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Changes in Foliar Host Reaction to Ascochyta Rabiei With Plant Maturity

Author

Listed:
  • Vicki Elliott
  • Paul Taylor
  • Rebecca Ford

Abstract

Ascochyta rabiei is the most significant foliar disease of chickpea (Cicer arietinum) worldwide, and can cause both yield loss and reduced seed quality. Significant mean disease score differences were observed from the reactions among a collection of Ascochyta rabiei isolates and chickpea hosts at both seedling and maturity growth stages (P<0.000). Although isolates ranked similarly within their range of pathogenicity at either growth stage, the ranking of host disease reaction was different. This suggests that genotype-specific expression of resistance genes to A. rabiei may be related to growth stage. Hence, durable selection methods for resistance will require screening of isolates representative of the pathogenicity within the population on target genotypes at growth stages representative of the type of resistance being sought, for example seedling resistance or pod resistance.

Suggested Citation

  • Vicki Elliott & Paul Taylor & Rebecca Ford, 2013. "Changes in Foliar Host Reaction to Ascochyta Rabiei With Plant Maturity," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 5(7), pages 1-29, June.
    • Handle: RePEc:ibn:jasjnl:v:5:y:2013:i:7:p:29
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    More about this item

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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