Purpose: selection of soybean varieties that meet the climatic conditions of Rostov region, adaptable to the cultivation technology on irrigated lands.
Materials and methods. The studies were carried out in Rostov region on heavy loamy meadow chernozem soils. 18 soybean varieties of different ripeness groups were studied in 2019 and 2020. Plot area was 150 sq. m. Sowing was carried out by a wide-row method with a row spacing of 0.7 m at a seeding rate of 500 thousand pieces/ha. Soybean varieties were cultivated in accordance with agricultural techniques in accordance with the zonal farming systems of Rostov region. The trial establishment, observation over the plants development and the onset of the main phenological phases, yield records, as well as statistical processing of the observation results were carried out according to generally accepted methods of conducting field experiments.
Results. The duration of the growing season for soybean varieties has been determined (from 102 to 123 days, depending on the variety). The height of soybean plants in the bean filling stage varied from 81.8 to 123.7 cm. The largest leaf area in the beans filling stage was formed in the varieties Select 201, SK Riana and Select 302 – 71.53; 71.30 and 69.35 thousand sq. m/ha, respectively. The most productive were early ripening and medium early ripening varieties SK Riana, Select 302, Select 201, SK Veda, their average yield for 2 years was 4.45; 4.25; 4.08; 3.97 t/ha, respectively.
Conclusions. Studies devoted to the selection of soybean varieties that meet the natural and climatic conditions of Rostov region and are adaptable to the cultivation technology on irrigated lands have shown that the SK Riana, Select 302, Select 201, SK Veda varieties of “Soy Complex” Company. The Annushka variety (3.80 t/ha), zoned for the Central Black Earth region, and the VNIIOZ selection varieties Volgogradka 1 (3.81 t/ha) and Volgogradka 2 (3.78 t/ha), zoned for Lower Volga region were the most promising.
doi: 10.31774/2222-1816-2021-11-1-47-66
variety, growing season, cultivation, ripening period, irrigation, yield
Balakay G. T., Selitskiy S. A. Assessment of soybean varieties agrobiological properties for irrigated lands of Rostov region // Scientific Journal of Russian Scientific Research Institute of Land Improvement Problems [Electronic resource]. 2021. Vol. 11, no. 1. P. 47–66. URL: http:www.rosniipm-sm.ru/en/article?n=1177 (date of access: 16.02.2021). doi: 10.31774/2222-1816-2021-11-1-47-66.
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