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Total anthocyanin (a) and total chlorophyll (b) contents in purple and white ornamental cabbage at different stages of leaf development. Q, total anthocyanin content. Purple line: a younger purple leaf; b mid-age leaf (bicolor with purple at proximal end and green at distal end of the leaf); c older green leaf. White line: d younger white leaf; e mid-age leaf (bicolor with white center and green margin); f older light green leaf
