Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 6:187-190 (1966)
© 1966 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Hordeum jubatum L. Crosses with Hordeum compressum Griseb1

A. B. Schooler, Jill Nelson and Ann Arfsten2

A highly fertile amphiploid (2n=42) was obtained between H. jubatum (2n=28) and H. compressum (2n=14). The F1 plants were sterile, taller than either parent, and had a chromosome complement of 2n=21. The amphiploid was obtained by doubling the chromosomes of the F1 hybrid by colchicine treatment. The embryo culture technique was used in obtaining the F1 and amphiploid hybrid plants.

1 Published with the permission of the Director of the North Dakota Agr. Exp. Sta. as Journal Article No. 77. The authors gratefully acknowledge the support of the Malting Barley Improvement Association, Milwaukee, Wis.

2 Associate Professor, North Dakota State University, Fargo, and NSF high school research participation students.

Received for publication July 6, 1965.




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