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

根据同工酶图谱、交叉亲缘关系和形态特征推测了雨百合之间的亲缘关系。本试验所用材料为泽兰属5种8个品种、哈士兰属3种5个品种、红景天属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同工酶图谱进行聚类分析的结果表明，‘Luciae’与哈巴兰花相近，而红景天与泽兰和哈布朗斯较远。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植株大多为母性植株，但从一些杂交组合中获得了真正的杂种。因此，为了获得杂交种子，必须进行大量的杂交。3)泽兰和哈伯纳斯的开花方向差异很大。4)利用Hunter色差仪对亲本和F_1代植株的花色进行了观察。F_1代植株间花色差异较大。这些材料可用于雨百合花色的改良。

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.