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Journal of General Plant Pathology

, Volume 85, Issue 4, pp 273–281 | Cite as

Colonization of winter wheat grain with Fusarium and Alternaria species and influence on pest control management

  • Radivoje JevtićEmail author
  • V. Župunski
  • M. Lalošević
  • S. Tančić Živanov
Fungal Diseases
  • 369 Downloads

Abstract

The interactions among grain-colonizing species on wheat and their effects on incidence and severity of Fusarium head blight are usually neglected in studies. Although saprophytes can predominate over pathogenic species, studies related to the control of saprophytic mycoflora in wheat production are rare. Here we hypothesized that the infection level of Fusarium and contamination level of Alternaria spp. are significantly influenced by environmental factors and their interactions and investigated the relationship between Fusarium and Alternaria spp. under field conditions and estimate its effect on conventional wheat production, The most prevalent species associated with wheat grain were Alternaria spp. (80% in 2012 and 55% in 2013), and the second was F. graminearum (9% in 2012 and 38% in 2013). In general, varieties that are moderately resistant to Fusarium infection are less contaminated with Alternaria spp. compared to susceptible and moderately susceptible varieties. F. graminearum on Alternaria spp. had a strong antagonistic effect on moderately susceptible and susceptible varieties with P < 0.001 using Spearman’s coefficient of correlation. An infection level of F. graminearum over 25% showed antagonistic activity against Alternaria spp. under field conditions. Using prothioconazole + tebuconazole as a chemical measure to prevent F. graminearum infection on susceptible varieties can be related to an increase in the contamination level of Alternaria spp., jeopardizing the effectiveness of seed health control measures.

Keywords

Wheat Fusarium Alternaria Interaction Prothioconazole + tebuconazole 

Notes

Acknowledgements

This research was supported by Bayer Crop Science, Serbia. This study was also funded as part of the project TR 31066, Contemporary breeding of small grains for current and future needs, financed by the Ministry of Education, Science and Technological Development of the Republic of Serbia.

Compliance with ethical standards

Conflict of interest

R. Jevtić, V. Župunski, M. Lalošević, S. Tančić Živanov declare no conflicts of interest.

Research involving human and/or animal participants

This article does not contain any studies by any of the authors using human or animal participants.

Informed consent

Not applicable.

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Copyright information

© The Phytopathological Society of Japan and Springer Japan KK, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Institute of Field and Vegetable CropsNovi SadSerbia

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