Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 9:835-837 (1969)
© 1969 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Vegetative and Floral Responses of Three Alfalfa Genetic Stocks to Growth Regulators1

K. J. Yeh and E. T. Bingham2

Three alfalfa clones related by descent, but carrying genes producing simple (sl), trifoliolate (tf), and multifoliolate (mf) leaves, respectively, responded differently to daily treatment with indoleacetic acid (IAA), gibberellic acid (GA), and triiodobenzoic acid (TIBA). Plant height, leaflet and floral characteristics, and selfed-seed set of the tf clone were comparatively stable under all treatments, whereas sl and mf clones were very sensitive and affected both positively and negatively by growth regulators. Results indicated that GA may be useful in enhancing the growth and seed production of specific stocks.

Key Words: Indoleacetic acid • Gibberellic acid • Triiodobenzoic acid

1 Published with the approval of the director of the Wisconsin Agricultural Experiment Station. Supported in part by the Research Committee of the Graduate School from funds supplied by the Wisconsin Ahunni Research Foundation.

2 Graduate Assistant and Assistant Professor, Agronomy Department, University of Wisconsin, Madison 53706.

Received for publication October 25, 1968.




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The SCI Journals Agronomy Journal Vadose Zone Journal
Journal of Natural Resources
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Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1969 by the Crop Science Society of America.