Some factors affecting anthocyanin synthesis in cress seedlings

and Mapson, Cruickshank & Chen (1949), in their work on the effects of various sugars and salts upon the accumu- lation of ascorbic acid in cress seedlings, had noticed that the pinkness of their metaphosphoric acid extracts varied with the various treatments and that, in general, those seedlings containing most ascorbic acid also contained most anthocyanin. The present work describes the quantitative effects on antho- cyanin production of feeding seedlings with various sugars and of certain other experimental treatments.