Relationship among rain lilies (zephyranthes, Habranthus and Rhodophiala) presumed from the electrophoretic patterns of isozymes, cross affinity relationship and morphorogical characteristics.

从同工酶的电泳图谱、交叉亲和关系和形态特征推测雨百合（Zephyranthes、Habranthus和Rhodophiala）之间的亲缘关系。实验材料为Zephyranthes 5种8个品种，Habranthus 3种5个品种，Rhodophiala 1种。结果如下：1)根据酯酶、过氧化物酶和酸性磷酸酶同工酶的电泳图谱聚类分析的树状图结果，‘Luciae’与Habranthus接近，Rhodophiala与Zephyranthes和Habranthus相距较远。2)利用胚珠和子房培养技术进行了品种间、种间和属间杂交，虽然F1植株大部分为母株，但也有一些杂交组合获得了真正的杂种。因此，为了获得杂交种子，必须进行大量的杂交。(3)西风属与Habranthus开花方向差异较大。zephrans花面朝上，habranthaceae花面朝上。4)用Hunter’s色差仪对亲本和F_1植株的花色进行了研究。F_1植株的花色差异较大。这些材料可用于改善雨百合的花色。

The relationship among rain lilies (Zephyranthes, Habranthus and Rhodophiala) presumed from the electrophoretic patterns of isozymes, cross affinity relationship and morphorogical characteristics. The materials used in this experiment were 5 species and 8 cultivars of Zephyranthes, 3 species and 5 cultivars of Habranthus, and 1 species of Rhodophiala. The results are as follows.1) According to the result of dendrogram on cluster analysis by the electrophoretic patterns of esterase, peroxidase and acid phoshpotase isozymes, Z.'Luciae' is close to Habranthus, and Rhodophiala is remote from Zephyranthes and Habranthus.2) Intervarietal, interspecific and intergeneric crossing was carried out using the ovule and ovary culture technique, Though most of F1 plants were matroclinal plants, true hybrids obtained from some cross combinations. Therefore, a great number of crossing should be made in order to obtain hybrid seeds.3) The direction of bloomed flowers differ greately between Zephyranthes and Habranthus. The flower face upwardly in Zephranthes, but face of obliquely in Habranthus.4) In parents and F_1 plants, flower color was investigated with Hunter's color difference meter. A wide variation of flower color was observed among F_1 plants. These materials could be used for the improvement of flower color in the rain lily.