European Journal of Plant Pathology

, Volume 117, Issue 2, pp 141–152 | Cite as

The role of seedling infection in epiphytotics of ascochyta blight on chickpea

  • R. B. E. Kimber
  • D. Shtienberg
  • M. D. Ramsey
  • E. S. Scott
Full Research Paper

Abstract

Didymella rabiei, the causal agent of ascochyta blight, survives on infected seeds and seedlings. Diseased seedlings originating from infected seeds occasionally serve as the source for primary infection in chickpea crops. Experiments carried out independently in Australia and in Israel provided quantitative information on the temporal and spatial distribution of ascochyta blight from initial infections and on the relationship between the amount of initial infection and the intensity of subsequent epiphytotics for cultivars differing in susceptibility to the pathogen. Disease spread over short distances (<10 m) from individual primary infections, was governed by rain and wind, and was up to five times greater down-wind than up-wind. Cultivar response to D. rabiei significantly affected the distance and area over which disease spread and the intensity of the disease on infected plants. At onset of the epiphytotic, the relationship between disease spread and time was exponential (P < 0.05; R2 > 0.95) and the area of the resulting foci was over 10 times greater in susceptible cultivars than in resistant cultivars. Regression equations showed the relationship between disease severity and the distance from the focus-plants was inverse-linear for all cultivars tested (P < 0.05). A simulation model based on the experimental data revealed that even if primary infection is infrequent (less than 1% of plants), the consequences are potentially devastating when susceptible cultivars are used. The epidemiological information and simulation model generated by this study provide an increased understanding of the development of an epiphytotic in which the primary foci of disease originate from infected chickpea seedlings.

Keywords

Ascochyta rabiei Gram blight Quantitative epidemiology 

Notes

Acknowledgements

The assistance of Haim Vintal and Judith Lichtenzveig in the study conducted in Israel is acknowledged. We also thank: Larn McMurray and staff of the Field Crop Evaluation and Agronomy, SARDI for sowing and maintaining the Australian trial; Dr Mark Sosnowski and Ms Jenny Davidson for scientific and technical support; Mr Ross Ballard for assistance in revision of this manuscript; and Ms Debra Partington (BiometricsSA) for assistance with statistical analyses. Seed was tested for DNA of D. rabiei by SARDI—Root Disease Testing Service. The Australian component of this study was part of the Honours research of R.B.E. Kimber, with support from the Grains Research and Development Corporation (GRDC), SARDI and the University of Adelaide.

