Report on selections and hybrid performance in first multienvironmental trial
With the aim to increase the supply of forage options, the Tropical Forages program at the International Center for Tropical Agriculture (CIAT; now Alliance Bioversity International – CIAT), has contributed since 1968 continuously to improve livestock production systems through selection and breedin...
| Main Authors: | , , , |
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| Format: | Informe técnico |
| Language: | Inglés |
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Bioversity International and the International Center for Tropical Agriculture
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/111318 |
| _version_ | 1855534905138610176 |
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| author | Hernández, Luis Miguel Ríos, Gonzalo Espitia, Paula A. Castiblanco, Valheria |
| author_browse | Castiblanco, Valheria Espitia, Paula A. Hernández, Luis Miguel Ríos, Gonzalo |
| author_facet | Hernández, Luis Miguel Ríos, Gonzalo Espitia, Paula A. Castiblanco, Valheria |
| author_sort | Hernández, Luis Miguel |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | With the aim to increase the supply of forage options, the Tropical Forages program at the International Center for Tropical Agriculture (CIAT; now Alliance Bioversity International – CIAT), has contributed since 1968 continuously to improve livestock production systems through selection and breeding of Urochloa grass to identify genotypes with desirable characteristics such as drought-tolerance, spittlebug resistance and adaptation to acid soils, which has allowed enhancing the efficiency of livestock production systems in the tropics. A new cohort of interspecific and apomictic hybrids (Br19) was evaluated in three locations to select best 300 hybrids with high adaptation to acid soils. The experiment was conducted in Federer's augmented designs. Traits such as biomass, height, coverage area, and growth habit were evaluated. An analysis of variance and another of genetic variability were performed only for the height trait. The analysis of variance indicates that there are significant differences between genotypes, revealing that there is sufficient variability in evaluated genotypes so the selection to develop new cultivars with the desired height can be effective. The evaluation dates in the three environments showed high values of heritability combined with high values of genetic advancement, which indicates that the height trait is controlled by the additive action of genes and can be improved by simple selection or by descent methods. |
| format | Informe técnico |
| id | CGSpace111318 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Bioversity International and the International Center for Tropical Agriculture |
| publisherStr | Bioversity International and the International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace1113182025-12-08T10:29:22Z Report on selections and hybrid performance in first multienvironmental trial Hernández, Luis Miguel Ríos, Gonzalo Espitia, Paula A. Castiblanco, Valheria plant breeding variety trials hybrids fitomejoramiento ensayos de variedades híbridos With the aim to increase the supply of forage options, the Tropical Forages program at the International Center for Tropical Agriculture (CIAT; now Alliance Bioversity International – CIAT), has contributed since 1968 continuously to improve livestock production systems through selection and breeding of Urochloa grass to identify genotypes with desirable characteristics such as drought-tolerance, spittlebug resistance and adaptation to acid soils, which has allowed enhancing the efficiency of livestock production systems in the tropics. A new cohort of interspecific and apomictic hybrids (Br19) was evaluated in three locations to select best 300 hybrids with high adaptation to acid soils. The experiment was conducted in Federer's augmented designs. Traits such as biomass, height, coverage area, and growth habit were evaluated. An analysis of variance and another of genetic variability were performed only for the height trait. The analysis of variance indicates that there are significant differences between genotypes, revealing that there is sufficient variability in evaluated genotypes so the selection to develop new cultivars with the desired height can be effective. The evaluation dates in the three environments showed high values of heritability combined with high values of genetic advancement, which indicates that the height trait is controlled by the additive action of genes and can be improved by simple selection or by descent methods. 2020 2021-02-15T10:41:00Z 2021-02-15T10:41:00Z Report https://hdl.handle.net/10568/111318 en Open Access application/pdf Bioversity International and the International Center for Tropical Agriculture Hernández, L.M.; Rios, G.; Espitia, P.; Castiblanco, V. (2020) Report on selections and hybrid performance in first multienvironmental trial. Cali (Colombia): Alliance of Bioversity and CIAT. 11 p. |
| spellingShingle | plant breeding variety trials hybrids fitomejoramiento ensayos de variedades híbridos Hernández, Luis Miguel Ríos, Gonzalo Espitia, Paula A. Castiblanco, Valheria Report on selections and hybrid performance in first multienvironmental trial |
| title | Report on selections and hybrid performance in first multienvironmental trial |
| title_full | Report on selections and hybrid performance in first multienvironmental trial |
| title_fullStr | Report on selections and hybrid performance in first multienvironmental trial |
| title_full_unstemmed | Report on selections and hybrid performance in first multienvironmental trial |
| title_short | Report on selections and hybrid performance in first multienvironmental trial |
| title_sort | report on selections and hybrid performance in first multienvironmental trial |
| topic | plant breeding variety trials hybrids fitomejoramiento ensayos de variedades híbridos |
| url | https://hdl.handle.net/10568/111318 |
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