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陕单9号系陕西省农科院粮作所1978年用自交系武109作母本,自交系莫17(Mo17)作父本杂交而成的单交种。1978—1980年参加全省春、夏播和全国北方夏播玉米区域试验,位次均居第二名。该杂交种具有产量高,品质较好,适应性强等特点。1981年经陕西省农作物品种审定委员会审定通过。特征特性株型整齐、健壮,株高250—280厘米,穗位高100—120厘米,果穗长筒形,穗长20—25厘米,每穗12—14行,每行38—42粒。花丝、穗轴紫红色,结实饱满,平均秃顶率3.7%。籽粒黄色、
Shandan 9 Department of Shaanxi Academy of Agricultural Sciences Institute of grain in 1978 with 109 self-lines as the female parent, inbred lines Mo 17 (17) as a single parent cross hybrids. From 1978 to 1980, he took part in the spring and summer sowing of the province and the regional trial of summer sowing corn in the northern part of the country, ranking the second place. The hybrid has the characteristics of high yield, good quality and strong adaptability. In 1981 by the Shaanxi Provincial Crop Variety Approval Committee approved. Characteristics of the plant neat, robust, plant height 250-280 cm, ear height 100-120 cm, ear long cylindrical, spike length 20-25 cm, 12-14 lines per panicle, each line 38-42 tablets. Filigree, cobby purple, strong and full, the average bald rate of 3.7%. Grain yellow,