Abstract
The variation of flavin contents in leaves and stems of broad beans has been studied in the course of growth over a period of 90 days.
The results obtained are as follows:
1) The slight variations of content of flavin in various portions of the stem have been found at each stage of growth.
2) The flavin content of leaves gave maximum values at the growth stage of flowering and at the early stage of fruiting, regardless of the portion of the stem to which the leaves were attached. 3) The flavin content in leaves were more in the upper and middle position leaves, but less in the buds and the lower-positionleaves.
