Response of maize hybrids to corn stuntdisease caused by Spiroplasma kunkelii in the Argentine Northwest (NOA) – 2023-2024 growing season

Corn stunt disease (CS) is caused by Spiroplasma kunkelii, Maize rayado fino virus (MRFV), Maize bushy stunt phytoplasma (MBSP) and Maize striate mosaic virus (MSMV) and transmitted by Dalbulus maidis. During 2023–2024, it severely affected corn production in Argentina, with losses of 20 %. Fourteen...

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Autores principales: Araujo, Leonardo, Druetta, Marcelo, Torrico, Karina, Giménez Pecci, María Paz, Barontini, Javier
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Facultad de Ciencias Agropecuarias 2025
Materias:
Dalbulus maidis
mollicute
corn leafhopper
germplasm
chicharrita del maíz
germoplasma
Acceso en línea:https://revistas.unc.edu.ar/index.php/agris/article/view/46410
Aporte de:
AgriScientia de Universidad Nacional de Córdoba
id I10-R352-article-46410
record_format ojs
spelling I10-R352-article-464102025-09-01T20:07:17Z Response of maize hybrids to corn stuntdisease caused by Spiroplasma kunkelii in the Argentine Northwest (NOA) – 2023-2024 growing season Comportamiento de híbridos de maíz frente al achaparramiento del maíz causado por Spiroplasma kunkelii en la región del noroeste argentino (NOA) – Campaña 2023-2024 Araujo, Leonardo Druetta, Marcelo Torrico, Karina Giménez Pecci, María Paz Barontini, Javier Dalbulus maidis mollicute corn leafhopper germplasm Dalbulus maidis mollicute chicharrita del maíz germoplasma Corn stunt disease (CS) is caused by Spiroplasma kunkelii, Maize rayado fino virus (MRFV), Maize bushy stunt phytoplasma (MBSP) and Maize striate mosaic virus (MSMV) and transmitted by Dalbulus maidis. During 2023–2024, it severely affected corn production in Argentina, with losses of 20 %. Fourteencommercial maize hybrids were evaluated in locations across the Argentine Northwest (NOA) to determine their performance, incidence and severity in response to the disease. The results showed incidence values ranging from 8 % to 100 %, with severity varying among the hybrids. The performance was above average in SYN505VIP3, DK7210PRO4, DK7220PRO4, P2297PWUE,and PAN5175PWU. SYN505VIP3 showed mild symptoms and low severity. Although DK7210PRO4, DK7220PRO4, P2297PWUE, and PAN5175PWU had more severe symptoms, their performance was not significantly impacted, though there was some variability in P2297PWUE and PAN5175PWU. Incontrast, BRV8380PWE, DK7272VT3P, BRV8421PWUE, ZEFIRPWU, andNEXT22.6PWUE, with similar severity, had below-average performance, with particularly high severity in NEXT22.6PWUE and ZEFIRPWU. Regression analysis revealed that the severity index explains 72 % of the variability inperformance, with each additional unit of severity associated with an average reduction of 15.96 kg/ha in yield. This underscores the importance of selecting suitable hybrids to mitigate the impact of CS. El achaparramiento del maíz es causado por Spiroplasma kunkelii, el virus del rayado fino (MRFV), el fitoplasma del maíz (MBSP) y el virus del mosaico estriado (MSMV) y transmitido por Dalbulus maidis. Durante 2023–2024, afectógravemente la producción maicera de Argentina, con pérdidas del 20 %. Se evaluaron catorce híbridos comerciales en el noroeste argentino y se determinó rendimiento, incidencia y severidad frente a la enfermedad. Se encontraron valores de incidencia entre el 8 % y el 100 %, con severidad variable entre híbridos. SYN505VIP3, DK7210PRO4, DK7220PRO4, P2297PWUE y PAN5175PWU tuvieron un rendimiento superior al promedio. SYN505VIP3 mostró síntomas leves y baja severidad. Aunque DK7210PRO4, DK7220PRO4,P2297PWUE y PAN5175PWU tuvieron síntomas más severos, su rendimiento no se vio muy afectado, si bien P2297PWUE y PAN5175PWU mostraron variabilidad. En contraste, BRV8380PWE, DK7272VT3P, BRV8421PWUE,ZEFIRPWU y NEXT22.6PWUE, con severidad similar, tuvieron rendimiento inferior al promedio, especialmente NEXT22.6PWUE y ZEFIRPWU, con mayor severidad. El análisis de regresión reveló que el índice de severidad explica el 72 % de la variabilidad en el rendimiento, con cada unidad adicional deseveridad asociada a una reducción promedio de 15,96 kg/ha. Esto subraya la importancia de seleccionar híbridos adecuados para mitigar el impacto del achaparramiento. Facultad de Ciencias Agropecuarias 2025-07-22 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/46410 10.31047/1668.298x.v42.n1.46410 AgriScientia; Vol. 42 No. 1 (2025); 1-7 AgriScientia; Vol. 42 Núm. 1 (2025); 1-7 1668-298X 10.31047/1668.298x.v42.n1 eng https://revistas.unc.edu.ar/index.php/agris/article/view/46410/49789 Derechos de autor 2025 Leonardo Araujo, Marcelo Druetta, Karina Torrico, María Paz Giménez Pecci, Javier Barontini https://creativecommons.org/licenses/by-sa/4.0
