K. A. Koloshina, N. I. Polukhin, G. H. Myzgina
Siberian Research Institute of Plant Growing and Breeding – the branch of the federal state budgetary scientific institution «Federal Research Center the Institution of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences», ul. S-100, zd. 21, a/ya 375, pos. Krasnoobsk, Novosibirskii r-n, Novosibirskaya obl., 630501, Russian Federation
Abstract. The research was aimed at studying the reaction of plants of potato varieties of different ripeness groups to cultivation under conditions of an aeroponics system. The work was conducted in six single-tier universal aeroponics systems, in a nutrient solution based on the Murashige and Skoog medium provided by the developer. We grew mini-tubers of Gala, Darenka, Red Scarlett, Tuleevsky, Zlatka, and Rozara varieties. Each of them was placed in at least one system (16 plants). The mini-tubers were grown in summer, autumn-winter, and winter cycles lasting from May 19 to September 30, from August 15 to December 13, and from September 25 to March 27, respectively. Aeroponic technology allowed collecting from 31.0 to 72.7 mini-tubers from 1 plant. In the early-ripening group, the highest value of this indicator was observed in the Rosara variety (72.7 pcs/plant), the mid-early variety Gala yielded 31.0–43.5 mini-tubers, mid-ripening varieties Tuleevsky and Zlatka yielded 36.4–40.8 tubers per plant. In continuous autumn-winter and winter cycles, seasons unusual for field crops cultivation, the duration of tuberization increased by 7–19 days and 45–49 days, respectively, depending on the variety. The total length of the root system in the test tube culture increased by 24–47 cm, and by 97–247 m when grown in the aeroponic systems. This could be caused by a slowdown in metabolism in plants, which is compensated by the work of the root system. Under conditions of the aeroponic system, mid-ripening varieties began tuberization simultaneously with early-ripening ones. The growing time was also almost the same for all varieties.
Keywords: aeroponics; mini-tubers; potato; biotechnology; varieties; tuberization; planting; growing.
Author Details: K. A. Koloshina, junior research fellow (Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); N. I. Poluhin, Cand. Sc. (Agr.), leading research fellow; G. H. Myzgina, senior research fellow.
For citation: Koloshina KA, Poluhin NI, Myzgina GH. [Reaction of potato varieties to the aeroponic technologies at mini-tubers growing]. Dostizheniya nauki i tekhniki APK. 2020;34(1): 26-30. Russian. doi: 10.24411/0235-2451-2020-10105.