Yield and main quality indicators of potato samples in competitive testing

The purpose of the study is to evaluate potato breeding numbers in a competitive trial for the best economically valuable traits for their transfer to the state variety trial. Objectives are to evaluate potato samples in terms of yield, main quality indicators and intended use. Field experiments were carried out on the basis of the educational-scientific-production complex Borsky (UNPK Borsky) of the Federal State Budgetary Educational Institution of Higher Education Krasnoyarsk State Agrarian University, territorially located in the Sukhobuzimsky District, the village of Borsk (N56°26′15″ E92°54′11″), 50 km north of Krasnoyarsk. Experimental fields are located in the closed forest-steppe part of the Krasnoyarsk forest-steppe. Field experiments were carried out on leached chernozem, heavy loamy granulometric composition. The objects of study were 35 samples of potato lines of different origin. Standard varieties Krasnoyarsky Ranniy (ripeness group 03) and Tuleevsky (05) were placed through 4 samples in competitive testing. According to a comprehensive assessment of the main phytopathogens, lines A-116, B-29 (susceptibility to the golden potato nematode), A-122 (susceptibility to the nematode, tuber damage by late blight 8 %) were rejected. Based on the results of a three-year study, promising lines for various intended uses were selected from the competitive test nursery. For dietary and functional nutrition, lines with a low starch content (up to 14 %) are offered: A-114 (12.2 %), A-672a (9.9) A-635a (12.7 %); According to the content of dry matter and reducing sugars, which characterize the suitability of tubers for processing into fries, chips and crisps, new lines B-33, B-35, B-21, B-9 are of interest. On average, for all the years of the study, the breeding lines formed the yield at the level or higher than the standard varieties of Krasnoyarsky Ranniy and Tuleevsky. The new breeding material meets the goals and objectives set during implementation under the Federal Scientific and Technical Program for the Development of Agriculture for 2017-2025 "Development of breeding and seed production of potato varieties adapted to growing conditions in the Krasnoyarsk Region and Eastern Siberia".