'Le Rouge et le Noir': A decline in flavone formation correlates with the rare color of black dahlia (Dahlia variabilis hort.) flowers

Table 1 Contents (μmol/g fresh weight) of anthocyanins, flavones and flavonols in different cultivars (nd: not determined)

Cultivar	Colour	Anthocyanin content	Cy %	Flavone content	Flavonol content
White Alva	white	-	-	30	8
Rubens	yellow	-	-	25	6
Alva’s Supreme	yellow	-	-	96	9
Feuerschein	bright red	2	15	68	12
Cheerio	red	1	30	8	1
Black Barbara	black	21	9	122	17
Arabian Night	black	19	59	5	23
Auroras Kiss	black	15	65	9	27
Black Jack	black	13	78	8	30
Chat Noir	black	8	72	3	14
Charles de Gaulle	black	10	57	3	6
Karma Choc	black	22	75	2	36
Kenora Macop B	black	10	65	nd	nd
Magic Night	black	18	80	22	34
Meteor	black	13	53	2	15
Nathal	black	8	78	6	16
Negerkopf	black	8	47	8	32
Stefanie Hertel	black	16	53	nd	nd
Tisa	black	33	58	1	31

ISSN: 1471-2229