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Cross-protection in the blast disease ofPanicum repens L.

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Proceedings / Indian Academy of Sciences

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.

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Authors and Affiliations

  1. University Botany Laboratory, 60005, Madras

    A. Hilda & S. Suryanarayanan F.A.Sc.

Authors
  1. A. Hilda
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  2. S. Suryanarayanan F.A.Sc.
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Memoir No. 217 from Centre for Advanced Study in Botany.

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Hilda, A., Suryanarayanan, S. Cross-protection in the blast disease ofPanicum repens L.. Proc. Indian Acad. Sci. 84, 215–225 (1976). https://doi.org/10.1007/BF03045544

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  • DOI: https://doi.org/10.1007/BF03045544

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