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Published online 1 November 1958
Published in Agron J 50:674-677 (1958)
© 1958 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Response of Soybeans to Leaf and Pod Removal1

Dean F. McAlister and Orland A. Krober2

Synopsis: Defoliation caused reduction in all measures of yield. Severe, 8070, depodding reduced seed yield but increased weight per seed and stem yield. Moderate depodding, up to 40%, increased seed weight enough to maintain seed yield. Eighty percent depodding increased sugars, starch, and nitrogen in leaves and stems. Eighty percent defoliation increased the iodine number of seed oil, but decreased the oil and protein in seeds. Depodding increased seed protein but decreased the oil content and iodine number.

1 Publication No. 308 of the U. S. Regional Soybean Laboratory, Urbana, Illinois.

2 Former Plant Physiologist, USDA, ARS, Crops Research Division, nclw Head, Department of Agronomy, University of Arizona; and Chemist, USDA, ARS, Crops Research Division; respectively.

Received for publication March 26, 1958.


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Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
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Environmental Quality		 The Plant Genome
Copyright © 1958 by the American Society of Agronomy.