Staff View: Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases

Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases

The addition of organic residues to soil is an option to control some soil-borne diseases. Benzaldehyde and powders of kudzu (Pueraria lobata), velvetbean (Mucuna deeringiana), and pine-bark (Pinus elliottii and P. taeda) added to soil could reduce certain soil-borne diseases. This study evaluated t...

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Main Authors:	Blum, Luiz Eduardo Bassay, Rodríguez-Kábana, Rodrigo
Format:	Artigo
Language:	English
Published:	Sociedade Brasileira de Fitopatologia 2017
Subjects:	Soja - doenças e pragas Tomate - doenças e pragas Resíduos orgânicos Controle biológico Solos supressivos
Online Access:	http://repositorio.unb.br/handle/10482/26167 https://dx.doi.org/10.1590/S0100-41582004000100010
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spelling	ir-10482-261672021-12-20T20:17:56Z Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases Efeitos de resíduos orgânicos no solo na germinação de esclerócios, no crescimento micelial e na ocorrência de doenças induzidas por Sclerotium rolfsii Blum, Luiz Eduardo Bassay Rodríguez-Kábana, Rodrigo Soja - doenças e pragas Tomate - doenças e pragas Resíduos orgânicos Controle biológico Solos supressivos The addition of organic residues to soil is an option to control some soil-borne diseases. Benzaldehyde and powders of kudzu (Pueraria lobata), velvetbean (Mucuna deeringiana), and pine-bark (Pinus elliottii and P. taeda) added to soil could reduce certain soil-borne diseases. This study evaluated the effects of benzaldehyde and the dried powders of kudzu, velvetbean, and pine-bark as soil amendments on germination and formation of sclerotia, on mycelial growth of Sclerotium rolfsii, on plant survival, and disease incidence. The data showed that high amounts of benzaldehyde (0.4 ml kg-1 of soil) and velvetbean (100 g kg-1) inhibited S. rolfsii mycelial growth and sclerotium germination. However, low amounts of benzaldehyde (0.1 ml kg-1), kudzu (25 g kg-1), and pine-bark (25 g kg-1) stimulated mycelial growth and sclerotium germination. Kudzu (25-100 g kg-1) and velvetbean (25-100 g kg-1) inhibited the formation of sclerotia. Nevertheless, benzaldehyde at 0.2 and 0.4 ml kg-1 stimulated the formation of sclerotia. Kudzu (50 and 100 g kg-1) and pine-bark (50 g kg-1) favored the colonization of sclerotia by Trichoderma sp. The numbers of soybean (Glycine max) plants were higher and diseased plants were lower than the non-amend soil in the following treatments: kudzu (50 and 100 g kg-1), velvetbean (50 and 100 g kg-1), and pine-bark (50 g kg-1). Disease severity on tomato (Lycopersicon esculentum) plants was low in soil treated with kudzu or velvetbean (30 and 35 g kg-1) and pine-bark (35 g kg-1). Dried powders of kudzu, velvetbean, or pine-bark added to soil can reduce disease by reducing pathogen inoculum. The addition of organic residues to soil is an option to control some soil-borne diseases. Benzaldehyde and powders of kudzu (Pueraria lobata), velvetbean (Mucuna deeringiana), and pine-bark (Pinus elliottii and P. taeda) added to soil could reduce certain soil-borne diseases. This study evaluated the effects of benzaldehyde and the dried powders of kudzu, velvetbean, and pine-bark as soil amendments on germination and formation of sclerotia, on mycelial growth of Sclerotium rolfsii, on plant survival, and disease incidence. The data showed that high amounts of benzaldehyde (0.4 ml kg-1 of soil) and velvetbean (100 g kg-1) inhibited S. rolfsii mycelial growth and sclerotium germination. However, low amounts of benzaldehyde (0.1 ml kg-1), kudzu (25 g kg-1), and pine-bark (25 g kg-1) stimulated mycelial growth and sclerotium germination. Kudzu (25-100 g kg-1) and velvetbean (25-100 g kg-1) inhibited the formation of sclerotia. Nevertheless, benzaldehyde at 0.2 and 0.4 ml kg-1 stimulated the formation of sclerotia. Kudzu (50 and 100 g kg-1) and pine-bark (50 g kg-1) favored the colonization of sclerotia by Trichoderma sp. The numbers of soybean (Glycine max) plants were higher and diseased plants were lower than the non-amend soil in the following treatments: kudzu (50 and 100 g kg-1), velvetbean (50 and 100 g kg-1), and pine-bark (50 g kg-1). Disease severity on tomato (Lycopersicon esculentum) plants was low in soil treated with kudzu or velvetbean (30 and 35 g kg-1) and pine-bark (35 g kg-1). Dried powders of kudzu, velvetbean, or pine-bark added to soil can reduce disease by reducing pathogen inoculum. 