一、品种来源及选育经过周豆!“号是周口市农科所用玉米总#$%为供体，导入受体豫豆”号，经多年连续选择和南繁加代育成。二、特征特性周豆!“号秆硬且有韧性，直立，有限结荚习性，株高’()*+,-，单株有效分枝!).个，株型收敛。叶色深绿，椭圆形，中等大小，叶片上举，叶柄与主茎 First, the variety of sources and breeding After weeks beans! ”No. Zhoukou City, agriculture is used by corn total # $% for the donor, into the recipient Yudou“ No., after years of continuous selection and breeding complex. Second, the characteristics of Zhou beans! ”No. Hard and tough straw, erect, limited pod habit, plant height ’() * +, -, effective branch of the plant! Green, oval, medium-sized, leaves on the move, petiole and main stem