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-352
container_title_str AgriScientia
language Inglés
format Artículo revista
topic Dalbulus maidis
mollicute
corn leafhopper
germplasm
Dalbulus maidis
mollicute
chicharrita del maíz
germoplasma
spellingShingle Dalbulus maidis
mollicute
corn leafhopper
germplasm
Dalbulus maidis
mollicute
chicharrita del maíz
germoplasma
Araujo, Leonardo
Druetta, Marcelo
Torrico, Karina
Giménez Pecci, María Paz
Barontini, Javier
Response of maize hybrids to corn stuntdisease caused by Spiroplasma kunkelii in the Argentine Northwest (NOA) – 2023-2024 growing season
topic_facet Dalbulus maidis
mollicute
corn leafhopper
germplasm
Dalbulus maidis
mollicute
chicharrita del maíz
germoplasma
author Araujo, Leonardo
Druetta, Marcelo
Torrico, Karina
Giménez Pecci, María Paz
Barontini, Javier
author_facet Araujo, Leonardo
Druetta, Marcelo
Torrico, Karina
Giménez Pecci, María Paz
Barontini, Javier
author_sort Araujo, Leonardo
title Response of maize hybrids to corn stuntdisease caused by Spiroplasma kunkelii in the Argentine Northwest (NOA) – 2023-2024 growing season
title_short Response of maize hybrids to corn stuntdisease caused by Spiroplasma kunkelii in the Argentine Northwest (NOA) – 2023-2024 growing season
title_full Response of maize hybrids to corn stuntdisease caused by Spiroplasma kunkelii in the Argentine Northwest (NOA) – 2023-2024 growing season
title_fullStr Response of maize hybrids to corn stuntdisease caused by Spiroplasma kunkelii in the Argentine Northwest (NOA) – 2023-2024 growing season
title_full_unstemmed Response of maize hybrids to corn stuntdisease caused by Spiroplasma kunkelii in the Argentine Northwest (NOA) – 2023-2024 growing season
title_sort response of maize hybrids to corn stuntdisease caused by spiroplasma kunkelii in the argentine northwest (noa) – 2023-2024 growing season
description Corn stunt disease (CS) is caused by Spiroplasma kunkelii, Maize rayado fino virus (MRFV), Maize bushy stunt phytoplasma (MBSP) and Maize striate mosaic virus (MSMV) and transmitted by Dalbulus maidis. During 2023–2024, it severely affected corn production in Argentina, with losses of 20 %. Fourteencommercial maize hybrids were evaluated in locations across the Argentine Northwest (NOA) to determine their performance, incidence and severity in response to the disease. The results showed incidence values ranging from 8 % to 100 %, with severity varying among the hybrids. The performance was above average in SYN505VIP3, DK7210PRO4, DK7220PRO4, P2297PWUE,and PAN5175PWU. SYN505VIP3 showed mild symptoms and low severity. Although DK7210PRO4, DK7220PRO4, P2297PWUE, and PAN5175PWU had more severe symptoms, their performance was not significantly impacted, though there was some variability in P2297PWUE and PAN5175PWU. Incontrast, BRV8380PWE, DK7272VT3P, BRV8421PWUE, ZEFIRPWU, andNEXT22.6PWUE, with similar severity, had below-average performance, with particularly high severity in NEXT22.6PWUE and ZEFIRPWU. Regression analysis revealed that the severity index explains 72 % of the variability inperformance, with each additional unit of severity associated with an average reduction of 15.96 kg/ha in yield. This underscores the importance of selecting suitable hybrids to mitigate the impact of CS.
publisher Facultad de Ciencias Agropecuarias
publishDate 2025
url https://revistas.unc.edu.ar/index.php/agris/article/view/46410
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first_indexed 2025-08-10T05:28:59Z
last_indexed 2025-09-10T05:14:08Z
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