本方法用美国引进种质 1 6与美国引进种质 1 8杂交 ,选株自交 3代后 ,经抗病鉴定和配合力测定 ,再经 4代自交纯合 ,育成了高产多抗、株型紧凑的优异自交系 698 3;然后以自交系 698 3为母本 ,自交系 2 0 0Ｂ为父本 ,组配成强优势杂交种成单 2 3。本玉米杂交种具有产量高、适应性 The method of the present invention using the United States introduced germplasm 16 and the introduction of the United States 18 hybridization, selection of plants self-generation after three generations, the disease resistance identification and combining ability determination, and then by four generations of selfing, bred into high yield polyclonal, Inbred line 698 3 was the most compact inbred line. Then, the inbred line 698 3 was used as the female parent and the inbred line 200B as the male parent. The corn hybrids have high yield and adaptability