Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay

Detalhes bibliográficos
Autor(a) principal: Cazal-Martínez, Cinthia Carolina
Data de Publicação: 2020
Outros Autores: Reyes-Caballero, Yessica Magaliz, Pérez-Estigarribia, Pastor Enmanuel, Arrúa-Alvarenga, Andrea Alejandra, Moura Mendes, Juliana, Kohli, Man Mohan
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/63609
Resumo: Fusarium head blight (FHB), or scab, caused by a Fusarium spp. complex, is an important wheat disease in Paraguay. Among the strategies used to control it, the genetic resistance is considered highly efficient and cost effective. This study aimed to evaluate and compare the effects of F. graminearum on six wheat genotypes, including two comparison varieties, in two seeding dates. The genotypes were artificially inoculated in the spike, at the flowering stage, by injecting a pool of four pathogenic F. graminearum isolates. The FHB development was evaluated by scoring the disease incidence and severity, percentage of diseased spikelets and damaged kernels, as well as using the area under the disease progress curve. Besides the kernel infection, its impact on the development of mycotoxins (deoxynivalenol) and interactions with the genotypes were also evaluated. The results identified an advanced breeding line (Lin 84) with a resistance level to FHB comparable to that of the universally known resistance sources (Sumai 3 and Frontana). The other three genotypes (Caninde 11, Caninde 12 and Caninde 21), in spite of presenting a higher grain yield potential, were evaluated as moderately susceptible to susceptible. These results suggest that, although it is possible to transfer the FHB resistance to a higher agronomic type, combining such resistance with a higher grain yield potential remains an ongoing challenge. KEYWORDS: Fusarium graminearum, Triticum aestivum, genetic resistance, scab.
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spelling Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay Avaliação da resistência de genótipos de trigo à fusariose no ParaguaiFusarium head blight (FHB), or scab, caused by a Fusarium spp. complex, is an important wheat disease in Paraguay. Among the strategies used to control it, the genetic resistance is considered highly efficient and cost effective. This study aimed to evaluate and compare the effects of F. graminearum on six wheat genotypes, including two comparison varieties, in two seeding dates. The genotypes were artificially inoculated in the spike, at the flowering stage, by injecting a pool of four pathogenic F. graminearum isolates. The FHB development was evaluated by scoring the disease incidence and severity, percentage of diseased spikelets and damaged kernels, as well as using the area under the disease progress curve. Besides the kernel infection, its impact on the development of mycotoxins (deoxynivalenol) and interactions with the genotypes were also evaluated. The results identified an advanced breeding line (Lin 84) with a resistance level to FHB comparable to that of the universally known resistance sources (Sumai 3 and Frontana). The other three genotypes (Caninde 11, Caninde 12 and Caninde 21), in spite of presenting a higher grain yield potential, were evaluated as moderately susceptible to susceptible. These results suggest that, although it is possible to transfer the FHB resistance to a higher agronomic type, combining such resistance with a higher grain yield potential remains an ongoing challenge. KEYWORDS: Fusarium graminearum, Triticum aestivum, genetic resistance, scab.A fusariose do trigo, ou giberela, causada por um complexo de Fusarium spp., é uma importante doença no Paraguai. Dentre as estratégias utilizadas para o seu controle, a resistência genética é considerada altamente eficiente e de baixo custo. Objetivou-se avaliar e comparar o efeito de F. graminearum em seis genótipos de trigo, incluindo duas variedades testemunha, em duas datas de semeadura. Os genótipos foram inoculados artificialmente na espiga, por meio da injeção de um pool de quatro isolados patogênicos de F. graminearum, na fase de floração. O desenvolvimento da fusariose foi avaliado pela pontuação da incidência e severidade da doença, porcentagem de espiguetas doentes e grãos danificados, bem como pela área sob a curva de progresso da doença. Além da infecção de grãos, foi determinado o seu impacto no desenvolvimento de micotoxinas (deoxinivalenol) e sua interação com os genótipos. Os resultados identificaram uma linhagem avançada (Lin 84), com nível de resistência à fusariose comparável ao das fontes universalmente conhecidas de resistência (Sumai 3 e Frontana). Os outros três genótipos (Caninde 11, Caninde 12 e Caninde 21), apesar de apresentarem maior potencial