Letter | Published:

Internal Seed Disinfection with Pyridine-2-thiol-N-oxide and a Derivative

Abstract

CONVENTIONAL seed disinfectants are unsatisfactory in the combat of internal parasites in seeds because they do not penetrate far enough. Successful disinfection of pea seed carrying the internal fungal parasite Ascochyta pisi has, however, been achieved by Dekker1–3 using the antibiotics rimocidin and pimaricin. Using the same methods and similar material we have now found that the strongly fungicidal agents pyridine-2-thiol-N-oxide and 2-pyridyl-N-oxide-isothiourea hydrobromide are as effective as these antibiotics.

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References

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    Dekker, J., Nature, 175, 689 (1955).

  2. 2

    Oort, A. J. P., and Dekker, J., Med. Landbouwhogeschool en Opzoekingsstations Gent, 20, 381 (1955).

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    Dekker, J., Tijdschr. Pl. ziekten, 63, 65 (1957).

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    Rombouts, J. E., and Kaars Sijpesteijn, A., Ann. App. Biol. (in the press).

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    Kaars Sijpesteijn, A., Janssen, M. J., and Dekhuijzen, H. M., Nature, 180, 505 (1957).

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