Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method

The cultivation of maize is important in the Argentine subtropics. The Subtropical Corn Improvement Programs of the IIACS-CIAP-INTA, seeks the improvement of yield and other characters of interest, seeking more efficient methods. The objective was to evaluate the potential of the "cryptic hybri...

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Autores principales: Canteros, Francisco, Caro, Roque Fernando
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agropecuarias 2022
Materias:
subtropics
breeding
genetic gains
stability
subtrópico
mejoramiento
ganancias genéticas
estabilidad
Acceso en línea:https://revistas.unc.edu.ar/index.php/agris/article/view/33696
Aporte de:
AgriScientia de Universidad Nacional de Córdoba
id I10-R352-article-33696
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spelling I10-R352-article-336962023-04-27T14:32:54Z Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method Avance genético y estabilidad de cultivares de maíz (Zea mays L.) obtenidos por el método de los híbridos crípticos Canteros, Francisco Caro, Roque Fernando subtropics breeding genetic gains stability subtrópico mejoramiento ganancias genéticas estabilidad The cultivation of maize is important in the Argentine subtropics. The Subtropical Corn Improvement Programs of the IIACS-CIAP-INTA, seeks the improvement of yield and other characters of interest, seeking more efficient methods. The objective was to evaluate the potential of the "cryptic hybrids" method, determining the genetic gains of first cycle hybrids (HC1), through yield analysis (RTO), prolificacy (PRO), weight thousand seeds (P1000), stalk broken (QUE%), stalk lodging (AC%), anthesis-silking interval (ASI), ear height (EH) and plant height (PH). Two experiments were carried out, the first with cycle 0 hybrids and cycle 1 hybrids (HC1), determining the gains achieved, these were high for RTO (1,841.3 kg.ha-1), QUE% and EH. The second experiment evaluated the HC1 in four environments, from the IIACS-CIAP-INTA in the department Leales Tucumán (LE), Finca El Manantial de la FAZ-UNT Tucumán (MA), Los Altos, Catamarca (LA) and El Palomar, Santiago del Estero (PA), in which the HC116 stood out for RTO and stability, in addition other hybrids with specific site adaptation were found. This methodology was found to have good potential for use in breeding programs. El cultivo de maíz es importante en el subtrópico argentino. Los programas de mejoramiento apuntan a lograr métodos eficientes. El objetivo de este trabajo fue evaluar el potencial del método de híbridos crípticos. En el Experimento 1 se determinaron las ganancias genéticas logradas (GsL) en híbridos de primer ciclo (HC1)para rendimiento (REND), prolificidad (PRO), peso de mil semillas (P1000), porcentaje quebrado de tallos (QUE%), porcentaje acame de plantas (AC%), intervalo antesis-emisión de estigmas (IAEE), altura inserción de espiga (AE) y altura de planta (AP). En el Experimento 2, se evaluó la estabilidad de los HC1 más los testigos, a través del gráfico GGE biplot. Para ello, se evaluaron los HC1 en cuatro ambientes: campo experimental de INTA en Leales, Tucumán (LE); en Finca “El Manantial” de la Facultad de Agronomía y Zootecnia, Universidad Nacional de Tucumán (MA); en Los Altos, Catamarca (LA); y en El Palomar, Santiago del Estero (PA). Los análisis se realizaron con Info-Gen. La GsL fue elevada para REND 1841,3 kg.ha-1 y QUE% (-18,28 %). En el Experimento 2, el híbrido HC116 sobresalió por REND y estabilidad. Esta metodología tiene un buen potencial para mejorar el REND y otros caracteres de interés.   Facultad de Ciencias Agropecuarias 2022-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/33696 10.31047/1668.298x.v39.n1.33696 AgriScientia; Vol. 39 No. 1 (2022); 49-58 AgriScientia; Vol. 39 Núm. 1 (2022); 49-58 1668-298X 10.31047/1668.298x.v39.n1 spa https://revistas.unc.edu.ar/index.php/agris/article/view/33696/38045 https://revistas.unc.edu.ar/index.php/agris/article/view/33696/41121 Derechos de autor 2022 Francisco Canteros, Roque Caro 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 Español
format Artículo revista
topic subtropics
breeding
genetic gains
stability
subtrópico
mejoramiento
ganancias genéticas
estabilidad
spellingShingle subtropics
breeding
genetic gains
stability
subtrópico
mejoramiento
ganancias genéticas
estabilidad
Canteros, Francisco
Caro, Roque Fernando
Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method
topic_facet subtropics
breeding
genetic gains
stability
subtrópico
mejoramiento
ganancias genéticas
estabilidad
author Canteros, Francisco
Caro, Roque Fernando
author_facet Canteros, Francisco
Caro, Roque Fernando
author_sort Canteros, Francisco
title Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method
title_short Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method
title_full Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method
title_fullStr Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method
title_full_unstemmed Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method
title_sort genetic advance and stability of maize (zea mays l.) cultivars obtained by the cryptic hybrid method
description The cultivation of maize is important in the Argentine subtropics. The Subtropical Corn Improvement Programs of the IIACS-CIAP-INTA, seeks the improvement of yield and other characters of interest, seeking more efficient methods. The objective was to evaluate the potential of the "cryptic hybrids" method, determining the genetic gains of first cycle hybrids (HC1), through yield analysis (RTO), prolificacy (PRO), weight thousand seeds (P1000), stalk broken (QUE%), stalk lodging (AC%), anthesis-silking interval (ASI), ear height (EH) and plant height (PH). Two experiments were carried out, the first with cycle 0 hybrids and cycle 1 hybrids (HC1), determining the gains achieved, these were high for RTO (1,841.3 kg.ha-1), QUE% and EH. The second experiment evaluated the HC1 in four environments, from the IIACS-CIAP-INTA in the department Leales Tucumán (LE), Finca El Manantial de la FAZ-UNT Tucumán (MA), Los Altos, Catamarca (LA) and El Palomar, Santiago del Estero (PA), in which the HC116 stood out for RTO and stability, in addition other hybrids with specific site adaptation were found. This methodology was found to have good potential for use in breeding programs.
publisher Facultad de Ciencias Agropecuarias
publishDate 2022
url https://revistas.unc.edu.ar/index.php/agris/article/view/33696
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first_indexed 2024-09-03T22:16:34Z
last_indexed 2024-09-03T22:16:34Z
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