ADAPTIVITY OF NEW VARIETY OF OMSKIY 101 SPRING BARLEY

The authors see the creation of potentially high-yield varieties of barley adapted to the conditions of a particular region as a priority for selection. The study characterizes a new two-row variety of spring barley Omskiy 101 in terms of yield and adaptability for the conditions of the southern forest-steppe in Western Siberia. Comprehensive studies were carried out on the experimental fields of Omsk ANC premises from 2014 to 2018. The originator of spring barley Omskiy 101 was the Federal State Budget Scientific Institution Omsk ANC. A parental material was taken from the variety given by the Vavilov Federal Research Center Russian Institute of Plant and Genetic Resources. The variety Omskiy 101 belongs to the forest-steppe ecological group of varieties, drought tolerant, midseason, resistant to lodging. Distinctive features: average height; semi-straight, medium thickness and strenght stem, the color of the stem nodes brown; the average width of the leaf, the absence of pubescence on the vaginas of the lower leaves, the presence of a wax coating; two-row, membranous, spinous spike of cylindrical shape; the transition of flower scales to the spine is gradual, the nerve is poorly expressed; the spines are long, smooth, parallel to the spike, of medium roughness; possible anthocyanin coloration of tips and serration, hairy bristles; the grain is yellow, filmy, semi-elongated, large. The variety is highly harvested in Western Siberia (an increase of 0.55 t/ha to the standard in the Southern forest-steppe zone and 0.38 t/ha in the steppe on average for the period of research from 2014 to 2018). The variety is characterized by responsiveness to improved growing conditions as determined by S.A. Eberhart, W.A. Russell (bi = 1,1), and according to the methods proposed by A.A. Gryaznov (IEP = 1.05) and C. Wricke (Wi = 0.20). The studied variety was also characterized by increased stability (σ2d = 0.1 according to S.A. Eberhart and W.A. Russell) and adaptability (KA = 104.6% according to L.A. Zhivotkov). The variety was submitted for state variety testing in 2018 in the Ural (9), West Siberian (10) and East Siberian (11) regions.

variety, barley, adaptability, stability, plasticity, stress resistance, homeostaticity

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