of starch accumulation in tubers were the varieties Arthur, Vostorg, Extra and Phobos. The differences in starchiness between medium and large tubers of the same variety are more significant than the differences between medium and small tubers, which necessitates sampling among the fraction of medium tubers when determining the starch content. When evaluating highly starchy varieties in the summer sample, the Extra variety stood out with high rates of starchiness of tubers (≥18%), surpassing the Nakra standard variety (19.6%) in terms of starch accumulation (20.0%) and the Rapture variety, providing the same level of starchiness of tubers (19.2%). The analysis of highly starchy varieties showed that the Extra and Phobos varieties with a starchiness of tubers of 22.0 and 20.3% contain the largest number of large starch granules larger than 57 microns in starch, and the Arthur and Vostorg varieties with a starchiness of 21.2–21.6% – 56.3 and 55.7%, respectively.

Key words: potato (S. tuberosum), variety, starchiness, native starch, quality

Salyukov S.S., research fellow, laboratory for selection of varieties for processing. E-mail: vniikh@mail.ru

Mityushkin A.V. (the author for correspondence), Cand. Sci. (Agr.), head of the laboratory for selection of varieties for processing. E-mail: vniikh@mail.ru

Zhuravlev A.A., Cand. Sci. (Agr.), senior research fellow. E-mail: vniikh@mail.ru

Mityushkin Al-r V., Cand. Sci. (Agr.), senior research fellow, experimental gene pool department. E-mail: vniikh@mail.ru

Gaizatulin A.S., Cand. Sci. (Agr.), research fellow, experimental gene pool department. E-mail: vniikh@mail.ru

Semenov V.A., research fellow, laboratory for selection of varieties for processing. E-mail: vniikh@mail.ru Russian Potato Research Center

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For citing: The influence of agroecological growing conditions on the accumulation and quality of starch of new promising potato varieties / S.S. Salyukov, A.V. Mityushkin, A.A. Zhuravlev, Al-r V. Mityushkin, A.S. Gaizatulin, V.A. Semenov. Potato and vegetables. 2023. No6. Pp. 32-35.  https://doi.org/10.25630/PAV.2023.12.65.004 (In Russ.).

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