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The reaction of two spring wheat varieties exposed to epidemics of Septoria nodorum and S. tritici of varying intensity and duration

Published online by Cambridge University Press:  27 March 2009

D. G. Jones  and
R. D. W. Rowling
D. G. Jones
Affiliation:
Department of Agricultural Botany, University College of Wales, Aberystwyth, Dyfed.
R. D. W. Rowling
Affiliation:
Department of Agricultural Botany, University College of Wales, Aberystwyth, Dyfed.
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Summary

Two spring wheat varieties, Cardinal and Kolibri, were inoculated with Septoria nodorum Berk and S. tritici Rob. & Desm. at Growth Stages 3, 7, 10.1 and 10.5 of the Feekes' scale. The treatments included single inoculations at each growth stage and multiple inoculations at 2, 3 and 4 of the above growth stages.

Thousand-grain weights of both varieties were reduced by inoculation with either pathogen, S. nodorum causing the largest reduction. Numbers of grain per head in Cardinal were severely reduced by S. nodorum, particularly after the multiple inoculations. In Kolibri, there was evidence of increases in numbers of grain with S. tritici inoculation which nullified the grain size reductions. The results are discussed in relation to compensatory mechanisms and disease tolerance.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 87 , Issue 2 , October 1976 , pp. 401 - 406
Copyright
Copyright © Cambridge University Press 1976

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References

Anon. (1968). Provisional guide for the assessment of cereal diseases. Plant Pathology Laboratory, Harpenden, Herts. Ministry of Agriculture, Fisheries and Food. (Unpublished.)Google Scholar
Bockmann, H. (1963). Kunstliche Freilandinfektionen mit den Erregern der Fussund Ahrenkrankheiten des Weizens. III. Die Schadensanalyse. Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 15, 135–9.Google Scholar
Bronnimann, A. (1968). On Septoria nodorum Berk., the pathogen causing leaf blotch and glume blotch of wheat. Phytopathologische Zeitschrift 61, 101–46.Google Scholar
Cooke, B. M. & Jones, D. G. (1970). The effect of near ultraviolet irradiation and agar medium on the sporulation of Septoria nodorum and S. tritici. Transactions of the British Mycological Society 5, 221–6.Google Scholar
Evans, L. T., Bingham, J. & Roskams, M. A. (1972). The pattern of grain set within ears of wheat. Australian Journal of Biological Science 25, 1–8.Google Scholar
Jones, D. G. & Cooke, B. M. (1969). The epidemiology of Septoria tritici and S. nodorum. I. A tentative key for assessing Septoria tritici infection on wheat heads. Transactions of the British Mycological Society 53, 39–46.Google Scholar
Jones, D. G. & Cooke, B. M. (1970). Septoria tritici Rob. & Desm. on the heads of winter wheat in West Wales. Plant Pathology 19, 99–100.Google Scholar
Jones, D. G. & Odebunmi, K. (1971). The epidemiology of Septoria tritici and S. nodorum. IV. The affect of inoculation at different growth stages and on different plant parts. Transactions of the British Mycological Society 56, 281–8.Google Scholar
Large, E. C. (1954). Growth stages in cereals. Plant Pathology 3, 128–9.CrossRefGoogle Scholar
Leakey, R. R. B. (1971). The effect of changing plant density on floral initiation and development of barley (cv. Sultan). Journal of Agricultural Science, Cambridge 77, 135–9.Google Scholar
Shipton, W. A., Boyd, W. R. J., Roseille, A. A. & Shearer, B. I. (1971). The common Septoria diseases of wheat. Botanical Review 37, 231–62.Google Scholar
Williams, J. R. & Jones, D. G. (1972). The epidemiology of Septoria tritici and S. nodorum. VI. Effect of time of initial infection on disease development and grain yield in spring wheats. Transactions of the British Mycological Society 59, 273–83.Google Scholar