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Factors affecting flower colour

, : Factors affecting flower colour. Acta Horticulturae (41): 57-68

Anthocyanins and other flavonoid components were isolated from a range of flowers including bulbous iris, azalea, rose and pelargonium. Spectral absorption curves of entire fresh flower petals or intact epidermal cells were obtained using a microspectrophorometer. Methylation and hydroxylation were the main factors influencing the colour of anthocyanins, methylation reducing blueness and hydroxylation enhancing it.

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