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Inheritance of adult-plant resistance to Phytophthora capsici in pepper

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Summary

Inheritance studies were conducted to determine the genetic basis of adult-plant resistance in pepper (Capsicum annuum L.) to Phytophthora capsici. F1, backcrosses and F2 populations were developed using the resistant parent Criollo de Morellos 334 and susceptible parents Agronômico 10-G and Yolo Wonder. Pepper plants, at 36 days post-emergence, were inoculated near the base of the stem with an inoculum suspension of 5×104 zoospores/ml. Segregation ratios in the F2 generation of 13 resistant to 3 susceptible plants fit a 2-gene model for resistance with dominant and recessive epistasis.

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Authors and Affiliations

  1. Centro Nacional de Pesquisa de Hortaliças (CNPH)/EMBRAPA, C.P. 0218, 70.359, Brasilia (DF), Brazil

    F. J. B. Reifschneider, L. S. Boiteux, P. T. Della Vecchia & N. Kuroda

  2. The Asian Vegetable Research and Development Center (AVRDC), P.O. Box 42, 741, Shanhua, Tainan, Taiwan, Republic of China

    J. M. Poulos

Authors
  1. F. J. B. Reifschneider
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  2. L. S. Boiteux
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  3. P. T. Della Vecchia
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  4. J. M. Poulos
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  5. N. Kuroda
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Reifschneider, F.J.B., Boiteux, L.S., Della Vecchia, P.T. et al. Inheritance of adult-plant resistance to Phytophthora capsici in pepper. Euphytica 62, 45–49 (1992). https://doi.org/10.1007/BF00036086

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  • DOI: https://doi.org/10.1007/BF00036086

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