What happens when you take a deciduous tree and place it in a climate controlled greenhouse?
It harms the trees, seasonal chemistry in the plant is reduced and weakened they have tried growing apples and decidious fruit trees at the equator and they have to treat them chemically to help them stay stronger:
http://www.actahort.org/books/49/49_14.htm
the tropics have seasonal queues, and in a greenhouse with no temp and light change, the plant would be very disoriented, the critical glucose and leaf cycling would be very degraded, because plants have most of their queues from temps, water and sun.
http://www.madsci.org/posts/archives/2001-02/981072513.Bt.r.html
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