Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/77920

TítuloEvaluation of the potential of agro-industrial waste-based composts to control Botrytis gray mold and soilborne fungal diseases in lettuce
Autor(es)Santos, Cátia
Monte, Joana
Vilaça, Natália
Fonseca, João
Trindade, Henrique
Cortez, Isabel
Goufo, Piebiep
Palavras-chaveDisease suppressive soils
Biological control
Lignocellulosic composts
Macrodilution assay
Soilborne pathogens
Agro-industrial wastes
Botrytis cinerea
Disease severity and incidence
Data10-Dez-2021
EditoraMultidisciplinary Digital Publishing Institute (MDPI)
RevistaProcesses
CitaçãoSantos, C.; Monte, J.; Vilaça, N.; Fonseca, J.; Trindade, H.; Cortez, I.; Goufo, P. Evaluation of the Potential of Agro-Industrial Waste-Based Composts to Control Botrytis Gray Mold and Soilborne Fungal Diseases in Lettuce. Processes 2021, 9, 2231. https://doi.org/10.3390/pr9122231
Resumo(s)Composts are widely used in horticulture as organic amendments to improve the properties of soils. Composts have also been reported to enhance the disease suppressive potential of soils and, therefore, could be used as a strategy for managing plant diseases. The aim of this study was to test the ability of soils amended with four different agro-industrial waste-based composts (chestnut peels and shells, spent coffee grounds, grape marc, and olive leaves) to inhibit the growth and activity of <i>Botrytis cinerea</i> and several soilborne pathogens. First, the capacity of aqueous compost extracts to inhibit the growth of <i>Botrytis cinerea</i> and five soilborne fungi was evaluated in vitro using a broth macrodilution method. Second, lettuce plants were grown on soils amended with composts and inoculated either with <i>B. cinerea</i> or the soilborne fungus <i>Fusarium oxysporum</i> Schlechtendahl isolated from lamb’s lettuce. The determination of minimal inhibitory concentrations indicated that none of the composts inhibited the mycelium growth of the selected fungal pathogens. However, the pathogens did not cause any damage on plants grown on the chestnut- and olive-based composts. Lettuce yields were also highest for plants grown with composts made from chestnut and olive, irrespective of the amount of compost incorporated into soils (5% or 10%, weight basis). The grape-based compost also exhibited a fertilization effect, although the effect was associated with increased Fusarium wilt severity. Both N immobilization and symbiosis with the compost’s microflora were used to explain the pathogenicity of <i>F. oxysporum</i> Schlechtendahl in response to amendment with composts made from grape and coffee wastes. The beneficial effects of the chestnut- and olive-based composts reported in this study could be exploited in strategies aimed at reducing reliance on synthetic pesticides for the control of fungi in lettuce cultivation.
TipoArtigo
URIhttps://hdl.handle.net/1822/77920
DOI10.3390/pr9122231
ISSN2227-9717
Versão da editorahttps://www.mdpi.com/2227-9717/9/12/2231
Arbitragem científicayes
AcessoAcesso aberto
Aparece nas coleções:BUM - MDPI

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