1. Reserve deposition 2. Increased respiration (to provide energy for reserve synthesis) 3. Hormones increase in the turn of: cytokinin, gibberellin and auxin, ABA I CeLL EXPANSION I MATURATION DRYING 400 100 180 米 75 染 H200 140滥 100 20 0 15/6 29/6 13/7 2777 10/8 24/8 CELLDIVIsIoI 粗LLEx Cytokinin(o)、GA(A)、IAA(囗) resh weightCytokinin（o）、GA(Δ)、IAA(□) ---- fresh weight 1.Reserve deposition 2. Increased respiration (to provide energy for reserve synthesis) 3. Hormones increase in the turn of: cytokinin, gibberellin and auxin, ABA