Evaluation of wheat genotypes resistance to Fusarium head blight in Paraguay
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
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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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 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
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1799874820561698816 |