A study is made of periodic quantitative changes occurring in the level of certain tissue constituents and in the activity of some enzymes in corms of crocus during dormancy and sprouting. The period of study is arbitrarily divided into 5 stages viz.; Stage-1-dormancy and sprouting.
Stage-2 initiation and differentiation of led primordia,
Stage-3-initiation and differentiation of floral primordia,
Stage-4-elongation growth of perianth tube, and
Stage-5-bud break and floral anthesi