Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 12:77-79 (1972)
© 1972 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Light Saturation, Photosynthesis Rate, RuDP Carboxylase Activity, and Specific Leaf Weight in Soybeans Grown Under Different Light Intensities1

G. Bowes, W. L. Ogren and R. H. Hageman2

Higher light intensities during growth of ‘Wayne’ soybeans [Glycine max (L.) Merrill] resulted in increases in photosynthesis rate, light saturation intensity, RuDP carboxylase activity, and specific leaf weight. This light adaptation may explain the large reported differences in maximum photosynthesis rate and light saturation intensity for the soybean.

Key Words: Light adaptation


1 Cooperative investigations of the Plant Science Research Division, Agricultural Research Service, US Department of Agriculture, and the Illinois Agricultural Experiement Station, Urbana, Ill. Publication No. 679 of the US Regional Soybean Laboratory, Urbana, Ill. This study was supported in part by the Agricultural Research Service, US Department of Agriculture, CSRS grant nos. 716-15-10 and 016-15-18.

2 Visiting Research Associate, Department of Agronomy, University of Illinois, Urbana, Ill., Plant Physiologist, Plant Science Research Division, Agricultural Research Service, US Department of Agriculture, Urbana, Ill., and Professor of Plant Physiology, Department of Agronomy, University of Illinois, Urbana Ill. 61801.

Received for publication July 15, 1971.





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