花色発現の機構に関する研究 : II.ダリアに於ける花色変化の機構について

抄録

These experiments have been carried out to clarify the mechanism of the variation of flower colour in Dahlia, applying qualitative and quantitative analysis of their pigments with paper chlomatography. The results obtained after examination of 101 strains are summerized as foilows : 1). Two anthocyanins and two flavonoids are detected and each of them is decided as pelargonin, cyanin, apiin and butein respectively. Pale red strains generally contain pelargonin, but dark red strains and blue strains have pelargonin and complex-salt of cyanin. Yellow pigment in Dahlia are not apigenin or butein, and it is probablly due to carotene, so that the effect of flavon()ids to flower colour may be thought to be neglected in this case. In general, increasiTrg the content of pigment makes flower colour darker . 2). All the strains are divided in nine ciasses from theirc onstitution of pigments and four genes P, C, A and B, each corresponds to the presence of pelargonin, cyanin, apiinf and butein, are considered genetically. Name of classes, constitution of their pigments, genotype and:i number of strains belong to each class are given in the following table.