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1育种目标选育高产、抗病、优质、早熟型玉米品种作为玉米育种主攻目标。2选育过程1998年夏在河南滑县用78599早×478杂交,连续6代自交育成母本HF12;1997年在滑县夏播育种材料中心选择根系发达、抗粒腐病的昌7-2变异株,连续择优自交8代定向选育而成父本HFC72。2002年参加本公司玉米组合鉴定,在2000份组合中表现突出,代号为0521。
Breeding objectives Breeding high yield, disease resistance, high quality, early maturing corn breeds as the main target of maize breeding. 2 breeding process in the summer of 1998 in Hu County, Henan Province, with 78599 early × 478 cross, 6 generations of self-fertility for the mother of the female HF12; 1997 in Huaxian summer sown breeding materials center developed root system resistant to grain rot Chang 7- 2 mutants, continuous selection of selfing 8 generations of directional breeding and the father of HFC72 .2002 joined corn firm identification, in 2000 the combination of outstanding performance, code-named 0521.