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

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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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