Agroecological passport of the Krasnoyarskaya 12 spring soft wheat variety

Abstract

This paper discusses the agrotechnical features of the soft spring wheat variety Krasnoyarskaya 12 included in the state register for the East Siberian region. The experiments were conducted from 2021 through 2023 at the state variety site of the Krasnoturanskiy District and the permanent study area of the UNPK Borskiy of the Krasnoyarsk State Agricultural University (Sukhobuzimskiy District) in the steppe and forest-steppe zone of the Krasnoyarsk Region. The preceding crop was spring wheat and black fallow with an intensification complex. Regarding the economic characters revealed over the years of research, the variety belongs to the 1st class wheat. Protein content is more than 14.5%, gluten content - from 37.1 to 43.5%, and gluten quality varies from 52.5 to 67.4 units. The gluten deformation index belongs to the 1st quality group (from 43.0 to 77.0 units of GDI). Increase of average indices was revealed in the steppe zone, and after black fallow with intensification. After a cereal preceding crop (the second wheat after black fallow) under cultivation technology with a full range of intensification, the yields were as following: 5.94 t ha in the steppe zone; and 2.42 t ha in the forest-steppe zone. After black fallow in the steppe zone - 6.48 t ha; in the forest-steppe zone - 4.98 t ha. During variety testing, annual leaf spot damage was observed in the steppe and forest-steppe zones caused by genera Alternatia and Bipolaris with predominance of Alternaria representatives. The average score ranged from 0.28 to 1.18 depending on the growing area and intensification means. From 2021 through 2023, no brown rust damage was observed on plants of the Krasnoyarskaya 12 variety against all cultivation backgrounds in the forest-steppe and steppe zones.