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Compound Interest explains the chemicals that give leaves their color both when they are green and when they change color in autumn. Further explanations are available in their post.
Leaves are green because of chlorophyll, yellow because of a combination of carotenoids and flavonoids, red because of carotenoids combined with anthocyanins, and orange when only carotenoids are present.
Great tips regrading anthocyanins. You provided the best information which helps us a lot. Thanks for sharing the wonderful information.
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