Agronomy Journal Journal of Natural Resources and Life Sciences Education
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Published online 1 March 1956
Published in Agron J 48:102-106 (1956)
© 1956 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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The Cytogenetic Behavior of the Progeny from a Backcross (Sorghum vulgare. x S. halepense. x S. vulgare1)

Henry H. Hadley and J. L. Mahan2

Synopsis: Most of 70 backcross progeny plants from pollinating a 30-chromosome hybrid by Sweet Sudangrass had 20 chromosomes. Fertility was low and varied greatly among plants. At the 20-chromosome level, selection seemed promising except for rhizomatous pure lines. Data suggest extraction of pure lines and their combination in synthetics or first generation hybrids.

1 Contribution from the Genetics Department, Texas Agr. Exp. Sta., College Station, Texas. Published by permission of the Director of the Texas Agr. Exp. Sta.

2 Associate Professor of Genetics and former Graduate Student in Genetics, respectively.

Received for publication October 21, 1955.




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Copyright © 1956 by the American Society of Agronomy.