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Genetics of resistance to P3 isolate of Phytophthora blight in pigeonpea

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Abstract

Seedlings from six crosses between susceptible × resistant and two between susceptible parents were screened against P3 isolate of Phytophthora drechsleri f. sp. cajani in the glasshouses. Disease reaction was scored on a rating scale of 1–5. Resistance was found to be controlled by one dominant gene and some minor genes and is affected by ontogeny. The resistance gene appeared to be different from the one reported earlier (Pd1) and is designated here as Pd3.

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Authors and Affiliations

  1. Department of Genetics and Plant Breeding, G.B. Pant University of Agriculture and Technology, Pantnagar, 263 145, India

    A.K. Gupta, I.S. Singh & G.C. Bajpai

  2. Crop Protection Division, ICRISAT Asia Centre, Patancheru, 502 324, India

    M.V. Reddy

Authors
  1. A.K. Gupta
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  2. I.S. Singh
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  3. M.V. Reddy
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  4. G.C. Bajpai
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Gupta, A., Singh, I., Reddy, M. et al. Genetics of resistance to P3 isolate of Phytophthora blight in pigeonpea. Euphytica 95, 73–76 (1997). https://doi.org/10.1023/A:1002993511235

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  • DOI: https://doi.org/10.1023/A:1002993511235

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