Studies on the color tones and the anthocyanin pigments in red chrysanthemums

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Abstract
The writers studied on the color tones and anthocyanins contained in red chrysanthemum petals. Results obtained are summarized as follows. 1. It is easy and yet exact to measure the color tones of chrysanthemum petals by the color difference meter. Besides, it is possible to distinguish even the slight color intervals among each varieties of red chrysanthemums. 2. A distinct correlation was observed between the amount of anthocyanin contained in the petals and the L, a and b values which were measured by the color difference meter. Especially, L was found to be closely correlated with the amount of anthocyanin pigments.. 3. In accordance with the decreasing amounts of anthocyanin, the color tones of petals changed from orange to red, red to purple, and the values of color saturation lowered. 4. At least three kinds of anthocyanins were found in each variety and it was presumed that the kinds of anthocyanins contained in 18 varieties under the present experiment might be the same.

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