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Published online 1 February 1957
Published in Agron J 49:88-92 (1957)
© 1957 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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A Rapid Method for Determining Winterhardiness in Alfalfa1

J. B. A. Rodger, G. G. Williams and R. L. Davis2

Synopsis: A laboratory technique is described for evaluating the winter-hardiness of alfalfa. Seeds were germinated in solutions of sodium chloride and sucrose having known osmotic pressures. As osmotic pressures were increased the rapidity and amount of germination decreased, however, the decrease was more marked in the seed of hardy varieties.

1 Submitted by the senior author in partial fulfillment of the requirements for the M.S. degree at Purdue University. Contribution from the Department of Agronomy, Purdue University, West Lafayette, Indiana. Journal Paper No. 1015, Agricultural Experiment Station. Supported in part by grants from the W. K. Kellogg Foundation.

2 Graduate Fellow, formerly Assistant Professor, now Irrigation Research Director, Olin Mathieson Company, Little Rock, Arkansas and Associate Professor, respectively.

Received for publication August 25, 1956.




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Copyright © 1957 by the American Society of Agronomy.