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Published online 1 December 1958
Published in Agron J 50:724-729 (1958)
© 1958 American Society of Agronomy
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Photoperiodism1

Sterling B. Hendricks2

Synopsis: Forty years ago Garner and Allard discovered the control of flowering by "the relative length of day and night." Etiolation, seed germination, and many other aspects of growth have been shown to be subject to the same control. The ways in which studies of the action of light have led to these discoveries are illustrated.

1 Text of paper presented before the Annual Meeting of the Soil Science Society of America and the American Society of Agronomy, Purdue University, Lafayette, Ind., August 4–8, 1958.

2 Chief Chemist, Mineral Nutrition Laboratory for Pioneering Research, Soil and Water Conservation Research Division, ARS, IJSDA, Beltsville, Md.

Received for publication August 15, 1958.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
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 © 1958 by the American Society of Agronomy.