<abstract xmlns="http://www.w3.org/1999/xhtml"><p><italic>Sclerotinia sclerotiorum</italic> (Lib.) de Bary is considered as one of the most harmful soilborne pathogens, which reduces productivity of horticultural crops. Currently used chemical or biological methods for the eradication of <italic>S. sclerotiorum</italic> from a soil are not very effective. The aim of this study was to evaluate the possibility of eradication of <italic>S. sclerotiorum</italic> sclerotia from a soil using the <italic>Trichoderma</italic> isolates, which were multiplied on the organic carriers prepared from agro-industrial wastes and by-products: WsA (wheat straw + apple pomaces), WsP (wheat straw + potato pulp) and T-GRAN (dry onion rind, apples and strawberry pomaces, rapeseed meal). The results showed that soil amendment with organic materials overgrown with the <italic>Trichoderma</italic> fungi had a significant reducing effect on <italic>S. sclerotiorum</italic>. Especially effective was the carrier WsA overgrown with <italic>T. virens</italic> TRS114, which completely prevented the survival of sclerotia of <italic>S. sclerotiorum</italic> regardless of the dose of application. Less effective was the WsP carrier. However, addition WsP overgrown with <italic>T. atroviride</italic> TRS40 at the 5% w/v, resulted in survival only 6.7% of sclerotia. In the greenhouse experiments with lettuce, the application of granulates T-GRAN into the soil had different impact on <italic>S. sclerotiorum</italic> depending on the conditions to the pathogen development. In conducive conditions, an addition of the organic substances without <italic>Trichoderma</italic> significantly decreased the yield of lettuce plants. A positive effect on the growth of plants was observed after the application of T-GRAN overgrown with <italic>Trichoderma</italic>.</p></abstract>

Sclerotinia sclerotiorum (Lib.) de Bary is considered as one of the most harmful soilborne pathogens, which reduces productivity of horticultural crops. Currently used chemical or biological methods for the eradication of S. sclerotiorum from a soil are not very effective. The aim of this study was to evaluate the possibility of eradication of S. sclerotiorum sclerotia from a soil using the Trichoderma isolates, which were multiplied on the organic carriers prepared from agro-industrial wastes and by-products: WsA (wheat straw + apple pomaces), WsP (wheat straw + potato pulp) and T-GRAN (dry onion rind, apples and strawberry pomaces, rapeseed meal). The results showed that soil amendment with organic materials overgrown with the Trichoderma fungi had a significant reducing effect on S. sclerotiorum. Especially effective was the carrier WsA overgrown with T. virens TRS114, which completely prevented the survival of sclerotia of S. sclerotiorum regardless of the dose of application. Less effective was the WsP carrier. However, addition WsP overgrown with T. atroviride TRS40 at the 5% w/v, resulted in survival only 6.7% of sclerotia. In the greenhouse experiments with lettuce, the application of granulates T-GRAN into the soil had different impact on S. sclerotiorum depending on the conditions to the pathogen development. In conducive conditions, an addition of the organic substances without Trichoderma significantly decreased the yield of lettuce plants. A positive effect on the growth of plants was observed after the application of T-GRAN overgrown with Trichoderma.

Eradication of <italic>S<sc>clerotinia sclerotiorum</sc></italic> Sclerotia from Soil Using Organic Waste Materials as <italic>T<sc>richoderma</sc></italic> Fungi Carriers

Research Institute of Horticulture, Konstytucji 3 Maja 1/3 str., 96-100 Skierniewice, Poland

Journal of Horticultural Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Eradication of  Sclerotia from Soil Using Organic Waste Materials as  Fungi Carriers

Sclerotinia sclerotiorum (Lib.) de Bary is considered as one of the most harmful soilborne pathogens, which reduces productivity of horticultural crops....

Eradication of Sclerotinia sclerotiorum Sclerotia from Soil Using Organic Waste Materials as Trichoderma Fungi Carriers

Published Online: Jul 27, 2016

Page range: 101 - 110

Received: Jan 01, 2016

Accepted: Apr 01, 2016

DOI: https://doi.org/10.1515/johr-2016-0012

Keywords
sclerotia, organic wastes

© 2016 Urszula Smolińska et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Eradication of Sclerotinia sclerotiorum Sclerotia from Soil Using Organic Waste Materials as Trichoderma Fungi Carriers

Published Online: Jul 27, 2016

Page range: 101 - 110

Received: Jan 01, 2016

Accepted: Apr 01, 2016

DOI: https://doi.org/10.1515/johr-2016-0012

Keywordssclerotia, organic wastes

© 2016 Urszula Smolińska et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
sclerotia, organic wastes