| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| Pfeffer, Wilhelm |
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(v l´h lm pf´f r) (KEY) , 1845–1920, German plant physiologist. He was professor of botany successively at the universities of Bonn, Basel, Tübingen, and Leipzig (from 1887). With Julius von Sachs, he was a leader in systematizing the fundamentals of plant physiology. Pfeffer’s experiments in osmotic pressure were fundamental to modern physical chemistry. He wrote a standard work, Physiology of Plants (1881, tr. 1900–1906). |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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