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Possible definitions for transplnation
transpiration
Loss of water from a plant, mainly through the stomata (see stoma) of leaves. Darkness, internal water deficit, and extremes of temperature tend to close stomata and decrease transpiration; illumination, ample water supply, and optimum temperature cause stomata to open and increase transpiration. It exact significance is disputed; its roles in providing the energy to transport water in the plant and in aiding in dissipating the heat of direct sunlight (by cooling through evaporation of water) have been challenged. Since stomatal openings are necessary for the exchange of gases, transpiration has been considered by some to be merely an unavoidable phenomenon that accompanies the real functions of the stomata.
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