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Published online 1 July 1959
Published in Agron J 51:395-397 (1959)
© 1959 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Breeding for Resistance to the Wheat Stem Sawfly1

F. H. McNeal, M. A. Berg, W. D. Hanson and P. Luginbill, Jr.2

Synopsis: Stem solidness readings of F2 plants contribute slightly more information than do actual cutting percentages to the determination of sawfly cutting in the F3 generation. However, average genetic gains expected in the F3 progenies by selecting for stem solidness or percentage sawfly cutting in the F2 generation were negligible and erratic. The results suggest that selection for sawfly resistance in the F2 generation is of little value in breeding resistant varieties.

1 Joint contribution of the Crops and Entomology Research Divisions, ARS, USDA, and the Montana Agr. Exp. Sta., Bozeman. Paper No. 436, Journal Series, Montana Agr. Exp. Sta., published with approval of the director.

2 Agronomists and Geneticist, Crops Research Division; and Entomologist, Entomology Research Division, ARS, USDA.

Received for publication October 27, 1958.




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Copyright © 1959 by the American Society of Agronomy.