UDC 635.21:631.563
https://doi.org/10.25630/PAV.2023.32.36.001
Mal’tsev S.V., Zeiruk V.N., Andrianov S.V., Shishkova S.G., Timoshina N.A.
The purpose of the research is to determine the effect of a separate (without ethylene) treatment of tubers of gaseous 1-methylcyclopropene (1-MCP) on the keeping quality, biochemical parameters and suitability of potatoes for processing, to identify a varietal reaction to this active substance (if any), and also to evaluate the effect of 1-MCP on the yield of seed potatoes. The research was carried out in 2021–2023 at the experimental base «Korenevo» Russian Potato Research Centre (Moscow region, Lyubertsy). The research included two two-factor laboratory experiments – the first on food potatoes with a storage temperature of 5–6 °C, the second on potatoes intended for processing into fried potato products (fries and crispy potatoes) with a storage temperature of 8–9 °C. It was found that the autumn treatment of potatoes with 1-methylcyclopropene at a dose of 1 ml/m3 did not significantly affect the keeping quality of tubers. The difference by 0.3–0.6% compared to the control did not exceed least-significant difference (05). In the processing variants, there was a tendency to decrease the content of reducing sugars by 0.1–0.3% at 5–6 °C and by 0.1–0.2% at 8–9 °C, which contributed to improving the quality of fried potato products in terms of color by 0.5–1.0 points. This pattern was noted on both studied varieties, but it was most clearly manifested on the Grand variety. The treatment of seed potatoes with 1-MCP did not have a negative impact on the growth and development of potato plants. The difference in plant height of 0.1–0.3 cm in the variants did not exceed least-significant difference (05). The yield of the Pennant and Grand varieties in the aftereffect of the 1-MCP treatment was 23.8 t/ha and 18.9 t/ha, which did not differ significantly from the indicators at the control. Thus, we can conclude about the safety and prospects of using 1-MCP in potato storages when storing chip potatoes according to the scheme: single treatment of 1-MCP from autumn + subsequent gassing with phytohormone ethylene. Further studies should be aimed at establishing optimal ethylene doses that ensure maximum inhibition of tuber germination with such a combined treatment.
Key words: potatoes, 1-methylcyclopropene, store ability, biochemical parameters, yield
Maltsev S.V. (author for correspondence), D. Sci. (Agr.), Head of the potato storage and processing laboratory, Department of the agro-ecological assessment of potato varieties and hybrids. E-mail: stanmalcev@yandex.ru
Zeyruk V.N., D. Sci. (Agr.), Head of the plant protection laboratory, Department of the agro-ecological assessment of potato varieties and hybrids, Russian Potato Research Centre
Andrianov S.V., postgraduate student, junior research fellow of the laboratory of potato storage and processing, Department of the agro-ecological assessment of potato varieties and hybrids
Shishkova S.G., junior research fellow of the potato storage and processing laboratory, Department of the agro-ecological assessment of potato varieties and hybrids
Timoshina N.A., Cand. Sci. (Agr.), Head of the agrochemistry and biochemistry laboratory, Department of the agro-ecological assessment of potato varieties and hybrids
Russian Potato Research Centre
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For citing: Prospects for the use of 1-methylcyclopropene in the storage technology of chip potatoes / S.V. Mal’tsev, V.N. Zeiruk, S.V. Andrianov, S.G. Shishkova, N.A. Timoshina. Potato and vegetables. 2023. No8. Pp. 27-30. https://doi.org/10.25630/PAV.2023.32.36.001 (In Russ.).
