为了给生产上提供高产稳产、抗旱抗病、品质优良的糜子新品种。以糜子自育品种陇糜7号为母本、从宁夏农业科学院固原分院引进的品种宁糜15号为父本，采用有性杂交后经多年系统选育育成的高产、抗逆的糜子新品种陇糜21号。2021年在甘肃省灵台县、会宁县、静宁县、华池县、陇西县、合水县等6个试点进行的生产试验中，陇糜1号平均折合产量3 619.00 kg/hm2，比对照品种陇糜14号增产11.47%。在2021 — 2022年国家糜子品种糯性组区域试验中，2 a平均折合产量3 391.35 kg/hm2，较对照品种陇糜14号增产10.91%。该品种生育期104~113 d，株高148.3~167.7 cm，主茎节数6.2~7.7节。主穗长29.2~34.1 cm，侧穗。花序绿色，籽粒黄色，卵圆形，米色黄色。穗粒重7.0~8.3 g，千粒重8.0~9.3 g。适宜在甘肃省庆阳、平凉、白银、定西，陕西省榆林、延安，内蒙古达拉特旗和宁夏固原等地及相似生态地区种植。

To provide new broomcorn millet varieties with high and stable yield, drought resistance, disease resistance, and excellent quality for production, Longmi 21, a new high-yielding and resistant variety of broomcorn millet using cross between female parent Longmi 7 and male parent Ningmi 15, was bred by the Crop Research Institute of Gansu Academy of Agricultural Sciences using sexual hybridization through many years of systematic selection. Production experiments were carried out in Counties such as Lingtai, Huining, Jingning, Huachi, Longxi and Heshui in 2021, the average yield of Longmi was 3 619.00 kg/ha, which was 11.47% higher than that of control variety Longmi 14. It participated in the national regional experiment of the waxy group of millet varieties in 2021 and 2022, an average yield of 3 391.35 kg/ha in 2 a was obtained which was 10.91% higher than that of control variety Longmi 14. The growth period is 104 to 113 days, the plant height is 148.3 to 167.7 cm and the number of main stem nodes is 6.2 to 7.7. The mainspike length is 29.2 to 34.1 cm with lateral shape. It has green inflorescence, yellow and ovoid seed shell and yellow rice. The spike grain weight is 7.0 to 8.3 g and the 1000-grain weight is 8.0 to 9.3 g. It is suitable for cultivation in Qingyang, Pingliang, Baiyin and Dingxi in Gansu, Yulin and Yan'an in Shaanxi, Dalad Banner in Inner Mongolia, Guyuan in Ningxia and and other areas with similar ecological conditions.

S512.9

国家现代农业产业技术体系项目(CARS-06-14.5-A8)；甘肃省农业科学院现代生物育种项目(2021GAAS02)。