Partial Resistance to Heterodera avenae in Wheat Lines with the 6M v Chromosome from Aegilops ventricosa

Authors

  • R. Rivoal
  • J. Jahier
  • M. Hulle

Abstract

Lines of wheat with the 6M[supv] chromosome from Aegilops ventricosa display partial resistance to both pathotypes Hal2 and Ha41 of Heterodera avenae. With either pathotype, the effect of this alien chromosome on cyst production, size, and fecundity was expressed in resistance tests. Partial resistance of five 6M[supv](6D) substitution lines varied according to the intrinsic cyst-forming capacity of the nematode pathotypes and the recipient germplasms. Such partial resistance can be utilized in wheat breeding lines for integrated management of the cereal cyst nematode. Key words: addition line, Aegilops ventricosa, breeding, cereal cyst nematode, gene, Heterodera avenae, nematode, partial resistance, pathotype, resistance, resistance test, substitution line, Triticum aestivum.

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Published

1993-06-15

Issue

Vol. 25, No. 2 (June 1993)

Section

Articles

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