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The Journal of Heredity 1981:72(2):126-127
© 1981 The American Genetic Association 72:126-127

other

D-genome sources of resistance in Triticum tauschii to Hessian fly

J. H. Hatchett, and B. S. Gill

The authors are, respectively, research entomologist, Plant Science and Entomology Research, Agricultural Research, Science and Education Administration, U.S. Department of Agriculture, and Department of Entomology, Kansas State University, Manhattan, KS 66506; and research cytogeneticist, Department of Plant Pathology, Kansas State University, Manhattan, KS 66506. Cooperative investigations of USDA-SEA-AR and the Kansas Agricultural Experiment Station; contribution 80-368-j, Departments of Entomology and Plant Pathology.

Abstract

Twenty accessions of Triticum tauschii were evaluated for resistance to biotype D of the Hessian fly. Five accessions, three from Iran and two of unknown origin, were highly resistant (antibiosis) to larval feeding. All larvae on resistant plants died in the first instar. The resistance in T. tauschii, the contributor of the D-genome in common wheat, represents new genetic sources of resistance to Hessian fly. Specific long-term objectives include the transfer of resistance from T. tauschii to synthetic hexaploid wheat for use in the development of adpated, Hessian fly-resistant wheat cultivars.


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