对71个万寿菊资源的主要观赏性状进行了系统聚类分析。

Based on important ornamental characters of 71 varieties or lines of Toyetes, cluster analysis method was used to investigare their heredity relationship.

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研究取得了如下主要结果：1。从荷兰引种的40个郁金香新品种在杨凌地区可以正常地生长发育，表现出了较好的观赏性状，适应本地的气候条件。

The main results were as follows: 1. 40 new tulip varieties introduced from Holland grew normally in Yangling, displayed a good ornamental character and adaptability to the local climatic conditions.

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