Investigation into total phenolics and their spectrum in the buds and corms of
saffron Crocus and a study of polyphenol oxidase changes in the apical bud during
different stages of growth and development showed that changes in the growth and
development of the apical bud may be related to changes in the composition of
phenolics in the corm. A sudden intense change in content and kind of phenolic
components probably acts as a switch.This change shifts the balance between
endogenous growth promoters and growth inhibitors so that bud growth is resumed
and certain developmental changes in the bud are triggered