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...
| Main Authors: | , |
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| Format: | Online |
| Language: | spa |
| Published: |
Facultad de Ciencias Agropecuarias
2022
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| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/33696 |
| _version_ | 1811172645787402240 |
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| author | Canteros, Francisco Caro, Roque Fernando |
| author_facet | Canteros, Francisco Caro, Roque Fernando |
| author_sort | Canteros, Francisco |
| collection | Portal de Revistas |
| 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. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-33696 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2022 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-336962023-04-27T17:32:54Z 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 |
| 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 |
| title | Genetic advance and stability of maize (Zea mays L.) cultivars obtained by the cryptic hybrid method |
| title_alt | Avance genético y estabilidad de cultivares de maíz (Zea mays L.) obtenidos por el método de los híbridos crípticos |
| 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_short | 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 |
| topic | subtropics breeding genetic gains stability subtrópico mejoramiento ganancias genéticas estabilidad |
| topic_facet | subtropics breeding genetic gains stability subtrópico mejoramiento ganancias genéticas estabilidad |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/33696 |
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