冬小麦新品种静麦4号为静宁县种子管理站以D5003-1为母本、RAH122为父本杂交，翌年以(D5003-1/RAH122)F1为母本，以D282为父本再次杂交，经多年选育而成。株高90～105 cm，穗长6.8～8.0 cm，穗粒数40～45粒，千粒重43.0 ～ 47.5 g，容重759.0 g/L；籽粒含粗蛋白150.6 g/kg(干基)、湿面筋272.0 g/kg (14%水分基)、赖氨酸4.57 g/kg(干基)，沉降值31.8 mL(14%水分基)。抗寒、抗旱性强，稳产性好，对条锈病表现免疫，感白粉病。 2011 — 2013年甘肃省陇中片区域试验，平均折合产量4 658.9 g/hm2，较对照品种陇中1号增产14.13%。适宜甘肃省静宁县、庄浪县、通渭县、陇西县、安定区以及宁夏西吉县、隆德县、原州区等类似生态区种植 。

Jingmai 4 is a newly winter wheat variety by parental combination of D5003-1 with RAH122 by Jingning Seed Management Station， (D5003-1/ RAH122) F1 as female， D282 as male parent after the second hybridization in the next year. The result shows that the plant height is 90~105 cm， the ear length is 6.8~8.0 cm， grain number per spike is 40 ~ 45 grain， 1 000 grain weight is 43.0~47.5 g， bulk density is 759.0 g/L； grain crude protein is 150.6 g/kg(dry basis)， wet gluten is 272.0 g/kg (14% water base)， lysine acid is 4.57 g/kg (dry basis)， sedimentation value is 31.8 mL (14% water base) value . It is resistant to cold， drought resistance， stable and good stability， immunity to stripe rust， powdery mildew. The average yield of 4 658.9 g/hm2， which is 14.13% higher than of the check in the Gansu area test conducted in the period 2008 — 2009. It is suitable to be grown in Jingning county， Zhuanglang county， Tongwei county， Longxi county， Anding district of Gansu province and Xiji county， Longde county， Yuanzhou district of Ningxia Hui Autonomous Region with similar ecological condition.

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