Abstract: The hybrids were obtained from the cross of P42 with P39 in Phalaenopsis, and the characteristics segregation of F₁ generation was studied.The results showed that:various characteristics were between the two parents or higher or lower than their parents, which showed mid-parent heterosis or positive or negative heterosis advantage.From the frequency map analysis, the characteristic advantages of F₁ generation were in leafs, leaf color, flowers and flower color.Among them, the variation coefficient of flower color, flowers and leaf color were 29.16%, 28.74%, 28.32%, respectively, which were the focus of fine individual from F₁ generation.

Key words: Phalaenopsis, F₁ generation, characteristics segregation

摘要： 以蝴蝶兰P42为母本、P39为父本进行常规杂交,研究其F₁代性状的分离情况。结果表明:F₁代各性状介于双亲之间或高于或低于双亲,表现为中亲优势或正向超亲优势或负向优势;从频次分布图分析,F₁代的优势性状表现在叶数、叶色、花朵数和花色上,其中,花色、花朵数和叶色的变异系数最大,依次为29.16%、28.74%、28.32%,是F₁代选择优良单株的重要依据。

关键词: 蝴蝶兰, F₁代, 性状分离