ASSESSMENT OF ADAPTIVE FEATURES OF SPRING BARLEY IN THE STEPPE OF SIBERIAN PRIIRTYSHYA

The authors speak about relevance of creation and application of new generation of glumaceous and huskless spring barley varieties with high, stable yields in Western Siberian region. Barley productivity in the steppe regions of Siberia remains low and unstable due to insufficient and unstable precipitations. The researchers used the research results received in 2011 - 2016 and calculated and analyzed the parameters of plasticity, stability and ultrastability of barley varieties. The objects of research were 7 varieties of glumaceous and 2 forms of huskless spring barley bred in Siberian Research Institute of Agriculture, recommended for cultivation in the region. The average crop yield was 3.3 t/ha, which exceeded the standard crop yield of Sasha and Omskiy 100 varieties on 13.3 and 11.3%. For complete assessment of varieties adaptability, it is necessary to use a combination of indicators: regression coefficient (bi), stability variants (Ϭ2d), stability indicator of the variety (PUSS), ultrastability (Nom), adaptability coefficient (KA). When several methods are applied, the assessment is carried out by means of the total ranks obtained by each method. The paper highlights the varieties that were the highest and lowest on the ranks; the most adaptive ones are Sasha (the total rank is 8.0), Omsk 100 (14.0), Omsk 95 (20.0) and Siberian avangard (20.0).

spring barley, crop yield, stability, plasticity, ultrastability

1. Anis’kov N. I. Popolzuhin P. V. Jarovoj jachmen» v Zapadnoj Sibiri (Spring barley in Western Siberia), Selekcija, semenovodstvo, sorta: Monografija, Omsk: OOO, Variant, Omsk, 2010, 338 p.

2. Surin N. A., Zobova N. V., Ljahova N. E. Sozdanie sortov jarovogo jachmenja, maksimal’no ispol’zujushhih bioklimaticheskij potencial (The creation of varieties of spring barley, maximum use of bioclimatic potential), Zadachi selekcii i puti ih reshenija v Sibiri, Dokl. genet. – selekc. shkoly. Novosibirsk, 2000, pp. 147–152.

3. Fedulova N. M. Selekcija jarovogo jachmenja v Zapadnoj Sibiri (Breeding of spring barley in Western Siberia), Selekcija jachmenja i ovsa, Moscow, 1971, pp. 139–146.

4. Gryaznov A. A. Golozernyj yachmen», perspektivnaya zernofurazhnaya kul’tura (Hulless barley – a promising forage culture), Proceeding of the International Scientific-Technical Conference, Chelyabinsk, 2010, 230 p. (In Russ.)

5. Dospehov B. A. Metodika polevogo opyta (Methods of field experience), Moscow, Agropromizdat, 1985, 35 p.

6. Eberhart S. A. Ctop, sci, 1966, No. 1 (6), pp. 36–40.

7. Wricke C. Z. Ptlanrenruchtug., 1962, No 1 (47), pp. 92–96

8. Hangil’din V. V. Asfondiyarova R. R. Biologicheskie nauki, 1977, No. 1, pp. 116–121. (In Russ.)

9. Zhivotkov L. A., Morozova Z. A., Sekatueva L. I. Selekciya i semenovodstvo, 1994, No 2, pp. 3–6. (In Russ.)

10. Nettevich Je. D. Morgunov A. I., Maksimenko M. I. Vestnik s. – h. nauki, 1985, No. 1, pp. 66–73. (In Russ.)

11. Gosudarstvennyj reestr selekcionnyh dostizhenij, dopushhennyh k ispol’zovaniju: sorta rastenij (The state register of breeding achievements approved for the use of: varieties of plants), MSH RF, FGU Gosudarstvennaja komissija RF, Moscow, 2016, p. 504.