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该品种为辽宁省农科院土肥所采用辐射诱变、集团选择方法选育而成,经省作物品种审定委员会1983年审定命名。全国种植面积现达20—30万亩。特征特性茎圆、中空,密植时直立,稀植时斜曲向上。羽状复叶,总状花序,每穗有小花61—90朵,花冠蓝紫色或紫红色。小花蝶形,闭花散粉。荚果三棱状,花圆筒形或长椭圆形,二室。种子棕褐色,肾形,千粒重1.3—1.5克。主根明显,根系深,结有棒状或珊瑚状根瘤。
The variety for the Liaoning Provincial Academy of Agricultural Sciences, soil fertility by radiation mutagenesis, breeding methods selected by the Group, approved by the Provincial Crop Variety Approval Committee in 1983 named. The planting area is now 20-30 million mu. Features stem thick, hollow, close planting erect, sparsely planted oblique upward. Pinnate, racemes, each flower 61-90 flowers, blue-purple or purple corolla. Butterfly flowers, flowers scattered powder. Culms triangular, flowers cylindric or oblong, two-compartment. Seeds tan, kidney-shaped, grain weight 1.3-1.5 grams. The main root is obvious, deep roots, knot stick or coral-like root nodules.