庆84—2玉米新杂交种系大庆市庆南种子开发公司以外引自交系3158为母本,外引自交系81—27为父母组配的单交种。1992年2月经黑龙江省品种审定委员会审定通过,定为1992年重点推广新品种。特征特性该品种生育期110天左右,为中早熟品种,需活动积温2300～2400℃。幼苗发育快,叶色浓绿,叶片平值上伸,株高235厘米 Qing 84-2 new hybrid maize lines were from Daqing City Gyeongnam Seed Development Company cited from 3158 as the female parent, the introduction of inbred lines 81-27 for the parent group with a single cross. 1992 February by the Heilongjiang Province, the Commission examined and approved the species identified as 1992 focus on the promotion of new varieties. Characteristics of the variety of growth period of about 110 days, as early maturing varieties, the need to active accumulated temperature 2300 ~ 2400 ℃. Rapid seedling development, dark green leaves, leaves flat extension, height 235 cm