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On cyst-like bodies, resembling cysts of Heterodera schachtii of common occurrence in British Soils

Published online by Cambridge University Press:  05 June 2009

Marjorie J. Triffitt
Marjorie J. Triffitt
Affiliation:
(Field Officer, Institute of Agricultural Parasitology, London School of Hygiene and Tropical Medicine).
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Extract

In 1928 a description of the morphology of three strains of Heterodera schachtii attacking beet, oats and potatoes respectively, was published in the Journal of Helminthology by the present writer. This was followed in 1929 by a second publication in which the morphology of strains of the nematode attacking beet, oats, hops, mangolds and potatoes were described. In the earlier paper it was noted that cysts of the potato-strain in Hertfordshire were smaller both in average and maximum dimensions than were cysts in soil from South Lincolnshire. The Hertfordshire land had been infected by the addition of South Lincolnshire soil and the reduction in cyst-size occurred in adjacent portions of the plot to which the infection had spread during the cultivation of two successive potato crops. It was concluded that this decrease in size was a reaction to the difference in soil type, possibly associated with available oxygen.

Type
Research Article
Information
Journal of Helminthology , Volume 13 , Issue 2 , May 1935 , pp. 59 - 66
Copyright
Copyright © Cambridge University Press 1935

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References

Goffart, H., 1934.—“Die Bestimmung von Rüben-, Hafer- und Kartoffelnematoden auf grund von Bodenuntersuchungen.” Z. PflKrankh., Bd xliv, pp. 36–41. (W. L. 23540b.)Google Scholar
Triffitt, M. J., 1928.—“On the Morphology of Heterodera schachtii with Special Reference to the Potato-strain.” J. Helminth., vol. vi, pp. 39–50. (W. L. 11224b.)CrossRefGoogle Scholar
Triffitt, M. J., 1929.—“Further Observations on the Morphology of Heterodera schachtii, with Remarks on the Bionomics of a Strain attacking Mangolds in Britain.” J. Helminth., vol. vii, pp. 119–140. (W. L. 11224b.)CrossRefGoogle Scholar