Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 May 1965
Published in Agron J 57:293-296 (1965)
© 1965 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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The Growth and Yield of Corn. IV. Environmental Effects on Grain Yield Components of Mature Ears1

A. L. Hatfield, G. R. Benoit and J. L. Ragland2

Synopsis: Corn was grown in 6 environmental combinations in each of 2 years. Grain yield was related to emergence date and to total hours of daylight during the grain formation period. The correlation of ear components with yield and with themselves was drastically affected by environmental factors associated with season of growth and soil moisture. The variations in the numerical values due to environmental changes suggest that ear component analysis in a suboptimum environment is of little value for determining genetic inheritance.

1 Contribution of the Agronomy Department, Kentucky Agr. Exp. Sta. in cooperation with the Division of Agricultural Development of the Tennessee Valley Authority and published with approval of the Experiment Station Director and TVA. Acknowledgement is made of the help by Gary Hicks in the electronic data processing for this study.

2 Assistant Professor and Associate Professor of Agronomy, repectively, Agronomy Department, University of Kentucky, Lexington

Received for publication September 28, 1964.




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 © 1965 by the American Society of Agronomy.