HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Johnston, T. J. Articles by Pendleton, J. W. Search for Related Content PubMed Articles by Johnston, T. J. Articles by Pendleton, J. W. Agricola Articles by Johnston, T. J. Articles by Pendleton, J. W.

Contribution of Leaves at Different Canopy Levels to Seed Production of Upright and Lodged Soybeans (Glycine max (L.) Merrill)¹

In a 2-year study at Urbana, Illinois, upright soybeans (Glycine max (L.) Merrill) yielded 10% more than naturally lodged plants. Defoliation treatments applied to the upper, middle and lower third of individual soybean plants growing in natural ecosystems reduced their seed yields by 17, 22 and 4% respectively as compared to nondefoliated plants. Removal of leaves from a particular area of the plant generally decreased seed yields within that area but also affected the yields of other areas of the plant.

Key Words: lodging • defoliation • leaf efficienc

² Research Assistant (now Assistant Professor of Crop Science, Michigan State University, E. Lansing, Mich. 48823) and Professor of Agronomy, University of Illinois, Urbana. Ill. 61801.

Received for publication September 28, 1967.