Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 March 1964
Published in Agron J 56:143-145 (1964)
© 1964 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Effect of Root Zone Temperature at Various Stages of the Growing Period on the Growth of Corn1

H. A. Knoll, D. J. Lathwell and N. C. Brady2

Synopsis: Root zone temperature of 15° C. for 15 days adversely affected dry matter production compared to a constant temperature of 20° C., while root zone temperature of 25° C. for 12 days stimulated dry matter production compared to 20° C. It was not possible, however, to show that there was a specific period at which root zone temperature was most critical in the early growth of corn.

1 Contribution from the Department of Agronomy, New York State College of Agriculture, Cornell University, Ithaca, N. Y., as Agronomy Paper No. 621. This work was supported in part by the Division of Agricultural Relations, Tennessee Valley Authority, and was part of the Northeast Regional Climatology Project, N.E. 35.

2 Graduate assistant (now Agronomist, FMC International, New York, New York); Professor of Soil Science; and Head, Department of Agronomy (now Director of Science and Education, USDA); respectively.

Received for publication June 14, 1963.




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The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1964 by the American Society of Agronomy.