Characterization of spring barley lines in a competitive cultivar trial

Abstract

The results of evaluation of spring barley lines belonging to different varieties bred at the Plant Production Institute are presented. Lines of the hulled group (nutans Schűbl., rikotense R. Red, medicum Koern., pallidum Ser.) and hulless variety nudum Koern were distinguished.

The aim and tasks of the study. The study purpose was to create and evaluate hulled lines of two-row and multi-row spring barley as well as a hulless spring barley variety with high yield capacity and lodging resistance.

Materials and methods. The studies were conducted in a competitive cultivar trial at the Plant Production Institute nd. a V. Ya. Yuriev of NAAS. The staring material was spring barley lines created by hybridization of different cultivars and collection accessions of different origin. The data on yield capacity were statistically processed using analysis of variance according to the BA Dospekhov’ procedure.

Results and discussion. High-yielding spring barley lines were created in the Laboratory of Barley Breeding and Genetics of Plant Production Institute nd. a V. Ya. Yuriev of NAAS . The best of them were generated by using cultivars ‘Efekt’, ‘Etiket’, ‘Parnas’, ‘Feniks’, ‘Dzherelo’, ‘Vyklyk’, and ‘Lad’ bred at the Plant Production Institute; ‘Vakula’ bred at the Plant Breeding and Genetics Institute; ‘Omskiy Golozerniy1’ (RF); accessions UA 039699, UA 039701 (USA); IR 6576, IR 6912 (Mexico); Ebson (Czech Republic); and Tokada (Germany) as starting material in crosses. The average yield capacity of lines for two years was in the range from 5.54 t / ha (104% of the standard) to 6.20 t / ha (116% of the standard), with 5.32 t / ha in the standard ‘Vzіrets’. As for the vegetation period length, the test lines were sorted as middle-ripening (82-90 days). An important feature of barley is its lodging resistance; it was different in the test lines: 7.0 - 8.5 points in 2014 and 7.0-8.5 points in2015. In 2015, the grain-unit was moderate (655-695 g / L) in hulled lines and high (705-780 g / L) in hulless ones, which is attributed to the shape of caryopsis.

Conclusions. We identified lines with a complex of valuable economic traits; among them were two-row hulled lines 06-652, 12-486, 12-116, 12-333, and 12-1014; multi-row hulled lines- 12-476 and 12-1131; hulless line 13-728. The lines distinguished are valuable starting material for breeding.