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In spite of the extensive work on the effect of temperature on plants in general, there are very few reviews on this subject as a whole, the most extensive being that of Belehradek (7). The ecological effects of temperature are discussed by Daubenmire (35), Whyte (153), and Walter (139). Temperature, along with light, humidity, etc., belongs to the important factors in the environment of plants. It is also an insufficiently appreciated tool for research, for in many cases the processes of growth can be differentiated by their temperature responses. A good example of this fact is the photosynthetic process, in which temperature affects a chemical process at high light intensities and a diffusion process at low light intensities when the photochemical process becomes limiting.
F. W. Went (Mon,) studied this question.