LOCALIZATION AND QUANTITY OF TANNINS AND PROTEINS IN THE TESTA OF IPOMOEA-PURPUREA (L) ROTH RELATIVE TO WATER PERMEABILITY

Localization and amount of condensed (not found) and hydrolyzable tannins and proteins in the testa of L purpurea were related to permeability to water in the testa. During dehydration of the seed, hydrolyzable tannins and prolamins decreased, albumins and globulins also decrease