Yield structure of crambe (Crambe abyssinica Hochst.) under the effect of seeding rate and varietal characteristics

Purpose. To establish an optimal seeding rate for different varieties of crambe (Crambe abyssinica Hochst) based on its influence the formation main elements yield structure in conditions Right Bank Forest Steppe.
 Methods. Crambe ‘Belenzian’ (USA) and ‘CRA 5/79’ (Germany) were studied field (Cherkasy region) years 2020–2022. The crop was sown at beginning May a continuous row method rates from 1.0 to 3.5 m seeds per hectare depth 3–5 cm. Before harvesting, preservation biometric indicators plants recorded, after which seed determined. harvest harvested by direct harvesting moisture content 15%.
 Results. Regardless rate, before (on average according experiment) somewhat higher variety – 72.8 against 70.4% 5/79’. lowest both (64.1–67.6%) recorded sowing (1.0 1.5 seeds/ha) highest (74.3–78.1%) (3.0 seeds/ha); height 73–90 cm average, reaching maximum 2.0 2.5 seeds/ha. An increase 3.0–3.5 seeds/ha led significant decrease plant height. longest pods (4.7 4.5 cm) noted seeds/ha, while 5/79’, (3.3 obtained respectively. number (144 146 ‘Belenzian’; 130 135 5/79’), weight one (8.51 878 g 8.04 8.23 respectively) 1000 (8.78 9.00 7.89 8.01 g, million At same rates, 2.12 2.23 t/ha, respectively, 2.04 2.00 t/ha 3.0 respectively.
 Conclusions. Seeding has impact that are and, ultimately, seeds. values most with then gradually decreasing. point view high is research results can be used improve cultivation technology growing Steppe Ukraine.