References

  1. Dey, S. K., & Singh, G. (1994). Seedborne infection of Ascochyta rabiei in chickpea and its transmission to aerial plant parts. Phytoparasitica, 22, 31–37.Google Scholar
  2. FAO (2005) From FAOSTAT on-line statistical database. Food and Agriculture Organisation of the United Nations. [http://faostat.fao.org/]: accessed April 2005.Google Scholar
  3. Gossen, B. D., & Morrall, R. A. A. (1986). Transmission of Ascochyta lentis from infected lentil seed and plant residue. Canadian Journal of Plant Pathology, 8, 28–32.CrossRefGoogle Scholar
  4. Hewett, P. D. (1973). The field behaviour of seed-borne Ascochyta fabae and disease control in field beans. Annals of Applied Biology, 74, 287–295.CrossRefGoogle Scholar
  5. Kaiser, W. J., Okhovat, M., & Mossahebi, G. H. (1973). Effect of seed-treatment fungicides on control of Ascochyta rabiei in chickpea seed infected with the pathogen. Plant Disease Reporter, 57, 742–746.Google Scholar
  6. Kaiser, W. J. (1992). Epidemiology of Ascochyta rabiei. In K. B. Singh & M. C. Saxena (Eds.), Disease resistance breeding in chickpea (pp. 117–143). Aleppo, Syria: ICARDA.Google Scholar
  7. Khan, M. S. A. (1999). Epidemiology of ascochyta blight of chickpea in Australia. PhD thesis, Department of Applied and Molecular Ecology, The University of Adelaide.Google Scholar
  8. Khan, M. S. A., Ramsey, M. D., Corbière, R., Infantino, A., Porta-Puglia, A., Bouznad, Z., & Scott, E. S. (1999). Ascochyta blight of chickpea in Australia: Identification, pathogenicity and mating type. Plant Pathology, 48, 230–234.CrossRefGoogle Scholar
  9. Kimber, R. B. E., Scott, E. S., & Ramsey, M. D. (2006). Factors influencing transmission of Didymella rabiei (ascochyta blight) from infected seed of chickpea. European Journal of Plant Pathology, 114, 175–184.CrossRefGoogle Scholar
  10. Kosman, E., & Cohen, Y. (1996). Procedures for calculating the differentiating synergism and antagonism in action of fungicide mixtures. Phytopathology, 86, 1263–1272.Google Scholar
  11. Luthra, J. C., Sittar, A., & Bedi, K. S. (1935). Life-history of gram blight [Ascochyta rabiei (Pass.) Lab. = Phyllosticta rabiei (Pass.) Trot.] on gram (Cicer arietinum L.) and its control in the Punjab. Agriculture and Livestock in India, 5, 489–498.Google Scholar
  12. Mitsueda, T., Hussain, S., Bashir, M., & Ahmad, Z. (1997). Introduction to chickpea blight and its control. Plant Genetic Resources Institute. Islamabad, Pakistan: National Agricultural Research Centre.Google Scholar
  13. Nene, Y. L., & Reddy, M. V. (1987). Chickpea diseases and their control. In M. C. Saxena & K. B. Singh (Eds.), The Chickpea (pp. 233–270). Wallingford, UK: CAB International.Google Scholar
  14. Nene, Y. L., Shiela, V. K., & Sharma, S. B. (1996). A world list of chickpea diseases and pigeon pea pathogens (5th ed.). Andhra Pradesh, India: ICRISAT, Patancheru.Google Scholar
  15. Pande, S., Siddique, K. H. M., Kishore, G. K., Bayaa, B., Gaur, P. M., Gowda, C. L. L., Bretag, T. W., & Crouch, J. H. (2005). Ascochyta blight of chickpea (Cicer arietinum L.): A review of biology, pathogenicity, and disease management. Australian Journal of Agricultural Research, 56, 317–332.CrossRefGoogle Scholar
  16. Pulse Australia (2005) From Pulse Australia online resources: accessed May 2005 [http://www.pulseaus.com.au/statistics_and_market_overview/state_production].
  17. Ramsey, M. D., Khan, S., & Scott, E. (1999). Ascochyta blight of chickpea – a lesson in plant disease. Australasian Plant Pathology Society News, 12, 9.Google Scholar
  18. Reddy, M. V., & Singh, K. B. (1990). Relationship between temperature, relative humidity and Ascochyta blight development in winter-sown chickpea in Syria. Phytopathologia Mediterranea, 29, 159–162.Google Scholar
  19. Trapero-Casas, A., & Kaiser, W. J. (1992). Development of Didymella rabiei, the teleomorph of Ascochyta rabiei, on chickpea straw. Phytopathology, 82, 1261–1266.CrossRefGoogle Scholar
  20. Weltzein, H. C., & Kaack, H. J. (1984). Epidemiological aspects of chickpea Ascochyta blight. In M. C. Saxena & K. B. Singh (Eds.), Ascochyta blight and winter sowing of chickpeas (pp. 35–44). The Hague, The Netherlands: Martinus Nijhoff/ Dr W. Junk.Google Scholar
  21. Zachos, D. G., Panagopoulos, C. G., & Makris, S. A. (1963). Research on the biology, epidemiology and control of anthracnose of chickpea. Annales de I’Institut Phytopathologique Benaki, 5, 167–192.Google Scholar

Copyright information

© Springer Science + Business Media B.V. 2006

Authors and Affiliations

  • R. B. E. Kimber
    • 1
    • 2
  • D. Shtienberg
    • 3
  • M. D. Ramsey
    • 4
  • E. S. Scott
    • 1
  1. 1.School of Agriculture, Food and WineThe University of AdelaideGlen OsmondAustralia
  2. 2.South Australian Research and Development Institute (SARDI)AdelaideAustralia
  3. 3.Department of Plant Pathology, Agricultural Research OrganisationThe Volcani CenterBet-DaganIsrael
  4. 4.Animal and Plant Control CommissionAdelaideAustralia

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