Determination of Grain Yield and Nutrition Traits in Hull-less Barley Genotypes

Naked barley is a multi-purpose cereal crop grown for feed, food and malting worldwide. In recent years, with the understanding of health benefits and significance in human nutrition, there is an increasing interest in quality characteristics as well as grain yield of naked barley. In this study, grain yield, yield components and some quality traits of 25 naked barley genotypes grown in three consecutive years were studied. The study was carried out during the 2016–2017 and 2017–2018 growing seasons in Turkey. The combined variance analysis results showed that the years and genotypes had highly significant effects on all the examined characteristics. As the average of years, mean grain yield of genotypes ranged from 2.40 (G21 numbered genotypes) to 4.18 (G18 numbered genotypes) t ha⁻¹. The genotype G5 had values greater than the averages in all traits, except for thousand-grain weight, fat, starch content and asit detergent fibre while the genotype G3 and G5 had values greater than the averages in all traits, except for hectoliter weight, fat content and protein content. The biplot analyses revealed that grain yield had positive correlations with spike length, plant height, number of grains per spike, protein, β‑glucan, neutral detergent fibre