Grain yield of 15 durum wheat (Triticum durum Desf.) genotypes consisting of 13 cultivars and 2 advanced lines, tested in a randomized complete block design with four replications across 8 environments of Central Anatolian Region of Turkey was analyzed using nine parametric stability measures. The objectives were to assess genotype--environment interactions (GEI), determine stable genotypes, and compare mean grain yield with the parametric stability parameters. To quantify yield stability, nine stability statistics were calculated (, α i and λ i ). Yilmaz-98, Cakmak-79, Kiziltan-91, Selcuklu-97 and C-1252 were more stable cultivars, which had 9, 8, 6, 6, 6 out of all 9 stability statistics used, respectively. Especially, among these cultivars, Yilmaz-98 and Cakmak-79 were the most stable cultivars. Furthermore, three-dimensional plots of mean response versus each stability statistic were shown to visually evaluate the yield potential and stability estimates of the genotypes. Genotype mean yield ( -x) was significantly positively correlated to the regression coefficient (b i ), environmental variance and genotype to the environmental effects (α i ), indicating that high grain yielding genotypes had larger values b i , S 2 i , andCV i , α i and b i , were significantly correlated, indicating that they measured similar aspects of stability.

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Evaluation of Yield and Quality Traits of Wheat Cultivars A R T I C L E I N F O A B S T R A C TJoules alveograph P/L 0.38 to 1.29, micsograph development time 1.44-4.95 min., mixograph peak height, 42.46-60.67%, mixograph right peak slope 10.13-45.52%, mixograph total area 239.12-322.28% Tq*dak, was found. The experiment has been found significant correlations between traits.