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The effect of calcium nutrition on the incidence of internal rust spot in the potato

Published online by Cambridge University Press:  27 March 2009

G. F. Collier ,
D. C. E. Wurr  and
Valerie C. Huntington
G. F. Collier
Affiliation:
National Vegetable Research Station, Wellesbourne, Warwick CV35 9EF
D. C. E. Wurr
Affiliation:
National Vegetable Research Station, Wellesbourne, Warwick CV35 9EF
Valerie C. Huntington
Affiliation:
National Vegetable Research Station, Wellesbourne, Warwick CV35 9EF
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Summary

Tubers produced by potato plants grown in vermiculite and supplied with either 0, 1 or 3 mM calcium chloride solution developed brown necrotic lesions of internal rust spot. Plants supplied with 9 and 27 mM calcium chloride solution did not show the symptoms and had a substantially greater concentration of calcium in the tuber dry matter. It is concluded that internal rust spot is a physiological disorder associated with a low concentration of calcium in the affected tubers.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 91 , Issue 1 , August 1978 , pp. 241 - 243
Copyright
Copyright © Cambridge University Press 1978

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