Theoretical and Applied Genetics

, Volume 76, Issue 4, pp 550–554 | Cite as

Genetic basis of resistance to zonate leaf spot disease in forage sorghum

  • R. P. S. Grewal
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Summary

Generation mean analysis was carried out for ten crosses between two resistant and two susceptible parents to find the genetic basic of resistance to zonate leaf spot disease in forage sorghum. In all crosses except one, at least one type of non-allelic interaction was present. Both additive and dominance gene effects were significant for most crosses. Duplicate type epistasis was present for the inheritance of this disease. Resistance to this disease revealed overdominance. Appropriate breeding plans were suggested to exploit the disease resistance.

Key words

Zonate leaf spot Gloeocercospora sorghi Foliar disease Alternate breeding 
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Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • R. P. S. Grewal
    • 1
  1. 1.Department of Plant BreedingHaryana Agricultural UniversityHisarIndia

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