2017-12-07T04:39:15Z 2017-12-07T04:39:15Z 2004-02 Artigo BLUM, Luiz E. B.; RODRÍGUEZ-KÁBANA, Rodrígo. Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases. Fitopatologia Brasileira, v. 29, n. 1, p. 66-74, jan./fev., 2004. DOI: https://doi.org/10.1590/S0100-41582004000100010. Disponível: https://www.scielo.br/j/fb/a/56r7twNB3qc6t78Db5Jsbtp/?lang=en#. Acesso em: 10 set. 2021. http://repositorio.unb.br/handle/10482/26167 https://dx.doi.org/10.1590/S0100-41582004000100010 en Acesso Aberto Fitopatologia Brasileira - This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY NC). Fonte: https://www.scielo.br/j/fb/a/56r7twNB3qc6t78Db5Jsbtp/?lang=en#. Acesso em: 10 set. 2021. application/pdf Sociedade Brasileira de Fitopatologia
institution	REPOSITORIO UNB
collection	REPOSITORIO UNB
language	English
topic	Soja - doenças e pragas Tomate - doenças e pragas Resíduos orgânicos Controle biológico Solos supressivos
spellingShingle	Soja - doenças e pragas Tomate - doenças e pragas Resíduos orgânicos Controle biológico Solos supressivos Blum, Luiz Eduardo Bassay Rodríguez-Kábana, Rodrigo Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases
description	The addition of organic residues to soil is an option to control some soil-borne diseases. Benzaldehyde and powders of kudzu (Pueraria lobata), velvetbean (Mucuna deeringiana), and pine-bark (Pinus elliottii and P. taeda) added to soil could reduce certain soil-borne diseases. This study evaluated the effects of benzaldehyde and the dried powders of kudzu, velvetbean, and pine-bark as soil amendments on germination and formation of sclerotia, on mycelial growth of Sclerotium rolfsii, on plant survival, and disease incidence. The data showed that high amounts of benzaldehyde (0.4 ml kg-1 of soil) and velvetbean (100 g kg-1) inhibited S. rolfsii mycelial growth and sclerotium germination. However, low amounts of benzaldehyde (0.1 ml kg-1), kudzu (25 g kg-1), and pine-bark (25 g kg-1) stimulated mycelial growth and sclerotium germination. Kudzu (25-100 g kg-1) and velvetbean (25-100 g kg-1) inhibited the formation of sclerotia. Nevertheless, benzaldehyde at 0.2 and 0.4 ml kg-1 stimulated the formation of sclerotia. Kudzu (50 and 100 g kg-1) and pine-bark (50 g kg-1) favored the colonization of sclerotia by Trichoderma sp. The numbers of soybean (Glycine max) plants were higher and diseased plants were lower than the non-amend soil in the following treatments: kudzu (50 and 100 g kg-1), velvetbean (50 and 100 g kg-1), and pine-bark (50 g kg-1). Disease severity on tomato (Lycopersicon esculentum) plants was low in soil treated with kudzu or velvetbean (30 and 35 g kg-1) and pine-bark (35 g kg-1). Dried powders of kudzu, velvetbean, or pine-bark added to soil can reduce disease by reducing pathogen inoculum.
format	Artigo
author	Blum, Luiz Eduardo Bassay Rodríguez-Kábana, Rodrigo
author_sort	Blum, Luiz Eduardo Bassay
title	Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases
title_short	Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases
title_full	Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases
title_fullStr	Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases
title_full_unstemmed	Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases
title_sort	effect of organic amendments on sclerotial germination, mycelial growth, and sclerotium rolfsii-induced diseases
publisher	Sociedade Brasileira de Fitopatologia
publishDate	2017
url	http://repositorio.unb.br/handle/10482/26167 https://dx.doi.org/10.1590/S0100-41582004000100010
_version_	1721216664915148800
score	13.657419

Effect of organic amendments on sclerotial germination, mycelial growth, and Sclerotium rolfsii-induced diseases

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