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I asked this question back in the GW forum but when I looked for it I couldn't find it. I'm wondering where exactly on a given fruit tree does it 'sense' that is is being chilled enough to break cycle and push flowers for fruiting. It seems that there must be some averaging of temps the plant must receive at a given point or area on the plant to induce flowering. My question is, can this be artificially done? I originally thought wrapping a smaller tree in cold packs and changing them frequently to see if it would have an effect. In looking for equipment for my aquaponics I found chillers that chill water for fish that require lower temps. If a system could be designed where one could wrap some sort of cooling coil around a tree for a given period would this be enought to 'trick' the plant to induce flowering? If would had a small enough Lychee tree in a pot I imagine we could throw it in a walk-in cooler set at correct temp and give it the reccomended chill hours. So why not try cooling it outside? ...Sorry sometimes I have to much time on my hands and sit around and think up crazy ideas...please entertain me and tell me your thoughts on this.....