Diallel analysis of kernel weight and grain-filling traits in maize grown under contrasting nitrogen supply
Understanding the inheritance of maize (Zea mays L.) kernel weight (KW) under contrasting nitrogen (N) supply is crucial for obtaining high KW across diverse N conditions. This work evaluated broad-sense heritability (H2), general combining ability (GCA), and specific combining ability (SCA) under c...
| Autores principales: | , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Español |
| Publicado: |
Wiley
2023
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/14201 https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/agj2.21261 https://doi.org/10.1002/agj2.21261 |
| _version_ | 1855037075950141440 |
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| author | Hisse, Ignacio R. D’Andrea, Karina Elizabeth Otegui, María Elena |
| author_browse | D’Andrea, Karina Elizabeth Hisse, Ignacio R. Otegui, María Elena |
| author_facet | Hisse, Ignacio R. D’Andrea, Karina Elizabeth Otegui, María Elena |
| author_sort | Hisse, Ignacio R. |
| collection | INTA Digital |
| description | Understanding the inheritance of maize (Zea mays L.) kernel weight (KW) under contrasting nitrogen (N) supply is crucial for obtaining high KW across diverse N conditions. This work evaluated broad-sense heritability (H2), general combining ability (GCA), and specific combining ability (SCA) under contrasting N levels for (i) KW and kernel number per plant and (ii) grain-filling traits represented by the duration of lag and effective filling phases, kernel growth and desiccation rates, maximum water content and volume, and moisture content at physiological maturity. A six-parent full diallel cross generated via Griffing's method 3 was tested under high (N200) and low (N0) N supply in 2 years (Y). For the various traits: (i) F1 hybrid, and F1 by Y and/or N interactions were significant (p < 0.05); (ii) GCA was significant at both N levels and affected (p < 0.05) by the Y effect; (iii) SCA was important (p < 0.05) only at N200; and (iv) GCA sum of squares was higher than those of SCA (except for KW). For KW and grain-filling traits, H2 and GCA/SCA ratios were higher at N0 than at N200, suggesting low-N environments would be more advantageous for developing genetic selection. Lag-phase duration (LPD), kernel desiccation rate (KDR), and kernel maximum water content (KWCMAX) had higher H2 (≥0.70) and GCA/SCA ratio than KW, particularly under N0. Thus, the highest KW hybrid (LP2×LP662) was composed of inbreds with high GCA for LPD, KDR and KWCMAX, revealing superior KW hybrids could be selected from the GCA of mentioned traits. |
| format | info:ar-repo/semantics/artículo |
| id | INTA14201 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Español |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA142012023-03-10T15:43:33Z Diallel analysis of kernel weight and grain-filling traits in maize grown under contrasting nitrogen supply Hisse, Ignacio R. D’Andrea, Karina Elizabeth Otegui, María Elena Maíz Granos Heredabilidad Nitrógeno Peso de las Semillas Llenado Maize Grain Heritability Nitrogen Seed Weight Filling Grano de Maíz Kernel Desiccation Rate Kernel Growth Rate Understanding the inheritance of maize (Zea mays L.) kernel weight (KW) under contrasting nitrogen (N) supply is crucial for obtaining high KW across diverse N conditions. This work evaluated broad-sense heritability (H2), general combining ability (GCA), and specific combining ability (SCA) under contrasting N levels for (i) KW and kernel number per plant and (ii) grain-filling traits represented by the duration of lag and effective filling phases, kernel growth and desiccation rates, maximum water content and volume, and moisture content at physiological maturity. A six-parent full diallel cross generated via Griffing's method 3 was tested under high (N200) and low (N0) N supply in 2 years (Y). For the various traits: (i) F1 hybrid, and F1 by Y and/or N interactions were significant (p < 0.05); (ii) GCA was significant at both N levels and affected (p < 0.05) by the Y effect; (iii) SCA was important (p < 0.05) only at N200; and (iv) GCA sum of squares was higher than those of SCA (except for KW). For KW and grain-filling traits, H2 and GCA/SCA ratios were higher at N0 than at N200, suggesting low-N environments would be more advantageous for developing genetic selection. Lag-phase duration (LPD), kernel desiccation rate (KDR), and kernel maximum water content (KWCMAX) had higher H2 (≥0.70) and GCA/SCA ratio than KW, particularly under N0. Thus, the highest KW hybrid (LP2×LP662) was composed of inbreds with high GCA for LPD, KDR and KWCMAX, revealing superior KW hybrids could be selected from the GCA of mentioned traits. EEA Pergamino Fil: Hisse, Ignacio R. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina Fil: Hisse, Ignacio R. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: D’Andrea, Karina E. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina Fil: D’Andrea, Karina E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Otegui, María Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Ecofisiología; Argentina Fil: Otegui, María E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Otegui, María E. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina 2023-03-10T15:37:12Z 2023-03-10T15:37:12Z 2023-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/14201 https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/agj2.21261 1435-0645 https://doi.org/10.1002/agj2.21261 spa 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/restrictedAccess 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 Wiley Agronomy Journal 115 (1) : 1–14. (January- February 2023) |
| spellingShingle | Maíz Granos Heredabilidad Nitrógeno Peso de las Semillas Llenado Maize Grain Heritability Nitrogen Seed Weight Filling Grano de Maíz Kernel Desiccation Rate Kernel Growth Rate Hisse, Ignacio R. D’Andrea, Karina Elizabeth Otegui, María Elena Diallel analysis of kernel weight and grain-filling traits in maize grown under contrasting nitrogen supply |
| title | Diallel analysis of kernel weight and grain-filling traits in maize grown under contrasting nitrogen supply |
| title_full | Diallel analysis of kernel weight and grain-filling traits in maize grown under contrasting nitrogen supply |
| title_fullStr | Diallel analysis of kernel weight and grain-filling traits in maize grown under contrasting nitrogen supply |
| title_full_unstemmed | Diallel analysis of kernel weight and grain-filling traits in maize grown under contrasting nitrogen supply |
| title_short | Diallel analysis of kernel weight and grain-filling traits in maize grown under contrasting nitrogen supply |
| title_sort | diallel analysis of kernel weight and grain filling traits in maize grown under contrasting nitrogen supply |
| topic | Maíz Granos Heredabilidad Nitrógeno Peso de las Semillas Llenado Maize Grain Heritability Nitrogen Seed Weight Filling Grano de Maíz Kernel Desiccation Rate Kernel Growth Rate |
| url | http://hdl.handle.net/20.500.12123/14201 https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/agj2.21261 https://doi.org/10.1002/agj2.21261 |
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