<abstract xmlns="http://www.w3.org/1999/xhtml">

<p><italic>Fusarium oxysporum</italic> f. sp. <italic>asparagi</italic> is one of the main problems associated with the roots of asparagus plants and inflicting serious losses worldwide. A novel and eco-friendly strategy to reduce pathogen resistance and management of the Fusarium crown and root rot is using chitosan and <italic>Trichoderma harzianum</italic> as a sustainable treatment approach to improve both disease resistance and yields, while also effectively managing the asparagus product. In this study, the effect of chitosan and <italic>Trichoderma harzianum</italic> on growth promotion and control of Fusarium crown and root rot in asparagus plants was investigated. diseased plants from the main production areas of Iran were surveyed. The <italic>in vitro</italic> antifungal properties of chitosan solutions (concentrations of 5, 10, 15 and 20 mg/mL) and <italic>T. harzianum</italic> strain were evaluated by the dual culture method. <italic>T. harzianum and</italic> chitosan solution (20 mg/mL) gave the largest inhibition zone against <italic>F. oxysporum</italic> and were selected for further studies in the greenhouse. Chitosan (20 mg/mL) and <italic>T. harzianum</italic> were applied as seed treatments and they significantly reduced disease incidence by 92% and 73% respectively, compared to the control.</p>
</abstract>

Fusarium oxysporum f. sp. asparagi is one of the main problems associated with the roots of asparagus plants and inflicting serious losses worldwide. A novel and eco-friendly strategy to reduce pathogen resistance and management of the Fusarium crown and root rot is using chitosan and Trichoderma harzianum as a sustainable treatment approach to improve both disease resistance and yields, while also effectively managing the asparagus product. In this study, the effect of chitosan and Trichoderma harzianum on growth promotion and control of Fusarium crown and root rot in asparagus plants was investigated. diseased plants from the main production areas of Iran were surveyed. The in vitro antifungal properties of chitosan solutions (concentrations of 5, 10, 15 and 20 mg/mL) and T. harzianum strain were evaluated by the dual culture method. T. harzianum and chitosan solution (20 mg/mL) gave the largest inhibition zone against F. oxysporum and were selected for further studies in the greenhouse. Chitosan (20 mg/mL) and T. harzianum were applied as seed treatments and they significantly reduced disease incidence by 92% and 73% respectively, compared to the control.

Chitosan and <italic>Trichoderma harzianum</italic> a new Challenge for managing Fusarium crown and root rot in asparagus plant

Agriculture (Pol'nohospodárstvo)

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Chitosan and  a new Challenge for managing Fusarium crown and root rot in asparagus plant

Fusarium oxysporum f. sp. asparagi is one of the main problems associated with the roots of asparagus plants and inflicting serious losses worldwide. A novel...

Chitosan and Trichoderma harzianum a new Challenge for managing Fusarium crown and root rot in asparagus plant

Published Online: Dec 16, 2022

Page range: 75 - 86

Received: Aug 31, 2022

Accepted: Nov 11, 2022

DOI: https://doi.org/10.2478/agri-2022-0007

Keywords
L., chitosan, fusarium crown and root rot, antifungal activity, biological control

© 2022 Kowsar Shirazi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Chitosan and Trichoderma harzianum a new Challenge for managing Fusarium crown and root rot in asparagus plant

Published Online: Dec 16, 2022

Page range: 75 - 86

Received: Aug 31, 2022

Accepted: Nov 11, 2022

DOI: https://doi.org/10.2478/agri-2022-0007

KeywordsL., chitosan, fusarium crown and root rot, antifungal activity, biological control

© 2022 Kowsar Shirazi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
L., chitosan, fusarium crown and root rot, antifungal activity, biological control