Differences between phenotypic selection methods in two botanical varieties of Panicum coloratum L. (Kleingrass) to increase forage production under saline-hypoxic conditions
Changes in climatic conditions increased abiotic stresses such as salinity and temporary waterlogging in previously productive environments. Livestock production has been forced to adapt to these conditions. Subtropical forage grasses, moderately tolerant to abiotic stresses, have been introduced to...
| Autores principales: | , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Wiley
2025
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/23096 https://onlinelibrary.wiley.com/doi/10.1111/pbr.13293 https://doi.org/10.1111/pbr.13293 |
| _version_ | 1855038693799100416 |
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| author | Lifschitz, Mauro Ezequiel Re, Alejo Esteban Tomas, Maria Andrea |
| author_browse | Lifschitz, Mauro Ezequiel Re, Alejo Esteban Tomas, Maria Andrea |
| author_facet | Lifschitz, Mauro Ezequiel Re, Alejo Esteban Tomas, Maria Andrea |
| author_sort | Lifschitz, Mauro Ezequiel |
| collection | INTA Digital |
| description | Changes in climatic conditions increased abiotic stresses such as salinity and temporary waterlogging in previously productive environments. Livestock production has been forced to adapt to these conditions. Subtropical forage grasses, moderately tolerant to abiotic stresses, have been introduced to increase the productivity under unfavourable conditions common in these environments. We evaluated and compared variability, correlation and genetic gain per cycle in two botanical varieties of Panicum coloratum (makarikariense and coloratum) under saline-hypoxic conditions using individual and progeny test selection methods. Narrow-sense heritabilities were moderate for some characters while it was quite high in some of the traits considered. High genetic correlations between traits suggested the possibility of selecting secondary traits to increase biomass production under stress. Varieties differed in their most efficient method to perform selection, possibly as result of their different genetic structure. Individual phenotypic selection was more efficient in coloratum variety, whereas selection by progeny test was competent in var. makarikariense. To increase aerial biomass, indirect selection of genotypes with higher tiller number was more efficient than direct selection when using IPS in var. makarikariense. Breeding progress in tolerance to salinity–waterlogging stress may be achievable either by direct or indirect selection on traits and/or combination of characters in an index. |
| format | info:ar-repo/semantics/artículo |
| id | INTA23096 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA230962025-07-21T12:34:42Z Differences between phenotypic selection methods in two botanical varieties of Panicum coloratum L. (Kleingrass) to increase forage production under saline-hypoxic conditions Lifschitz, Mauro Ezequiel Re, Alejo Esteban Tomas, Maria Andrea Plant Breeding Hypoxia Salinity Fitomejoramiento Salinidad Hipoxia Panicum coloratum Pasto Colorado Selección Fenotípica Recurrente Forraje Tropical Recurrent Phenotypic Selection Tropical Forage Changes in climatic conditions increased abiotic stresses such as salinity and temporary waterlogging in previously productive environments. Livestock production has been forced to adapt to these conditions. Subtropical forage grasses, moderately tolerant to abiotic stresses, have been introduced to increase the productivity under unfavourable conditions common in these environments. We evaluated and compared variability, correlation and genetic gain per cycle in two botanical varieties of Panicum coloratum (makarikariense and coloratum) under saline-hypoxic conditions using individual and progeny test selection methods. Narrow-sense heritabilities were moderate for some characters while it was quite high in some of the traits considered. High genetic correlations between traits suggested the possibility of selecting secondary traits to increase biomass production under stress. Varieties differed in their most efficient method to perform selection, possibly as result of their different genetic structure. Individual phenotypic selection was more efficient in coloratum variety, whereas selection by progeny test was competent in var. makarikariense. To increase aerial biomass, indirect selection of genotypes with higher tiller number was more efficient than direct selection when using IPS in var. makarikariense. Breeding progress in tolerance to salinity–waterlogging stress may be achievable either by direct or indirect selection on traits and/or combination of characters in an index. EEA Rafaela Fil: Lifschitz, Mauro Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina Fil: Lifschitz, Mauro Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina Fil: Re, Alejo Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concepción del Uruguay. Área de Investigación y Desarrollo Tecnológico; Argentina Fil: Tomas, Maria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina Fil: Tomas, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina 2025-07-21T11:42:10Z 2025-07-21T11:42:10Z 2025-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/23096 https://onlinelibrary.wiley.com/doi/10.1111/pbr.13293 1439-0523 (online) https://doi.org/10.1111/pbr.13293 eng info:eu-repograntAgreement/INTA/2023-PD-L01-I100, Genética en forrajeras para ambientes y mercados desafiantes 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 Plant Breeding : 1-10 (First published: 11 June 2025) |
| spellingShingle | Plant Breeding Hypoxia Salinity Fitomejoramiento Salinidad Hipoxia Panicum coloratum Pasto Colorado Selección Fenotípica Recurrente Forraje Tropical Recurrent Phenotypic Selection Tropical Forage Lifschitz, Mauro Ezequiel Re, Alejo Esteban Tomas, Maria Andrea Differences between phenotypic selection methods in two botanical varieties of Panicum coloratum L. (Kleingrass) to increase forage production under saline-hypoxic conditions |
| title | Differences between phenotypic selection methods in two botanical varieties of Panicum coloratum L. (Kleingrass) to increase forage production under saline-hypoxic conditions |
| title_full | Differences between phenotypic selection methods in two botanical varieties of Panicum coloratum L. (Kleingrass) to increase forage production under saline-hypoxic conditions |
| title_fullStr | Differences between phenotypic selection methods in two botanical varieties of Panicum coloratum L. (Kleingrass) to increase forage production under saline-hypoxic conditions |
| title_full_unstemmed | Differences between phenotypic selection methods in two botanical varieties of Panicum coloratum L. (Kleingrass) to increase forage production under saline-hypoxic conditions |
| title_short | Differences between phenotypic selection methods in two botanical varieties of Panicum coloratum L. (Kleingrass) to increase forage production under saline-hypoxic conditions |
| title_sort | differences between phenotypic selection methods in two botanical varieties of panicum coloratum l kleingrass to increase forage production under saline hypoxic conditions |
| topic | Plant Breeding Hypoxia Salinity Fitomejoramiento Salinidad Hipoxia Panicum coloratum Pasto Colorado Selección Fenotípica Recurrente Forraje Tropical Recurrent Phenotypic Selection Tropical Forage |
| url | http://hdl.handle.net/20.500.12123/23096 https://onlinelibrary.wiley.com/doi/10.1111/pbr.13293 https://doi.org/10.1111/pbr.13293 |
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