Field screening of Paraguayan soybean germplasm for resistance to charcoal rot
The aim of this work was to identify genetic resistance to charcoal rot (Macrophomina phaseolina) in soybean germplasm from the National Breeding Program of the Instituto Paraguayo de Tecnología Agraria (Paraguayan Institute of Agricultural Technology). During two seasons, 51 commercial and experime...
| Main Authors: | , , , , , , , |
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| Format: | Online |
| Language: | eng |
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Facultad de Ciencias Agropecuarias
2022
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| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/36896 |
| _version_ | 1811172648490631168 |
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| author | Fernández-Gamarra, Marta Mohan-Kohli, Man Scholz-Drodowski , Ruth Vargas, Maria José Agüero, Rossana Riveros , Marcelo Sanabria-Velázquez, Andrés Enciso Maldonado, Guillermo Enciso Maldonado, Guillermo |
| author_facet | Fernández-Gamarra, Marta Mohan-Kohli, Man Scholz-Drodowski , Ruth Vargas, Maria José Agüero, Rossana Riveros , Marcelo Sanabria-Velázquez, Andrés Enciso Maldonado, Guillermo Enciso Maldonado, Guillermo |
| author_sort | Fernández-Gamarra, Marta |
| collection | Portal de Revistas |
| description | The aim of this work was to identify genetic resistance to charcoal rot (Macrophomina phaseolina) in soybean germplasm from the National Breeding Program of the Instituto Paraguayo de Tecnología Agraria (Paraguayan Institute of Agricultural Technology). During two seasons, 51 commercial and experimental lines from the local breeding program were field evaluated in Itapúa-Paraguay. The lines were planted in single rows previously infested, using a completely randomized block design with four repetitions. The charcoal rot severity was evaluated in the stems and roots at the physiological maturity stage. On a Root and Stem Severity index scale of 1-5, the median severity for the 34 early maturity genotypes was 1.5 and 1 in 2017/2018 and 2018/2019, respectively. Nine genotypes (AG-6525 xi, SP14041, SP14222, SP14583, SP15013, SP15133, SP15218, SP16020, and SPB-14146) were rated as resistant (1) in both evaluations. The median severity for the 15 semi-early genotypes was 2 and 1 in 2017/2018 and 2018/2019, respectively. This study allowed us to identify previously unreported sources of resistance to charcoal rot in maturity group IV, V and VI. We believe that germplasm screening under field conditions is a viable alternative to identify breeding lines which are less sensitive to charcoal rot. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-36896 |
| institution | Universidad Nacional de Cordoba |
| language | eng |
| publishDate | 2022 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-368962023-11-30T18:44:58Z Field screening of Paraguayan soybean germplasm for resistance to charcoal rot Identificación en campo de germoplasma de soja paraguayo resistente a la pudrición carbonosa Fernández-Gamarra, Marta Mohan-Kohli, Man Scholz-Drodowski , Ruth Vargas, Maria José Agüero, Rossana Riveros , Marcelo Sanabria-Velázquez, Andrés Enciso Maldonado, Guillermo Enciso Maldonado, Guillermo Macrophomina phaseolina plant genetic resources genetic resistance soilborne diseases Macrophomina phaseolina recursos fitogenéticos resistencia genética patógenos de suelo The aim of this work was to identify genetic resistance to charcoal rot (Macrophomina phaseolina) in soybean germplasm from the National Breeding Program of the Instituto Paraguayo de Tecnología Agraria (Paraguayan Institute of Agricultural Technology). During two seasons, 51 commercial and experimental lines from the local breeding program were field evaluated in Itapúa-Paraguay. The lines were planted in single rows previously infested, using a completely randomized block design with four repetitions. The charcoal rot severity was evaluated in the stems and roots at the physiological maturity stage. On a Root and Stem Severity index scale of 1-5, the median severity for the 34 early maturity genotypes was 1.5 and 1 in 2017/2018 and 