Fig. 1.

Pigment accumulation in leaves of purple and white ornamental cabbage lines at different stages of leaf development (S1-S3). S1, younger inner leaf; S2, mid-age leaf; S3, older leaf. Purple line (a-c): 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-f): d younger white leaf; e mid-age leaf (bicolor with white center and green margin); f older light green leaf. g purple line (SCNU-OC-41-102) and (h), white line (SCNU-OC-30-28)