Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-25T12:46:07.593Z Has data issue: false hasContentIssue false

Heterodera rostochiensis Population Density in Relation to Potato Growth

Published online by Cambridge University Press:  05 June 2009

B. G. Peters
Affiliation:
Imperial College, London, S.W.7

Extract

By exposing potato plants in pots to a graded series of inocula of cysts of Heterodera rostochiensis, effects on the plant host have been investigated in terms of growth of shoots and tubers. High inocula reduce both criteria severely, but it appears that longer shoots and a larger weight of larger tubers are produced by plants exposed to a very low inoculum than by uninfested controls.

Effects on final eelworm population show that multiplication is highest at the lowest inocula but that the net highest population results from a moderate inoculum. Thus, the kind of inoculum which would stimulate crop yields, would also lead to a large eelworm population: highest potato yields were associated with an eelworm multiplication factor of about ten-fold.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1961

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ellenby, C., 1954.—“Environmental determination of the sex ratio of a plant parasitic nematode.Nature, Lond., 174, 1016. (W.L. 14900)CrossRefGoogle Scholar
Fisher, R. A. and Yates, F., 1943.—Statistical Tables. London and Edinburgh, 2nd. Ed., pp. 2022, 62.Google Scholar
Lownsbery, B. F. and Peters, B. G., 1955.—“The relation of the tobacco cyst nematode to tobacco growth.Phytopathology, 45, (3), 163167. (W.L. 16273)Google Scholar