2018/2019, respectively. Nine genotypes (AG-6525 xi, SP14041, SP14222, SP14583, SP15013, SP15133, SP15218, SP16020, and SPB-14146) were rated as resistant (1) in both evaluations. The median severity for the 15 semi-early genotypes was 2 and 1 in 2017/2018 and 2018/2019, respectively. This study allowed us to identify previously unreported sources of resistance to charcoal rot in maturity group IV, V and VI. We believe that germplasm screening under field conditions is a viable alternative to identify breeding lines which are less sensitive to charcoal rot. El objetivo de este trabajo fue identificar resistencia a la pudrición carbonosa (Macrophomina phaseolina) en germoplasma de soja del Programa Nacional de Mejoramiento del Instituto Paraguayo de Tecnología Agropecuaria (IPTA). Durante dos temporadas, se evaluaron 51 líneas comerciales y experimentales del programa de mejoramiento local en Itapúa-Paraguay. Las líneas se sembraron en hileras individuales previamente infestadas, utilizando un diseño de bloques completamente al azar con cuatro repeticiones. Se evaluó la severidad de la pudrición carbonosa en los tallos y raíces en la etapa de madurez fisiológica. En una escala de índice de severidad de raíz y tallo de 1 a 5, la severidad media de los 34 genotipos de madurez temprana fue de 1,5 y 1 en 2017/2018 y 2018/2019, respectivamente. Nueve genotipos (AG-6525 xi, SP14041, SP14222, SP14583, SP15013, SP15133, SP15218, SP16020 y SPB-14146) fueron resistentes (1) en ambos periodos. La severidad media de los 15 genotipos semi-precoces fue de 2 y 1 en 2017/2018 y 2018/2019, respectivamente. Se identificaron fuentes de resistencia a la pudrición carbonosa no reportadas previamente en los grupos de madurez IV, V y VI. El cribado de germoplasma en el campo es una alternativa viable para identificar líneas menos sensibles a la pudrición carbonosa. Facultad de Ciencias Agropecuarias 2022-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/agris/article/view/36896 10.31047/1668.298x.v39.n2.36896 AgriScientia; Vol. 39 No. 2 (2022); 75-83 AgriScientia; Vol. 39 Núm. 2 (2022); 75-83 1668-298X 10.31047/1668.298x.v39.n2 eng https://revistas.unc.edu.ar/index.php/agris/article/view/36896/40246 https://revistas.unc.edu.ar/index.php/agris/article/view/36896/41191 Derechos de autor 2022 Marta Fernández-Gamarra, Man Mohan-Kohli, Ruth Scholz-Drodowski , Maria José Vargas, Rossana Agüero, Marcelo Riveros , Andrés Sanabria-Velázquez, Guillermo Enciso Maldonado https://creativecommons.org/licenses/by-sa/4.0 |
| spellingShingle | Macrophomina phaseolina plant genetic resources genetic resistance soilborne diseases Macrophomina phaseolina recursos fitogenéticos resistencia genética patógenos de suelo Fernández-Gamarra, Marta Mohan-Kohli, Man Scholz-Drodowski , Ruth Vargas, Maria José Agüero, Rossana Riveros , Marcelo Sanabria-Velázquez, Andrés Enciso Maldonado, Guillermo Enciso Maldonado, Guillermo Field screening of Paraguayan soybean germplasm for resistance to charcoal rot |
| title | Field screening of Paraguayan soybean germplasm for resistance to charcoal rot |
| title_alt | Identificación en campo de germoplasma de soja paraguayo resistente a la pudrición carbonosa |
| title_full | Field screening of Paraguayan soybean germplasm for resistance to charcoal rot |
| title_fullStr | Field screening of Paraguayan soybean germplasm for resistance to charcoal rot |
| title_full_unstemmed | Field screening of Paraguayan soybean germplasm for resistance to charcoal rot |
| title_short | Field screening of Paraguayan soybean germplasm for resistance to charcoal rot |
| title_sort | field screening of paraguayan soybean germplasm for resistance to charcoal rot |
| topic | Macrophomina phaseolina plant genetic resources genetic resistance soilborne diseases Macrophomina phaseolina recursos fitogenéticos resistencia genética patógenos de suelo |
| topic_facet | Macrophomina phaseolina plant genetic resources genetic resistance soilborne diseases Macrophomina phaseolina recursos fitogenéticos resistencia genética patógenos de suelo |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/36896 |
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