Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera

Detalhes bibliográficos
Autor(a) principal: Coelho, Luísa
Data de Publicação: 2020
Outros Autores: Reis, Mário, Guerrero, Carlos, Dionísio, Lídia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.1/16597
Resumo: Turfgrasses are affected by fungal diseases and their chemical control is currently limited by the legislation and the impact on the environment of fungicides and the possible development of fungicide resistance. This study was carried out during three years to evaluate the antagonistic effect of the microbiota associated with organic composts. Two composts were produced from agro-industrial residues, P1 and P2. Fungi from both composts were isolated and identified and their antagonistic capacity was evaluated, in vivo and in vitro tests, against Sclerotium rolfsii Sacc, Clarireedia gen. nov. (formerly Sclerotinia homoeocarpa (Benn, 1937)) and Rhizoctonia solani (Kuhn 1858). In vivo tests were run for Agrostis stolonifera L., seeded in P1, P2 and a commercial peat (T) based substrate (Hansa Torf Floragard, Germany), in 100 mL pots. A part of each substrate was submitted to a thermic treatment, obtained Pt, P1t and P2t substrates. Antagonistic properties of the P, P1 and P2 were compared with substrates with thermic treatment. In the in vitro tests Trichoderma atroviride and Trichoderma asperellum showed higher growth than the tested pathogenic agents. T. atroviride showed the best antagonistic capacity, with inhibition percentages of 67.5%, 63.8% and 62.5% against Clarireedia spp., S. rolfsii and R. solani, respectively. In the in vivo tests, the efficacy and biological control index (BCI) were higher in P1 and P2 than in P. BCI ranged from 1.66 (N) to 39.03 (P2) on S. rolfsii control, from 1.38 (Pt) to 14.66 (P1) on Clarireedia spp. control, and from 1.87 (Pt) to 21.45 (P1) for R. solani control. Compost P2 showed the highest suppressive effect on the studied soil diseases in turfgrass, which did not occur when its microbiota was eliminated by thermic treatment.
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spelling Use of organic composts to suppress bentgrass diseases in Agrostis stoloniferaBentgrassBest management practicesNitrogenPlant diseaseTurfgrass managementTurfgrasses are affected by fungal diseases and their chemical control is currently limited by the legislation and the impact on the environment of fungicides and the possible development of fungicide resistance. This study was carried out during three years to evaluate the antagonistic effect of the microbiota associated with organic composts. Two composts were produced from agro-industrial residues, P1 and P2. Fungi from both composts were isolated and identified and their antagonistic capacity was evaluated, in vivo and in vitro tests, against Sclerotium rolfsii Sacc, Clarireedia gen. nov. (formerly Sclerotinia homoeocarpa (Benn, 1937)) and Rhizoctonia solani (Kuhn 1858). In vivo tests were run for Agrostis stolonifera L., seeded in P1, P2 and a commercial peat (T) based substrate (Hansa Torf Floragard, Germany), in 100 mL pots. A part of each substrate was submitted to a thermic treatment, obtained Pt, P1t and P2t substrates. Antagonistic properties of the P, P1 and P2 were compared with substrates with thermic treatment. In the in vitro tests Trichoderma atroviride and Trichoderma asperellum showed higher growth than the tested pathogenic agents. T. atroviride showed the best antagonistic capacity, with inhibition percentages of 67.5%, 63.8% and 62.5% against Clarireedia spp., S. rolfsii and R. solani, respectively. In the in vivo tests, the efficacy and biological control index (BCI) were higher in P1 and P2 than in P. BCI ranged from 1.66 (N) to 39.03 (P2) on S. rolfsii control, from 1.38 (Pt) to 14.66 (P1) on Clarireedia spp. control, and from 1.87 (Pt) to 21.45 (P1) for R. solani control. Compost P2 showed the highest suppressive effect on the studied soil diseases in turfgrass, which did not occur when its microbiota was eliminated by thermic treatment.Academic PressSapientiaCoelho, LuísaReis, MárioGuerrero, CarlosDionísio, Lídia2021-06-24T11:36:00Z2020-022020-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/16597eng1049-964410.1016/j.biocontrol.2019.104154info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-11-29T10:44:22Zoai:sapientia.ualg.pt:10400.1/16597Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-29T10:44:22Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera
title Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera
spellingShingle Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera
Coelho, Luísa
Bentgrass
Best management practices
Nitrogen
Plant disease
Turfgrass management
title_short Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera
title_full Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera
title_fullStr Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera
title_full_unstemmed Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera
title_sort Use of organic composts to suppress bentgrass diseases in Agrostis stolonifera
author Coelho, Luísa
author_facet Coelho, Luísa
Reis, Mário
Guerrero, Carlos
Dionísio, Lídia
author_role author
author2 Reis, Mário
Guerrero, Carlos
Dionísio, Lídia
author2_role author
author
author
dc.contributor.none.fl_str_mv Sapientia
dc.contributor.author.fl_str_mv Coelho, Luísa
Reis, Mário
Guerrero, Carlos
Dionísio, Lídia
dc.subject.por.fl_str_mv Bentgrass
Best management practices
Nitrogen
Plant disease
Turfgrass management
topic Bentgrass
Best management practices
Nitrogen
Plant disease
Turfgrass management
description Turfgrasses are affected by fungal diseases and their chemical control is currently limited by the legislation and the impact on the environment of fungicides and the possible development of fungicide resistance. This study was carried out during three years to evaluate the antagonistic effect of the microbiota associated with organic composts. Two composts were produced from agro-industrial residues, P1 and P2. Fungi from both composts were isolated and identified and their antagonistic capacity was evaluated, in vivo and in vitro tests, against Sclerotium rolfsii Sacc, Clarireedia gen. nov. (formerly Sclerotinia homoeocarpa (Benn, 1937)) and Rhizoctonia solani (Kuhn 1858). In vivo tests were run for Agrostis stolonifera L., seeded in P1, P2 and a commercial peat (T) based substrate (Hansa Torf Floragard, Germany), in 100 mL pots. A part of each substrate was submitted to a thermic treatment, obtained Pt, P1t and P2t substrates. Antagonistic properties of the P, P1 and P2 were compared with substrates with thermic treatment. In the in vitro tests Trichoderma atroviride and Trichoderma asperellum showed higher growth than the tested pathogenic agents. T. atroviride showed the best antagonistic capacity, with inhibition percentages of 67.5%, 63.8% and 62.5% against Clarireedia spp., S. rolfsii and R. solani, respectively. In the in vivo tests, the efficacy and biological control index (BCI) were higher in P1 and P2 than in P. BCI ranged from 1.66 (N) to 39.03 (P2) on S. rolfsii control, from 1.38 (Pt) to 14.66 (P1) on Clarireedia spp. control, and from 1.87 (Pt) to 21.45 (P1) for R. solani control. Compost P2 showed the highest suppressive effect on the studied soil diseases in turfgrass, which did not occur when its microbiota was eliminated by thermic treatment.
publishDate 2020
dc.date.none.fl_str_mv 2020-02
2020-02-01T00:00:00Z
2021-06-24T11:36:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.1/16597
url http://hdl.handle.net/10400.1/16597
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1049-9644
10.1016/j.biocontrol.2019.104154
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Academic Press
publisher.none.fl_str_mv Academic Press
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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