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Cross-protection in the blast disease ofPanicum repens L.

  • A. Hilda
  • S. Suryanarayanan
Article
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Abstract

The occurrence and nature of cross-protection in the ‘blast’ disease ofPanicum repens L. were studied using detached leaves of the host, two incompatible (P 1,M 1) isolates and a compatible (PR) isolate. Protection was evident when leaf tissues were inoculated with a mixture ofP 1 andPR conidia but not with a mixture ofM 1 andPR conidia. However, prior inoculation of the leaves with eitherP 1 orM 1 protected the leaves against blast caused by the compatiblePR isolate but the protection was highly localized. The nature of protection is discussed in terms of competition between the isolates for infection sites and interactions between the host and the preinoculant.

Keywords

Germ Tube Conidial Suspension Blast Disease Prior Inoculation Germ Tube Length 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Indian Academy of Sciences 1976

Authors and Affiliations

  • A. Hilda
    • 1
  • S. Suryanarayanan
    • 1
  1. 1.University Botany LaboratoryMadras

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