冬小麦新品种陇中3号以定西市农业科学研究院自育抗条锈病、品质优异的品系D5815-5为母本，60077-6-0为父本，通过有性杂交、“多代集团混合选择技术”选育，经不同生态区域鉴定的方法选育而成的。在2010 — 2012年进行的甘肃陇中片冬小麦区域试验中，2 a 10点(次)折合平均产量3 468.8 kg/hm2，较对照品种陇中1号增产17.36%，居参试品种(系)第1位。该品种株高85～120 cm，穗长6.3～8.0 cm，千粒重43.0～47.5 g。容重807.6 g/L，蛋白质含量(干基)165.6～168.0 g/kg，湿面筋含量(14%水分基)222.0～379.0 g/kg，赖氨酸含量(干基)4.15 g/kg，沉降值(14%水分基)37.0 mL。经鉴定，苗期对条锈混合菌表现免疫至高抗，成株期对HY8、水4及混合菌表现免疫至高抗，对条中32、水14(条中33号)、水7表现免疫。抗旱性3级，抗旱指数1.094 5；抗寒性2级。适宜在甘肃定西、白银、平凉及宁夏固原等地年降水量250～400 mm，海拔2 300 m以下的干旱、半干旱、高海拔区种植。

Longzhong 3 is a newly bred winter wheat cultivar by parental combination of excellent quality of stripe rust resistance in Gansu D5815-5 as female parent， 60077-6-0 as the male parent， using“multi generation breeding， hybrid selection technology group” method in different ecological regions selected and bred the identification by Dingxi Institute of Agricultural Sciences. In 2010 — 2012， the average yield of 2 a 10(times) reaches 3 468.8 kg/hm2， which is 17.36% higher than that of the check Longzhong 1 in the winter wheat test of Longzhong region of Gansu province， ranking the varieties(lines) first. The result shows that the plant height is 85～120 cm， ear length is 6.3～8.0 cm， 1 000 grain weight is 43.0～47.5 g， bulk density is 807.6 g/L， protein content(dry base) is 165.6～168.0 g/kg， wet gluten content(4% water base) is 222.0 ～ 379.0 g/kg， lysine (dry base) is 4.15 g/kg， sedimentation value(14% water base) is 37.0 mL. By identification， it is immune and high resistance to stripe rust mixed fungus at the seedling stage， immune and high resistance to HY8， Shui 4 and mixed bacteria at the adult stage， immune to CY32、 Shui 14(CY33)， Shui 7， drought resistance level is 3， drought resistance index is 1.094 5； cold resistance grade is 2. It is suitable to be grown the arid， semi-arid， high altitude areas of annual precipitation is 250～400 mm， elevation of less than is 2 300 m of in Dingxi， Baiyin， Pingliang and Ningxia， and other places.

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国家国际科技合作专项(2015DFK31120)部分内容。