Summary
Components of partial resistance of wheat seedlings to Septoria nodorum were measured in a glasshouse. Incubation period, infection frequency, latent period, lesion size, lesion cover, necrosis and unit spore production were recorded on 41 Triticum genotypes. There was no clear evidence of associated variation in components and multivariate analyses were used to elucidate such relationships. Factor analysis indicated that pathogen-induced necrosis, related possiby to toxin susceptibility, and unit spore production were major components of partial resistance to S. nodorum. Principal component analysis was used to characterise genotypes: associated with a continuous general resistance could be a high level of pathogen-induced necrosis or a high unit spore production, but rarely both in the same genotype.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ao-Chhoun Hann, 1977. Studies on the epidemiology of Septoria spp. on wheat. Ph.D. Thesis, University of Wales.
Baker, E. A., 1978. Septoria—the lurking threat to wheat yields. EPPO Bulletin 8: 9–20.
Berger, R., 1977. Application of epidemiological principles to achieve plant disease control. Ann. Rev. Phytopath. 15: 165–183.
Bousquet, J. F. & M. Skajennikoff, 1974. Isolement et mode d'action d'une phytoxine produite en culture par Septoria nodorum Berk. Phytopath. Zeitschr. 80: 355–360.
Cooke, B. M. & D. G. Jones, 1970. A field inoculation method for Septoria tritici and Septoria nodorum. Pl. Path. 9: 72–74.
Jeger, M. J., 1980. Multivariate models of the components of partial resistance. Prot. Ecol. 2: 265–269.
Jeger, M. J., E. Griffiths & D. G. Jones, 1981. Effects of cereal cultivar mixtures on disease epidemics caused by splash-dispersed pathogens. In: J. F. Jenkin & R. T. Plumb (Eds), Strategies for the control of cereal disease. Blackwell Scientific Publications, Oxford: 81–88.
Johnson, D. A. & R. D. Wilcoxson, 1978. Components of slow rusting in barley infected with Puccinia hordei. Phytopathology 68: 1470–1474.
Jöreskog, K. G., 1971. A general method for analysis of covariance structures. Biometrika 57: 239.
Kendall, M., 1975. Multivariate analysis. C. Griffin & Co. Ltd., London.
Kent, S. S. & G. A. Strobel, 1976. Phytotoxin from Septoria nodorum. Trans. Br. Mycol. Soc. 67: 354–358
Lancashire, P. D. & D. G. Jones, 1983. Components of partial resistance to Rhynchosporium secalis in spring barley. Annals of Applied Biology (in press).
Little, R. & J. K. Doodson, 1974. A technique for assessing the reaction of wheat varieties to Septoria nodorum (Berk) infection and the preparation of recommended list figures. Journal of the National Institute of Agricultural Botany 13: 152–159.
Neervoort, W. J. & J. E. Parlevliet, 1978. Partial resistance of barley to leaf rust, Puccinia hordei. V. Analysis of the components of partial resistance in eight barley cultivars. Euphytica 27: 33–39.
Ohm, H. W. & G. E. Shaner, 1976. Three components of slow leaf rusting at different growth stages in wheat. Phytopathology 66: 1356–1360.
Parlevliet, J. E., 1979. Components of resistance that reduce the rate of epidemic development. Ann. Rev. Phytopath. 17: 203–222.
Parlevliet, J. E., W. H. Lindhout, A.van Ommeren & H. J. Kuiper, 1980. Level of partial resistance to leaf rust, Puccinia hordei, in West European barley and how to select for it. Euphytica 29: 1–8.
Parlevliet, J. E. & A.van Ommeren, 1981. The development of the leaf rust, Puccinia hordei, population during winter, spring and early summer in 11 winter barley cultivars. Neth. J. Pl. Path. 87: 131–137.
Rahe, J. E., 1981. Lack of correlation between field and laboratory tests for resistance with special reference to white rot of onions. In: R. C. Staples (Ed.). Plant disease control. John Wiley & Sons, Inc., New York: 193–200.
Rapilly, F. & E. Jolivet, 1976. Construction d'une modèle (EPISEPT) permettant la simulation d'une épidémic de Septoria nodorum Berk. sur blé. Revue Stat. Appl. 24: 31–60.
Scharen, A. L. & Z. Eyal, 1980. Measurement of quantitative resistance to Septoria nodorum in wheat. Pl. Dis. 64: 492–496.
Scharen, A. L. & J. M. Krupinsky, 1970. Cultural and inoculation studies of Septoria nodorum, cause of glume blotch of wheat. Phytopathology 60: 1480–1485.
Shaner, G., 1973. Reduced infectability and inoculum production as factors of slow mildewing in Knox wheat. Phytopathology 63: 1307–1311.
Shaner, G. & R. E. Finney, 1980. New sources of slow leaf rusting in wheat. Phytopathology 70: 1183–1186.
Shaner, G. & F. D. Hess, 1978. Equations for integrating components of slow leaf-rusting resistance in wheat. Phytopathology 68: 1464–1469.
Vanderplank, J. E., 1963. Plant diseases: Epidemics and control. Academic Press, London.
Young, S. A. & R. L. Powelson, 1976. Quantitative epidemiology of non-specific resistance in wheat to yellow rust. Proc. 4th Eur. Mediterranean Cereal Rusts Conf., Interlaken, Switzerland, p. 68.
Zadoks, J. C., 1971. Systems analysis and the dynamics of epidemics. Phytopathology 61: 600–610.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Jeger, M.J., Gareth Jones, D. & Griffiths, E. Components of partial resistance of wheat seedlings to Septoria nodorum . Euphytica 32, 575–584 (1983). https://doi.org/10.1007/BF00021470
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00021470