Grain quality of Hordeum vulgare L. depending on the growth regulators

Abstract

Relevance. In recent years, there has been a tendency to reduce the acreage of Hordeum vulgare L. In view of this, it is necessary to look for techniques to ensure the stability of gross grain collections. Especially considering its versatile use in the food industry and feed industry.Methods. The experiments were conducted in 2022 in the conditions of the Azov sea zone of the Rostov region. The objects of research are varieties of spring barley (factor A) Leon, Yarunchik, Prairie and growth regulators (factor B) “Artafit” (0.3 l/ha), “Biodux” (3 ml/ha), “Obereg” (60 ml/ha), “Trainer” (3 l/ha), “Fulvohumate” (0.4 l/ha), used in the “tillering” and “earing” phases.Results. The highest yield was formed by barley plants under the action of the drug «Biodux» in Leon and Prairie varieties. Under the influence of Biodux, the grain had a large natural mass in all the studied varieties — from 622 to 630 g/l. The weight of 1000 grains in the variants with the use of growth-regulating substances exceeded the control, especially with the use of Biodux: 3.5 g more control in the Leon variety, 5 g more in the Yarunchik variety, 3.1 g more in the Prairie variety. The largest number of feed units has been received: in the Leon variety — when using the preparations «Biodux» and «Obereg», in the Prairie variety — the preparation «Biodux» (4.49 t /ha). More than 3 t/ha of digestible protein was obtained from Leon and Prairie varieties with “Biodux” preparation — 3.15 t/ha and 3.14 t/ha, respectively.