de rendimento de grãos, foram avaliados como moderadamente suscetíveis a suscetíveis. Esses resultados sugerem que, embora seja possível transferir a resistência da fusariose do trigo para um tipo agronômico melhorado, combinar a resistência com um maior potencial de rendimento de grãos continua sendo um desafio contínuo. PALAVRAS-CHAVE: Fusarium graminearum, Triticum aestivum, resistência genética, giberela.Escola de Agronomia - Universidade Federal de Goiás2020-10-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/63609Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e63609Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e63609Pesquisa Agropecuária Tropical; v. 50 (2020); e636091983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/63609/35556Copyright (c) 2020 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessCazal-Martínez, Cinthia Carolina Reyes-Caballero, Yessica MagalizPérez-Estigarribia, Pastor EnmanuelArrúa-Alvarenga, Andrea AlejandraMoura Mendes, Juliana Kohli, Man Mohan2020-10-14T11:21:53Zoai:ojs.revistas.ufg.br:article/63609Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:28.538349Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
Avaliação da resistência de genótipos de trigo à fusariose no Paraguai
title Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
spellingShingle Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
Cazal-Martínez, Cinthia Carolina
title_short Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
title_full Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
title_fullStr Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
title_full_unstemmed Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
title_sort Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
author Cazal-Martínez, Cinthia Carolina
author_facet Cazal-Martínez, Cinthia Carolina
Reyes-Caballero, Yessica Magaliz
Pérez-Estigarribia, Pastor Enmanuel
Arrúa-Alvarenga, Andrea Alejandra
Moura Mendes, Juliana
Kohli, Man Mohan
author_role author
author2 Reyes-Caballero, Yessica Magaliz
Pérez-Estigarribia, Pastor Enmanuel
Arrúa-Alvarenga, Andrea Alejandra
Moura Mendes, Juliana
Kohli, Man Mohan
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Cazal-Martínez, Cinthia Carolina
Reyes-Caballero, Yessica Magaliz
Pérez-Estigarribia, Pastor Enmanuel
Arrúa-Alvarenga, Andrea Alejandra
Moura Mendes, Juliana
Kohli, Man Mohan
description Fusarium head blight (FHB), or scab, caused by a Fusarium spp. complex, is an important wheat disease in Paraguay. Among the strategies used to control it, the genetic resistance is considered highly efficient and cost effective. This study aimed to evaluate and compare the effects of F. graminearum on six wheat genotypes, including two comparison varieties, in two seeding dates. The genotypes were artificially inoculated in the spike, at the flowering stage, by injecting a pool of four pathogenic F. graminearum isolates. The FHB development was evaluated by scoring the disease incidence and severity, percentage of diseased spikelets and damaged kernels, as well as using the area under the disease progress curve. Besides the kernel infection, its impact on the development of mycotoxins (deoxynivalenol) and interactions with the genotypes were also evaluated. The results identified an advanced breeding line (Lin 84) with a resistance level to FHB comparable to that of the universally known resistance sources (Sumai 3 and Frontana). The other three genotypes (Caninde 11, Caninde 12 and Caninde 21), in spite of presenting a higher grain yield potential, were evaluated as moderately susceptible to susceptible. These results suggest that, although it is possible to transfer the FHB resistance to a higher agronomic type, combining such resistance with a higher grain yield potential remains an ongoing challenge. KEYWORDS: Fusarium graminearum, Triticum aestivum, genetic resistance, scab.
publishDate 2020
dc.date.none.fl_str_mv 2020-10-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/63609
url https://revistas.ufg.br/pat/article/view/63609
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/63609/35556
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e63609
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e63609
Pesquisa Agropecuária Tropical; v. 50 (2020); e63609
1983-4063
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instname:Universidade Federal de Goiás (UFG)
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instname_str Universidade Federal de Goiás (UFG)
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reponame_str Pesquisa Agropecuária Tropical (Online)
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repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
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