Euphytica

, Volume 50, Issue 2, pp 171–179 | Cite as

Genetic variation for resistance to Fusarium head blight in bread wheat

  • C. H. A. Snijders
Article

Summary

During a four year period, a total of 258 winter and spring wheat genotypes were evaluated for resistance to head blight after inoculation with Fusarium culmorum strain IPO 39-01. It was concluded that genetic variation for resistance is very large. Spring wheat genotypes which had been reported to be resistant to head blight caused by Fusarium graminearum were also resistant to F. culmorum. The resistant germplasm was divided into three gene pools: winter wheats from Eastern Europe, spring wheats from China/Japan and spring wheats from Brazil. In 32 winter wheat genotypes in 1987, and 54 winter wheat genotypes in 1989, the percentage yield reduction depended on the square root of percentage head blight with an average regression coefficient of 6.6. Heritability estimates indicated that for selection for Fusarium head blight resistance, visually assessed head blight was a better selection criterion than yield reduction.

Key words

Triticum aestivum bread wheat Fusarium culmorum Fusarium head blight scab resistance genetic variation yield reduction 

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Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • C. H. A. Snijders
    • 1
  1. 1.Centre for Plant Breeding Research (CPO)WageningenThe Netherlands

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