为筛选出适合临夏种植的彩色油菜新品种，丰富当地油菜花色，对引进的4个观赏型油菜品种进行了比较试验。结果表明，观赏型油菜品种TH折合产量较高，为2 656.25 kg/hm2，较对照品种青杂3号减产1.62%，减产不明显；但其花期长达40 d，平均单株花朵数多达298.4朵，且花序紧凑、花色纯度高(88%)、单株盛花量大，经济性状良好。综合考虑认为，观赏型油菜品种TH适合临夏州及类似生态区推广种植。

The objective was to screen out new varieties of rape suitable for plantingand to enrich the color of local rapeseedin Linxia Hui Autonomous Prefecture. Comparative tests were carried out on four imported ornamental rapeseed varieties. The results showed that the yield of ornamental rapeseed cultivar TH was 2 656.25 kg/hm2， which was 1.62% lower than that of the control cultivar Qingza 3， the effect of production reduction was not obvious. It has a flowering period of 40 days， with an average number of 298.4 flowers per plant， compact inflorescence， high color purity(88%)， large amount of flowers per plant， and good economic character. Comprehensive evaluation suggested that the ornamental rapeseed cultivar TH is suitable for planting in Linxiaprefecture and similar ecological areas.

S565.4