在河西地区对引进8个食用型向日葵品种开展比较试验。采用系统聚类分析和灰色关联度分析对食用向日葵品种物候期、主要经济性状、籽粒性状和产量等指标进行分析。结果表明，向日葵产量除与产量性状指标有关外，还应注意籽实的宽度。A9产量最高，为4 972.9 kg/hm2；K14016产量位居第2，为4 941.9 kg/hm2。二者抗病性好、嗑食品质高，适于推广。

The edible sunflower cultivars comparison experiment was conducted to analyze the differences of the 8 edible sunflower cultivars in Hexi region. The system clustering analysis and grey correlation analysis were conducted for indexes of the phenological phase， the main economic characters， seed traits and yield. The results indicate that the yield is related to the yield traits， but the width of seed is also important. The output of A9 is the highest(4 972.9 kg/hm2)， the second is K14016(4 941.9 kg/hm2) . They both have good disease resistance and high food qualities， and are suitable for extension.

S565.5

甘肃省农业科学院院地科技合作项目“食葵、魔芋新品系引选及栽培技术研究”(2014GAAS11)。