UDC 633.16
DOI 10.36461/NP.2023.68.4.007

SPECIFICS OF DIFFERENT BARLEY VARIETIES YIELD FORMATION UNDER THE FOREST-STEPPE ZONE CONDITIONS IN THE REPUBLIC OF TUVA
Ch.K. Bolat-ool, Candidate ofAgricultural Sciences
Federal State Budgetary Educational Institution of Higher Education "Tuvan State University", Kyzyl, Russia, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The Republic of Tuva belongs to a zone of risky agriculture with a sharply continental climate so the problems of low moisture supply during critical phases of the development of grain crops are especially relevant. Barley is one of the main grain feed crops grown in the Republic of Tuva. The purpose of the current research is to examine the specifics of different barley varieties yield formation under the forest-steppe zone conditions in the Republic of Tuva. The experimental part of the research was conducted in 2020-2022 on the territory of the Piy-Khemsky district, which belongs to the forest-steppe zone. The organized field experiment, records, measurements, and phenological observations were carried out in accordance with the Methodology of the State Commission for Variety Testing of Agricultural Crops; statistical data processing was evaluated by the method of variance analysis according to the method of B.A. Dospehova using the Excel computer software package. The predecessor is pure steam. The soil is dark chestnut light loamy. The estimated area of the plot is 28 m2. Weather conditions are characterized as moderately humid. The duration of the vegetative period for all varieties varied from 23 to 30 days. By weight of 1000 grains, the largest ones were the seeds of the Biom variety; the Abalak variety was inferior to it by 3.0 g. For the Tanai variety, the weight of 1000 grains was 36.5±0.7 g, it has a maximum grain size of 513 g/l, for the Nevan variety – 35.5±0.8 g and the Tulunsky yantar variety – 36.2±0.7 g in accordance with the required qualities. The average yield of the varieties was 17.9-21.5 c/ha. Under the conditions of the forest-steppe zone in the Republic of Tuva in 2020, the increase in the barley seeds yield of the Tanai variety reached 0.7 c/ha when compared with the average yield (23.6 c/ha) in the East Siberian region, according to the varietal features of the originator.
Keywords: barley, yield, varietal features, growing season, phenological phase.

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