测定了2007—2010年来自9个产地59个品种共97份燕麦样品的油脂含量和脂肪酸相对含量.以此为基础,分析了产地、年份间的差异,并对燕麦样品进行了聚类分析.结果显示:燕麦中油脂平均含量为6.42％,受年份影响显著,而产地影响不显著；燕麦油脂脂肪酸主要成分油酸、亚油酸比例接近1∶1,约占总脂肪酸的80％,脂肪酸组成受产地、年份影响均显著；所收集燕麦样品根据所测定油脂指标可聚为3类,但类间差异主要体现在油酸含量上.%Ninty - seven oat samples of 59 varieties from 9 locations harvested from 2007-2010 were collected. Oil content and fatty acids composition of the samples were determined, and the differences a-mong years and locations were analyzed. Meanwhile cluster analysis was employed in oat samples classification. The results indicated that the average content of oil in oats was 6. 42% ; locations had no significant effect on oil content, but years had significant effect. Oleic acid and linoleic acid took up 80% of fatty acids in oat oil, and their ratio was close to 1:1. Both locations and years had significant effects on fatty acids composition. Oat samples were classified into 3 categories, the differences among categories were mainly reflected in oleic acid.
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