为了筛选适宜在高海拔旱作区种植的优质高产玉米品种，对引进8个玉米新品种进行了品种比较试验。结果表明，鲁星619折合产量最高，为10 838.07 kg/hm2，较对照品种胜玉902增产52.80%；五谷703折合产量为10 392.99 kg/hm2，较对照品种胜玉902增产46.53%。这2个品种在当地均能正常成熟，经济性状表现良好，适宜在旱作区同类生态区域推广种植。TW72和金穗306生育期适中，也有较好的丰产性，较对照品种胜玉902分别增产30.91%、24.97%，综合性状表现较好，可作为搭配品种在高海拔旱作区种植。

Eight new maize varieties were introduced in upland area of high altitude for comparative experiment. The results showed that LuXing 619 had the highest yield of 10 838.07 kg/hm2， which was increased by 52.80% compared with ShengYu 902. The yield of WuGu 703 was 10 392.99 kg/hm2， increased by 46.53% in comparation with ShengYu 902. These two varieties can mature normally in the local area and show good economic characters， which is suitable for spreading planting in the same ecological area of dry land. Compared with ShengYu 902， TW72 and JinSui 306 had a moderate growth period and a good yield. Compared with ShengYu 902， TW72 and JinSui 306 showed a 30.91% and 24.97% increase respectively. They showed a good comprehensive character and could be used as a combination variety for demonstration planting in high altitude dry land.

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