冬小麦新品种天选52号是天水市农业科学研究所小麦抗锈育种中心以92R-137-4-4-2-1为母本，D475为父本进行有性杂交，采用系谱法经多年选育而成。在2010 — 2012年甘肃省陇南片区域试验中，2 a折合产量 6 083.25 kg/hm2，比对照增产6.35%。该品种株高98.5 cm，穗长平均6.85 cm，千粒重48.41 g，容重779.20 g/L。籽粒粗蛋白含量141.3 g/kg，湿面筋含量241.8 g/kg，沉降值40.3 mL。经接种鉴定，苗期对混合菌表现免疫；成株期对条中32号、条中33号、贵22-9、贵22-14、水4、水5表现免疫，对混合菌为2/10/10。适应于天水市山区旱地种植。

Tianxuan 52， a winter winter wheat variety newly bred systematically by crossing with the parental combination of 92R-137-4-4-2-1 / D475. The average yield Tianxuan 52 is 6 083.25 kg/hm2 and 6.35% higher than of the check in winter wheat regional test which is conducted during the period 2010 — 2012 in the Longnan district. In addition， the plant heigth is 98.5 cm， ear length is 6.85 cm， thousand grain weight is 48.41 g， bulk weight is 779.20 g/L， seed crude protein is 141.3 g/kg， wet gluten is 241.8 g/kg and with settlement of value of 40.3 mL. By inoculating indentification， the result showes that Tianxuan 52 is immune completely to mixture race at the seeding stage and immune completely to CY32， CY33， Gui 22-9， Gui 22-14， Shui 4， Shui 5 and mixture race is 2/10/10 at the adult stage. It is suitable to plant in mountainous area of Tianshui city.

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甘肃省农业科技创新项目“优质高产多抗冬小麦新品种选育”；天水市科技支撑计划项目“农家小麦品种资源利用研究与新品种选育”。