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The potential of alternative seed treatments to control anthracnose disease in white lupin

Alkemade, Joris; Arncken, Christine; Hirschvogel, Christa; Messmer, Monika; Leska, Agata; Voegele, Ralf T.; Finckh, Maria R.; Kölliker, Roland; Groot, Steven P.C. and Hohmann, Pierre (2022) The potential of alternative seed treatments to control anthracnose disease in white lupin. Crop Protection, 158, p. 106009.

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Document available online at: https://doi.org/10.1016/j.cropro.2022.106009


White lupin (Lupinus albus L.) is a promising crop to meet the rising global demand for plant-based protein. The seed-borne pathogen Colletotrichum lupini, however, threatens lupin cultivation worldwide. Seed dressings using synthetic fungicides were shown effective to reduce infection levels, but their negative environmental impact and exclusion from organic production calls for more sustainable solutions. In this study, a total of eleven different alternative seed treatments were tested in field trials in Switzerland between 2018 and 2021. Treatment types consisted of: hot water, steam, electron, long-term storage, elevated partial pressure of oxygen (EPPO), vinegar, plant extracts and biological control agents (BCAs). The BCAs were tested for potential antagonistic activity against C. lupini during white lupin infection under controlled conditions prior to field trials. Long-term storage and vinegar treatments successfully reduced disease incidence and increased yield to levels similar to those observed for certified seeds, without significantly affecting germination rate. Although promising, effectiveness of these treatments needs further validation. Four BCAs showed significant disease reductions under controlled conditions. Besides lowering disease severity, two BCAs also reduced C. lupini DNA in stem tissue. These reductions, however, were not observed in the field, highlighting the importance of field validations. The treatments identified in this study provide a solid basis for the development of sustainable and effective seed protection strategies in white lupin to control C. lupini successfully.

EPrint Type:Journal paper
Keywords:Colletotrichum lupini, Long-term storage, Abacus, FiBL20064
Agrovoc keywords:
biological control
seed dressing
Lupinus albus
Subjects: Crop husbandry > Production systems > Cereals, pulses and oilseeds
Crop husbandry > Crop health, quality, protection
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Crops > Arable crops
Germany > University of Kassel > Department of Ecological Plant Protection
Germany > University of Hohenheim > Institute for Phytomedicine
Spain > IRTA (Instituto de Investigación y Tecnología Agroalimentarias de Cataluña)
Netherlands > Wageningen University & Research (WUR) > Plant Research International PRI
Switzerland > Other organizations
Horizon Europe or H2020 Grant Agreement Number:727230
Deposited By: Caminada, Lena
ID Code:44727
Deposited On:30 Nov 2022 07:46
Last Modified:02 Dec 2022 08:46
Document Language:English
Refereed:Peer-reviewed and accepted

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