Open AccessFACTORS IN ELONGATION AND EXPANSION UNDER REDUCED LIGHT INTENSITY
Author(s) -
Frederic E. Clements,
Frances L. Long
Publication year - 1934
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.9.4.767
Subject(s) - adaptation (eye) , intensity (physics) , function (biology) , elongation , light intensity , environmental science , control theory (sociology) , control (management) , computer science , materials science , physics , optics , biology , artificial intelligence , composite material , microbiology and biotechnology , ultimate tensile strength
In seeking to determine the role of factor and function in adaptation in nature, the first step has been to deal under control with one factor, and the function directly concerned, by equalizing the others. As an outcome of the results thus secured, it has been possible to modify the method to take into account two variables, such as light and water, in the hope of evaluating their respective roles. This is particularly desirable in the case of adaptation to shade, in which reduced light intensity has generally been regarded as the controlling agent, with little or no consideration of water relations. Since water serves both as a raw material and as a mechanical
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