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Development of a Seed Treatment with Pochonia chlamydosporia for Biocontrol Application

Author

Listed:
  • Jana Uthoff

    (Fermentation and Formulation of Biologicals and Chemicals, Hochschule Bielefeld-University of Applied Sciences and Arts (HSBI), Interaktion 1, 33619 Bielefeld, Germany
    Plant Biochemistry and Physiology, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany)

  • Desiree Jakobs-Schönwandt

    (Fermentation and Formulation of Biologicals and Chemicals, Hochschule Bielefeld-University of Applied Sciences and Arts (HSBI), Interaktion 1, 33619 Bielefeld, Germany
    Bioengineering and Sustainability, Westphalian University of Applied Sciences, August-Schmidt-Ring 10, 45665 Recklinghausen, Germany)

  • Karl-Josef Dietz

    (Plant Biochemistry and Physiology, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany)

  • Anant Patel

    (Fermentation and Formulation of Biologicals and Chemicals, Hochschule Bielefeld-University of Applied Sciences and Arts (HSBI), Interaktion 1, 33619 Bielefeld, Germany)

Abstract

Seed treatment is a powerful technique for adding beneficial ingredients to plants during the seed preparation process. Biopolymers as drying agents and delivery systems in seed treatments were investigated for their biocompatibility with blastospores of the nematophagous fungus Pochonia chlamydosporia . To produce a novel seed treatment for the cover crop Phacelia tanacetifolia , xanthan gum TG and gellan gum were the most promising biopolymers in combination with potato starch and bentonite. The seed treatment process as well as the drying process were specially designed to be scalable, which make it suitable for applying the developed seed treatment in agriculture. Application of gellan gum in seed treatments led to 6.3% ± 1.6% of vital blastospores per seed compared to 3.8% ± 0.3% of vital blastospores when applying xanthan gum. Storage tests for seed treatments with 0.5% gellan gum indicated a higher stability at 4 °C compared to storage at 21 °C. After 42 days of storage at 4 °C, 54.1% ± 15.1% of the applied blastospores were viable compared to 0.3% ± 0.8% at 21 °C. This novel seed treatment application with P. chlamydosporia blastospores includes the seed treatment procedure, drying process, and storage tests and can easily be upscaled for application in agriculture.

Suggested Citation

  • Jana Uthoff & Desiree Jakobs-Schönwandt & Karl-Josef Dietz & Anant Patel, 2024. "Development of a Seed Treatment with Pochonia chlamydosporia for Biocontrol Application," Agriculture, MDPI, vol. 14(1), pages 1-12, January.
    • Handle: RePEc:gam:jagris:v:14:y:2024:i:1:p:138-:d:1320663
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    References listed on IDEAS

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    1. V. Brant & K. Neckář & J. Pivec & M. Duchoslav & J. Holec & P. Fuksa & V. Venclová, 2009. "Competition of some summer catch crops and volunteer cereals in the areas with limited precipitation," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 55(1), pages 17-24.
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