Effectiveness of Resistance Genes to Septoria tritici Blotch (Stb) in Differential Cultivares of Wheat against Zymoseptoria tritici Isolates

Document Type : Research Paper

Authors

1 Ph.D. Student of Plant Pathology, Department of Plant Protection, Faculty of Plant Production, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan-Iran,

2 Associate Professors, Department of Plant Breeding & Biotechnology, Faculty of Plant Production, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan-Iran,

3 Associate Professor, Department of Plant Protection, Faculty of Crop Sciences, University of Agricultural Sciences & Natural Resources, Sari-Iran

4 Research Associate Professor, Division of Plant Protection Research, Golestan Agricultural and Natural Resources Research and Education Center. Agricultural Research, Education and Extension Organization (AREEO), Gorgan, Iran.

Abstract

Abstract
Septoria leaf blotch (STB) disease, caused by Zymoseptoria tritici, is one of the most important diseases of wheat in all over the world and Iran. Genetic resistance is the most important and economical strategy to control this disease. Continuous monitoring of the fungus populations is indispensable to study the efficiency of Stb resistant genes. In this study, virulence pattern of five different isolates on differential cultivars of wheat with resistance genes and the effectiveness of these genes against isolates were studied at seedling stage under greenhouse conditions. The results showed that BK94 and BK56 were the most and the least virulent isolates on differential cultivars, respectively. M3 and Arina were resistant to all isolates. TE9111, Riband and Flame were resistant to three, two and two isolates, respectively. The other differential cultivars were susceptible against the tested isolates. Among the Stb genes, Stb15, Stb16 and Stb17 were the most effective resistance genes to all isolates, therefore they can be used as resistance sources to STB in breeding programs in Iran.
 

Keywords

References

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Journal of Applied Research in Plant Protection
Volume 6, Issue 3
December 2017
Pages 109-124

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  • Receive Date: 23 December 2017
  • Accept Date: 23 December 2017

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