FODDER PRODUCTIVITY OF OATS VARIETIES AND LINES IN COMPETITIVE VARIETY TRIAL IN THE FAR EAST AGRO-CLIMATIC CONDITIONS

Abstract

A study of the fodder productivity of varieties and selection lines of spring oats was carried out. Field experiments were laid in a competitive study nursery in the fields of a selection crop rotation of the Far East Agricultural Research Institute in 2016-2020. As a result of studying the fodder productivity of oats, varieties and breeding lines were identified: Marshal, Cardinal, Peredovik, Far Eastern fodder, Far Eastern gold 437-05, 392-15, 474-14, combining high grain productivity (from 8.0 t/ha to 8.9 t/ha), green mass (from 79.8 t/ha to 90.3 t/ha) and dry matter (from 11.1 t/ha to 12.8 t/ha). It was found that the duration of the sprouting-sweeping phase depended on the average daily air temperature (r = -0.697) and the amount of precipitation (r = 0.847). Leafiness of plants (r = 0.521), due to the size of leaves (r = 0.643), made a significant contribution to the formation of the yield of green mass in our studies. A positive relationship has been established between productive tillering and grain yield (r = 0.532), green mass yield (r = 0.548), and dry matter collection (r = 0.511). An indirect role in the formation of the yield of green mass of oats is played by plant height (r = 0.451) and lodging resistance (r = 0.421). The yield of green mass of oats in the soil and climatic conditions of the Far East region depends to a greater extent on the leaf area (r = 0.621) than on the plant height (r = 0.451).