Productivity of barley varieties depending on growth promoter application

Abstract

The use of biological products as an element of agricultural technology, according to many scientists, is the most important technique that helps increase the productivity of grain crops including barley. The research goal is to evaluate the response of barley varieties to the application of growth promoters in the formation of productivity characters and the amount of yield under the conditions of the Altai Region’s Ob River area. The research was carried out in 2020 and 2021. The research targets were as following: four fodder-grain barley varieties Aley, Zolotnik, Kolchan and Salair; 2 malting barley varieties Vorsinskiy-2 and Signal. The research subject was the effect of growth promoters on barley variety productivity. The following products were used as growth promoters: Zerebra Agro and Lignogumat. The seeds were treated with the products before sowing and during the growing season at the stage “tillering - stem elongation beginning” in doses recommended by the manufacturer. Significant variability was revealed in the varieties, experiment variants with growth promoter treatment, and over the years of research. In the control variant (without any treatment), the yields on both years of research were lower than those in the variants with treatment. Among fodder-grain varieties, the maximum yield was obtained from the Altayskiy 10 variety - 1.96 t ha in 2020, and 2.24 t ha in 2021; in the group of malting barley - from the Vorsinskiy 2 variety - 1.67 t ha (2020) and 1.91 t ha (2021). On average, over two years of research, the yields on the variants treated with the products varied from 2.13 t ha (Signal variety, Zerebra Agro) to 3.34 t ha (Aley variety, Lignogumat). It was found that the Lignogumat product had greater effect on the yields of the following varieties: Zolotnik, Aley, Vorsinskiy 2, and Signal. The Altayskiy 10 and Salair varieties responded positively to the Zerebra Agro product.