Evaluatıon Of Yıeld And Some Qualıty Characters Of Wınter Barley (Hordeum Vulgare L.) Genotypes Usıng Bıplot Analysıs

Abstract

In this study, it was used 19 winter barley advanced lines which are selected from regional yield trials and 5 cultivars (TARM-92, Aydanhanım, Sladoran, Karatay-94 and Kalaycı-97) in order to determine grain yield and some quality traits under ecological condition of Diyarbakır. The experiment was conducted in 2004-2005 growing seasons in Diyarbakır under rainfed conditions, with randomized complete block design with 3 replications. Grain yield and different quality traits were considered: test weight (HLT), thousand kernel weight (TKW), grain protein content (PC), starch value (STR) and 2.5-2.8 mm sieve ratio (SV). According to the results; the highest grain yield obtained from G16 (5269 kg ha-1), G17 (4930 kg ha-1) and Karatay-94 (4868 kg ha-1) genotypes, the lowest grain yield obtained from G6 (2625 kg ha-1), G21 (3186 kg ha-1) and G11 (3428 kg ha-1) genotypes. According to biplot analysis that based on the visual correlation between traits, HLT, SV, GY and STR were involved in the same group, while TKW and PC were involved individually in separate groups genotypes located in corner of the polygon, G11 and G21 had highest values or desirable traits for protein content, G8 was the best for TKW while G7, Kalaycı97 and Sladoran were the best for HLT and SV. The results also showed that genotypes with appropriate combination in terms of examined traits were selected for national winter wheat breeding programs.