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¹ Tarla Bitkileri Merkez Araştıma Enstüsü, Ankara - Genetic advance was investigated using cultivars released for Central Anatolian Plateau and Transitional Zones during 1932-91 in Turkey. Average yield of cultivars was analyzed in a 2-way,no interaction model to see differences in cultivars and obtain genetic conponents for each cultivar. Computed genetic variances for each cultivar were utilized to compute narrow sense heritability and, later, genetic advance induced by early cultivar. Mean genetic advance in three succeding periods i.e. 1932-51, 1952-71, and 1972-91 was calculated averaging genetic advances of cultivars. A total of 74 % genetic advance during 1932-91 has revealed a higher impact of wheat breeding on Turkey wheat production. Keywords : Genetic advance; bread wheat; variety; no interaction model