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Published in Crop Sci 12:872-874 (1972)
© 1972 Crop Science Society of America
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Influence of Temperature on Crown Depth Development of Winter Barley1

R. M. Kail, B. J. Kolp and K. E. Bohenenblust2

Ten cultivars of winter barley (Hordeum vulgare L.) were tested for depth of crown development at four temperatures. Some cultivars developed significantly deeper crowns than others at a given temperature; they did not respond the same, however, to all temperatures. Some cultivars produced crowns at approximately the same soil depth at the four temperatures, whereas some cultivars produced deeper crowns, and others, shallower crowns as temperatures were increased from 10 to 24 C. Depth of crown of plants grown at 10 C under controlled conditions was significantly associated with winter survival under field conditions.

Key Words: Winterhardiness • Hordeum vulgare L.

1 Joint contribution from the Plant Science Research Division, ARS, USDA, and the Department of Agronomv, The Pennsylvania Agricultural Experiment Station, University Park, Pa. 16802. Approved for publication on May 1, 1972, as Paper No. 4200, Journal Series. This work was supported in part by The Birkett Mills and The Quaker Oats Company.

2 Research Assistant, Professor of Agronomy and Assistant Professor of Agronomy, Plant Science Division, University of Wyoming, Laramie, Wyo. 82070.

Received for publication June 5, 1972.




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