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对东北地区１９９２年玉米杂交种区域试验产量结果做了丰产性、稳定性和适应性分析：龙１４２、哲单１０和长单４２五点平均产量分别为１０５０９．７ｋｇ／ｈｍ２、１０６２５．８ｋｇ／ｈｍ２和１０５２３．１ｋｇ／ｈｍ２，较对照四单８分别增产１２．３％、１３．４％和１２．５％；较对照龙单９增产分别为１４．８％、１６．１％和１５．０％。且稳定性和适应性好于其它品种，可在各参试点地区大面积推广种植。吉单１８０丰产性好，产量比较稳定，适应于环境条件一般的地区种植。因此，在生产实践中，应按不同的生产水平和栽培条件，选择种植不同丰产性、稳定性的品种，以发挥其增产潜力。
The yield, stability and adaptability of the regional trial of maize hybrid in 1992 in Northeast China were analyzed. The five-point average yields of Long 142, Zhedan 10 and Changdan 42 were 10509.7kg / hm2 and 10625.8kg / hm2 and 10523.1kg / hm2, respectively, which increased by 12.3%, 13.4% and 12.5% respectively compared with that of the control. The yield of the two cultivars was 14.8%, 16.1% and 15% respectively. 0%. And the stability and adaptability better than other varieties, in the pilot area of large-scale promotion. Kyrgyzstan 180 high yield good, more stable output, adapted to the cultivation of the general environmental conditions. Therefore, in the practice of production, we should choose varieties with different high yield and stability according to different production levels and cultivation conditions in order to exert their potential of increasing yield.