Vernalization and de-vernalization Cold Cold temperature Precursor temperature Intermediate Final product product 25~40℃or impropriate daylength treat Degradation It is the shoot apex that receives the signal of De-vernalization cold temperature Vernalization can be removed by other treatments, this phenomena is called de-vernalization.It is the shoot apex that receives the signal of cold temperature. De-vernalization 25~40℃ or impropriate daylength Vernalization can be removed by other treatments, this phenomena is called de-vernalization. Intermediate product Precursor Final product Cold temperature Degradation Vernalization and de-vernalization Cold temperature