Heat stress in maize : characterization and phenotypic plasticity
The future challenge will be to produce more maize and other crops, in stressed environments. Two experiments were carried out during the 2015-2016 season at INTA Leales field, Tucumán, Argentina. The treatments included a factorial arrangement of two thermal environments (non-stress and heat stress...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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CREA Journals
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/9825 https://journals-crea.4science.it/index.php/maydica/article/view/2179 |
| _version_ | 1855484468974845952 |
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| author | Parrado, Jorge Damian Canteros, Francisco H. Lorea, Roberto Daniel |
| author_browse | Canteros, Francisco H. Lorea, Roberto Daniel Parrado, Jorge Damian |
| author_facet | Parrado, Jorge Damian Canteros, Francisco H. Lorea, Roberto Daniel |
| author_sort | Parrado, Jorge Damian |
| collection | INTA Digital |
| description | The future challenge will be to produce more maize and other crops, in stressed environments. Two experiments were carried out during the 2015-2016 season at INTA Leales field, Tucumán, Argentina. The treatments included a factorial arrangement of two thermal environments (non-stress and heat stress) and 15 hybrids (Exp.1) and 6 maize inbred lines (Exp.2). The hybrids and inbred lines showed phenotypic variability in most of the evaluated
traits for heat stress during critical period for kernel set. The tropical genotypes (HS9, HS10 and L3) were identified as tolerant, while genotypes with a temperate x tropical and temperate genetic background (HS13, HS14 and L5) were identified as the most susceptible. There was a grain yield reduction of 82% and 78% in H13 and L5, respectively when comparing the non-heat stress environment with heat-stress environment. Range in phenotypic
plasticity was similar for hybrids and inbred lines, being the largest for trait such as, grain yield, kernel number, anthesis-silking interval, harvest index, and the smallest for traits such as kernel weight, ear diameter, prolificacy, aboveground biomass at physiological maturity, cumulative thermal time to silking and leaf greenness post stress on ear leaf. The outcomes from this research are promising for future heat-stress screening, in order to increase
the selection efficiency in a breeding program. |
| format | Artículo |
| id | INTA9825 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | CREA Journals |
| publisherStr | CREA Journals |
| record_format | dspace |
| spelling | INTA98252021-07-16T11:47:31Z Heat stress in maize : characterization and phenotypic plasticity Parrado, Jorge Damian Canteros, Francisco H. Lorea, Roberto Daniel Maize Heat Stress Heat Tolerance Phenotypic Plasticity Maíz Estrés Térmico Tolerancia al Calor Plasticidad Fenotípica Grain Yield Producción de Granos The future challenge will be to produce more maize and other crops, in stressed environments. Two experiments were carried out during the 2015-2016 season at INTA Leales field, Tucumán, Argentina. The treatments included a factorial arrangement of two thermal environments (non-stress and heat stress) and 15 hybrids (Exp.1) and 6 maize inbred lines (Exp.2). The hybrids and inbred lines showed phenotypic variability in most of the evaluated traits for heat stress during critical period for kernel set. The tropical genotypes (HS9, HS10 and L3) were identified as tolerant, while genotypes with a temperate x tropical and temperate genetic background (HS13, HS14 and L5) were identified as the most susceptible. There was a grain yield reduction of 82% and 78% in H13 and L5, respectively when comparing the non-heat stress environment with heat-stress environment. Range in phenotypic plasticity was similar for hybrids and inbred lines, being the largest for trait such as, grain yield, kernel number, anthesis-silking interval, harvest index, and the smallest for traits such as kernel weight, ear diameter, prolificacy, aboveground biomass at physiological maturity, cumulative thermal time to silking and leaf greenness post stress on ear leaf. The outcomes from this research are promising for future heat-stress screening, in order to increase the selection efficiency in a breeding program. EEA Pergamino Fil: Canteros, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina Fil: Parrado, Jorge. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido; Argentina Fil: Lorea, Roberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina 2021-07-16T11:34:11Z 2021-07-16T11:34:11Z 2020 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/9825 https://journals-crea.4science.it/index.php/maydica/article/view/2179 2279-8013 eng info:eu-repograntAgreement/INTA/PNCYO-1127042/AR./Bases ecofisiológicas para el mejoramiento genético y la calidad diferenciada de cereales y oleaginosas. info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf CREA Journals Maydica 65 (3) : 1-16 (2020) |
| spellingShingle | Maize Heat Stress Heat Tolerance Phenotypic Plasticity Maíz Estrés Térmico Tolerancia al Calor Plasticidad Fenotípica Grain Yield Producción de Granos Parrado, Jorge Damian Canteros, Francisco H. Lorea, Roberto Daniel Heat stress in maize : characterization and phenotypic plasticity |
| title | Heat stress in maize : characterization and phenotypic plasticity |
| title_full | Heat stress in maize : characterization and phenotypic plasticity |
| title_fullStr | Heat stress in maize : characterization and phenotypic plasticity |
| title_full_unstemmed | Heat stress in maize : characterization and phenotypic plasticity |
| title_short | Heat stress in maize : characterization and phenotypic plasticity |
| title_sort | heat stress in maize characterization and phenotypic plasticity |
| topic | Maize Heat Stress Heat Tolerance Phenotypic Plasticity Maíz Estrés Térmico Tolerancia al Calor Plasticidad Fenotípica Grain Yield Producción de Granos |
| url | http://hdl.handle.net/20.500.12123/9825 https://journals-crea.4science.it/index.php/maydica/article/view/2179 |
| work_keys_str_mv | AT parradojorgedamian heatstressinmaizecharacterizationandphenotypicplasticity AT canterosfranciscoh heatstressinmaizecharacterizationandphenotypicplasticity AT lorearobertodaniel heatstressinmaizecharacterizationandphenotypicplasticity |