from each of six plants of the cv Christmas Eve were harvested into liquid nitrogen. The sam-ples were freeze-dried using a freeze dryer machine (Heto HoltenA/S, Gydevang 17-19, DK-3450 Allerød, Denmark). For each light treatment six samples, each consisting of three shoot tips from oneplant, were used for hormone analysis. Of these, three samples wereused for the analysis of auxin, abscisic acid (ABA), cytokinin (CK)and their metabolites, and the three other samples were used forgibberellin (GA) analysis.