ADAPTIVE CAPACITY AND STABILITY OF VARIOUS MORPHOTYPES OF MILLET IN THE CONDITIONS OF THE SOUTH-EAST CENTRAL CHERNOZEM REGION
2022
Surkov, A.Ju. | Surkova, I.V.
The article presents the results of four-years of research conducted in the conditions of the south-east of the Central Chernozem region. A comprehensive assessment of the growing environment by differentiating ability as a background for selection is given. The greatest differentiating ability was revealed in the environments of 2019 and 2020. The environments of 2018, 2019, 2020 can be considered as analyzing backgrounds that contribute to the identification of various biotypes. The environment of 2021 is a leveling background, as it was characterized by unfavorable conditions, low typicality and minimal polymorphism. The assessment of samples of millet of various morphotypes was carried out according to the parameters of adaptive ability and stability, calculated according to the characteristics "yield", "weight of 1000 grains", "number of grains per 1 square meter." Average for 2018-2021 yellow-grain samples were distinguished by high yield and the number of grains per 1 sq. meter, but the lowest mass of 1000 grains. The red- grain samples with a compressed panicle were characterized by the highest mass of 1000 grains. A valuable breeding material of millet has been identified, which is characterized by high adaptive capacity and stability in the conditions of the south-east of the Central Chernozem region. These are red-grain specimens with spreading and with a compressed panicle: Sanguineum 4, Sanguineum 7, Sanguineum 9, Sanguineum 14, Sanguineum 17, Sanguineum 24, Koccineum 3, Koccineum 6, Koccineum 23, Koccineum 13, variety Stepnoe 9 and a yellow-grain specimen with a spreading panicle Flavum 21. Keywords:
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