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- W4386636611 abstract "The purpose of the current study was to develop a new spring barley variety that can form consistently large productivity in different soil and climatic conditions, including regions with frequent droughts. As a result of breeding work at the experimental breeding station ‘Prikumskaya’, a branch of the FSBRI “North Caucasus FRAC”, there was developed a new spring barley variety ‘Stepnyak’ in 2009–2020. The new genotype was obtained as a result of intraspecific hybridization, followed by individual selection from the hybrid population of Nutans g-74840 (EBS ‘Prikumskaya’, a branch of the FSBRI “North Caucasus FRAC”) and Special (ICARDA, Syria). According to maturation terms, the variety belongs to the group of middle maturing varieties. The vegetation period lasts from 75 to 87 days. The new variety has high drought and heat resistance, resistance to lodging and damage by net blotch. During 2020–2022 at the EBS ‘Prikumskaya’, the new variety ‘Stepnyak’, in comparison with the standard, was characterized by a higher productive stem stand with 353 pcs/m2 (+9 pcs. to the standard), number of grain peer head with 21 pcs. (+6 pieces to the standard) and grain yield per total mass of a plant 39.1% (+4.5 % to the standard). The mean variety productivity in the Competitive Variety Testing was 2.42 t/ha and was higher than that of the standard variety ‘Strannik’ on 0.32 t/ ha (15.2 %). The high adaptation of the new variety to changing environmental conditions makes it possible to form a stable productivity increase to the standard variety ‘Strannik’. In 2020, at the EBS ‘Prikumskaya’, with a significant moisture deficit, the variety ‘Stepnyak’ exceeded productivity of the standard variety on 0.30 t/ha. In a more favorable 2021 and 2022 the yield increase varied from 0.24 to 0.43 t/ha. When studying the variety in the Kalmyk Research Institute of Agriculture (in 2021 and 2022), the yield increase to the standard variety ‘Strannik’ was 0.25 t/ha (12.8 %). During the years of the State Variety Testing (2021 and 2022) in the North Caucasus and Low Volga regions, the new variety ‘Stepnyak’ exceeded productivity of the standard on 0.17–0.18 t/ha, respectively. In 2023, the variety ‘Stepnyak’ was included in the State List of Breeding Achievements and recommended for cultivation in the North Caucasus and Lower Volga regions." @default.
- W4386636611 created "2023-09-13" @default.
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- W4386636611 date "2023-09-12" @default.
- W4386636611 modified "2023-10-18" @default.
- W4386636611 title "New spring barley variety ‘Stepnyak’" @default.
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- W4386636611 doi "https://doi.org/10.31367/2079-8725-2023-87-4-59-64" @default.
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