Potential of Hydroxamic Acids in Breeding for Aphid Resistance in Wheat

Carlos A. Escobar, Hermann M. Niemeyer

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


Swedish wheats were analysed at the seedling stage for hydroxamic acids (Hx), a family of natural aphid resistance factors. Analysis comprised the historical development from old landraces to modern cultivars, and included cultivars in the Swedish National List of Cultivars for 1992-93. Spring and winter wheats contained similar average Hx concentrations, 2.12±0.801 (n = 26) and 2.37 ± 0.816 (h = 49) mmol/kg fr. wt, respectively. Cultivars recommended for 1992-93 showed lower levels of Hx, 1.14 + 0.574 (n = 7) and 1.97 + 0.751 (n = 8), respectively. Breeding wheat for higher Hx levels as a means of obtaining increased aphid resistance is discussed.

Original languageEnglish
Pages (from-to)163-167
Number of pages5
JournalActa Agriculturae Scandinavica Section B: Soil and Plant Science
Issue number3
Publication statusPublished - Sep 1993



ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science


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