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Published in Crop Sci 9:564-567 (1969)
© 1969 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Mechanisms of Strontium Accumulation in Tissues of Wheat Spikes 1

Lyle E. Craker2 and Lawrence H. Smith3

Studies of strontium accumulation in grain of excised wheat (Triticum aestivum L) spikes indicate that active mechanisms, analogous to those based upon the carrier concept in root absorption studies, mediate this process.

No evidence was found to suggest that Sr is passively accumulated in grain. No relationship, between transpiration rate .and Sr accumulation in gram was found.

Key Words: Ion accumulation in grain • Transpiration and ion accumulation • Ion carriers

1 The research reported in this paper was supported in part by Atomic Energy Commission Contract AT(II-I)1097. Paper No. 6652, Scientific Journal Series, University of Minnesota, St. Paul 55101.

2 Present Address: Plant Physiology Division, Department of the Army, Fort Oetrick, Frederick, Md. 21701.

3 Professor of Crop Physiology, University of Minnesota.

Received for publication December 7, 1968.




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