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53自交系是利用9个优良自交系组成基础群体,经两次开放传粉后自交选育而成。试验示范结果表明,53高抗大小斑病和青枯病,抗玉米丝黑穗病,中抗玉米矮花叶病及粗缩病,配合力高,自身产量高,生育期适中,受到省内外育种家关注。据不完全统计,在河北、河南、山西和云南等省以53及其改良系作亲本已育成11个通过审定的杂交种。其中河北省的冀丰58及河南省的豫玉27在省内外累计推广面积达900万hm2。
53 inbred lines were made up of 9 elite inbred lines and were self-pollinated after being twice pollinated. The experimental demonstration results show that 53 high resistance to spot and bacterial wilt, corn head smut, resistance to maize dwarf mosaic disease and curtilage, high combining ability, high yield, moderate growth period, both inside and outside the province Breeders concerned. According to incomplete statistics, 11 approved hybrids have been bred by 53 and their improved parents in Hebei, Henan, Shanxi and Yunnan provinces. Among them, Ji Feng 58 in Hebei Province and Yu Yu 27 in Henan Province accumulatively popularized 9 million hm2 inside and outside the province.