中文摘要：

对北美驼绒藜的4个世代12个主要性状遗传变异特性初步分析结果表明：在世代内12个主要性状变异都不显著，在世代间除枝条节数和着生雄花节数外，其它10个性状变异程度都达到了显著或极显著水平，表明北美驼绒藜各性状主要变异来自世代间；10个性状表型变异系数和遗传变异系数总体趋势基本一致，但程度上存在差异，说明这些性状遗传变异潜力较大；株高、叶腋雌花数、叶宽、再生小枝数性状遗传力较高（72—62），其变异主要是遗传因素决定，而叶长、株幅性状遗传力较低（16-14），其变异主要是环境因素决定。

英文摘要：

The initial analysis of 12 main characteristics of genetic variation of Winterfat in four generations showed that 12 main characteristics variation were not significant within the generations, but the number of branches and the number of male flowers,other variations of the 10 traits have reached a significant or quite significant level, showing that the main variations of all characteristics were among generations. The genetic variation coefficient and phenotype variation coefficient had the same overall trend, but there were differences in degree, displaying the potential for genet- ic variations in these traits is great; the trait herhabilities in plant height, number of females flowers in axillary,leaves width and renewable branches were high a bit（72-62）,and the variations were mainly decided by genetic elements, however, the herhabilities of leaves length and plant spread were lower, and its variation was mainly decided by environment factors.