Letter | Published:

Physiological Specialization in Erysiphe graminis DC. in Oats

Naturevolume 199pages11111112 (1963) | Download Citation



PHYSIOLOGICAL specialization has been reported in powdery mildew (Erysiphe graminis DC.) with f.sp. hordeae attacking Hordeum species1 and f.sp. tritici on species of Triticum2, but there is no record of such specialization in avenae.

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  1. 1

    Mains, E. B., and Dietz, S. M., Phytopath., 20, 229 (1930).

  2. 2

    Mains, E. B., Proc. U.S. Nat. Acad. Sci., 19, 49 (1933).

  3. 3

    Griffiths, D. J., Ph.D. thesis, Univ. Wales (1954) (unpublished).

  4. 4

    Jones, E. T., and Griffiths, D. J., Trans. Brit. Mycol. Soc., 35, 71 (1952).

  5. 5

    Cherewick, W. J., Canad. J. Res., C, 22, 52 (1944).

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  1. Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth

    • J. D. HAYES
    •  & W. S. CATLING


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