冬小麦新品种天选57号以RAH122/94与天882杂交的F1为母本、绵89-41与89-181的F1为父本，采用系谱法杂交选育而成，原代号天9931。在2014 — 2015 年度陇南片山区组区域试验中，平均产量67 102.65 kg/hm2，较对照品种兰天19号增产9.2%。经分小种接种鉴定，该品种苗期对条锈混合菌表现中抗，成株期对条中32号、条中33号、条中34号、贵农22-14、贵农其它及混合菌表现免疫。主要适宜于陇南和天水的川水地、浅山区种植。

Tianxuan 57 is a newly bred winter wheat cultivar by parental combination of (RAH122/94/Tian882) F1 with (Mian89-41/89-181) F1 . The average yield of Tianxuan 57 reaches 67 102.65 kg/hm2， which is 9.2% higher than that of the check Lantian 19 in winter wheat production testconducted in the period 2014 — 2015 of Longnan district. By inoculating identification of stripe rust in Institute of Plant Protection of Gansu Academy of Agricultural Science， the result showes that Tianxuan 57 is immune completely to mixture race at the seeding stage and immune completely to CY32， CY33， CY34， Gui 22-14， mixture race at the adult stage. It is suitable to plant in mountainous area of Tianshui city.

S512.1

甘肃省科技支撑计划项目(1504NKCE115)。