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Survey of incidence of bunts (Tilletia caries and Tilletia controversa) in the Czech Republic and susceptibility of winter wheat cultivars

Author

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  • Marie Váňová

    (Agricultural Research Institute Kroměříž, Ltd., Kroměříž, Czech Republic)

  • Pavel Matušinský

    (Agricultural Research Institute Kroměříž, Ltd., Kroměříž, Czech Republic)

  • Jaroslav Benada

    (Agricultural Research Institute Kroměříž, Ltd., Kroměříž, Czech Republic)

Abstract

Bunts (caused by Tilletia caries and T. controversa) belong to very important diseases of winter wheat because contaminated commodities (seeds, foods and feeds) affect the marketability of the crop on both domestic and export markets. They can be relatively easily controlled by chemical seed treatments. Due to the availability of effective chemical control, the reaction of wheat cultivars to bunts has so far not been an important trait for plant breeders in some areas of the world. However, if synthetic chemicals are not allowed, like in organic farming, untreated seed may quickly lead to a build-up of bunt to levels that render the crop unmarketable. The use of wheat cultivars partially or fully resistant to bunts could greatly contribute to ease the bunt problem. The reaction of winter wheat cultivars was evaluated in field tests. Seeds of winter wheat were inoculated with teliospores of T. caries. The reaction to T. controversa was studied under heavy natural infestation with spores in the soil. With T. caries, the heaviest infection was found in cvs Drifter and Ebi, while cvs Nela, Brea and Samanta had the lowest. The average level of infection with T. controversa was higher than that of T. caries. The cvs Niagara, Brea and Versailles had significantly lower numbers of bunt ears of T. controversa in 2002. The incidence of both bunts in grain samples that had not been cleaned and sorted after harvest was monitored for 4 years. A total of 1 058 samples collected from various locations in the Czech Republic were analysed for the presence of bunt spores and the species determined. The investigation demonstrated a rather widespread occurrence of bunts across the Czech Republic, with T. controversa being more frequent.

Suggested Citation

  • Marie Váňová & Pavel Matušinský & Jaroslav Benada, 2006. "Survey of incidence of bunts (Tilletia caries and Tilletia controversa) in the Czech Republic and susceptibility of winter wheat cultivars," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 42(1), pages 21-25.
    • Handle: RePEc:caa:jnlpps:v:42:y:2006:i:1:id:2692-pps
    DOI: 10.17221/2692-PPS
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    References listed on IDEAS

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    1. P. Bartoš & V. Šíp & J. Chrpová & J. Vacke & E. Stuchlíková & V. Blažková & J. Šárová & A. Hanzalová, 2002. "Achievements and prospects of wheat breeding for disease resistance," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 38(1), pages 16-28.
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    Cited by:

    1. Veronika DUMALASOVÁ & Leona LEIŠOVÁ-SVOBODOVÁ & Pavel BARTOŠ, 2014. "Common bunt resistance of Czech and European winter wheat cultivars and breeder lines," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 50(3), pages 201-207.
    2. V. Dumalasová & P. Bartoš, 2006. "Wheat reaction to common bunt in the field and in the greenhouse," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 42(SpecialIs), pages 37-41.

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