Evaluation of advanced mutant lines of winter barley

Boryana Dyulgerova and Nikolay Dyulgerov

Abstract: The aim of this study was to evaluate grain yield and some yield related traits of sodium azide-induced mutant lines from the winter barley varieties Zagorets, Asparuh and Imeon. Ten mutant lines from variety Zagorets, 10 mutant lines from variety Asparuh and 9 mutant lines from variety Imeon along with the 3 parent varieties were evaluated in Complete Block Design with four replications. The study was conducted in 3 years (from 2014/2015 to 2016/2017) in the experimental field of the Institute of Agriculture – Karnobat, South-eastern Bulgaria. Significant differences among the mutant lines derived from the same parental variety and also among themselves for all of the studied traits were found. Grain yield of studied mutant lines had a positive correlation with peduncle length and the grain weight per spike. The mutant lines 17/2-1, 17/1-15, 15/1-5 and 15/1-17 exhibited significantly higher and stable grain yield than the parental varieties and therefore can be selected for further evaluation for variety release and for using in the hybridization program.

Keywords: compost; manure; remontant strawberry; soil microorganisms; yield

Date published: 2020-08-28