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Radiation in the Plant Environment and Photosynthesis 1
Author(s) -
Waggoner Paul E.,
Moss D. N.,
Hesketh J. D.
Publication year - 1963
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1963.00021962005500010014x
Subject(s) - photosynthesis , sunlight , photosynthetically active radiation , atmospheric sciences , turbulence , light intensity , diffusion , botany , environmental science , chemistry , agronomy , physics , biology , meteorology , optics , thermodynamics
Synopsis Chemical theory predicts that an increase in light intensity will increase photosynthesis whenever the quantity of CO 2 and turbulence are of the magnitude encountered in the field. Diffusion theory predicts the equivalent effect of increasing turbulence of CO 2 . In fact photosynthesis of cane increased between 1.2 and 1.6 cal. cm. −2 min. −1 of incandescent light, even at 200 ppm CO 2 in calm air. On the other hand, photosynthesis of tobacco and dogwood increased little at sunlight intensities above 0.4 cal. cm. −2 min. −1 .