Promising potato hybrids in Siberia

The results of studying potato hybrids in the nurseries of preliminary and competitive variety trials are presented. The research was conducted in 2018–2022 in the Krasnoyarsk Territory in grain and fallow crop rotation. The soil of the experimental plot is represented by leached chernozem, low- and medium-moist heavy loam of granulometric composition. Experiment design, yield recording and data processing were carried out in accordance with the generally accepted recommendations for work with the crop. Based on the Selyaninov hydrothermal coefficient, the weather conditions of the vegetation periods of the years of research can be characterized as slightly arid.   The HTC was 1.1 in 2019 and 2021, in 2020, 2022 – 1,3. According to the results of the preliminary variety trials, lines A-114, A-326, A-529, A-635a exceeded or were at the level of the standard variety Krasnoyarsky Ranniy by the number of marketable tubers and yield. During 4 years of research in the nursery of competitive varietal trial, the studied breeding lines on average formed yields at the level or higher than the standard varieties. According to the elements of the yield structure in the competitive variety trial lines A-114, A-529 significantly exceeded the standard variety in marketability, as well as had a smaller number and weight of unmarketable tubers. Based on the results of the evaluation in 2019–2021 of the chemical composition of tubers for dietary and functional food, lines with low starch content (up to 14%) are proposed: A-114 (12.2%), А-672^а (9.9), А-635^а (12.7%). Based on the study in 2019–2022 of the line A-114 in competitive trials, preliminary and production multiplication, ecological assessment, application materials for admission to use and protection of the new potato variety Akrux were submitted to the State Variety Commission.

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