Potato Research

, Volume 41, Issue 4, pp 311–317 | Cite as

Heterosis and combining ability analysis for resistance to early blight (Alternaria solani) in potato

  • J. Gopal
Full Papers


In an epiphytotic year of early blight, data were recorded on its incidence in 72 progenies (18 females x 4 males) and their parents planted in a randomised complete block design at the Punjab Agricultural University, Ludhiana, India. Combining ability analysis showed that both additive and non-additive gene action were important, with a preponderance of the latter in the inheritance of resistance to early blight. In general, progenies were as good as or better than mid-parent values. Crosses involving both or at least one parent with good general combining ability resulted in heterotic early blight resistant progenies. Promising parents and crosses were identified.

Additional keywords

Solanum tuberosum L. general combining ability specific combining ability 


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Copyright information

© Kluwer Academic Publishers 1998

Authors and Affiliations

  • J. Gopal
    • 1
  1. 1.Division of Genetics and Plant BreedingCentral Potato Research InstituteShimlaIndia

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