Heterosis on morphological, reproductive and productive behavior of Acroceras macrum Stapf hybrids
Acroceras macrum, a forage grass from Africa, offers potential for enhancing cattle production in subtropical flood-prone regions. Despite its use in Northeast Argentina since the 1980s, the lack of available fertile seeds limits its widespread adoption and large-scale cultivation. We evaluate a ger...
| Main Authors: | , , , , |
|---|---|
| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
| Published: |
Springer
2024
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/19009 https://link.springer.com/article/10.1007/s10681-024-03401-7 https://doi.org/10.1007/s10681-024-03401-7 |
| _version_ | 1855037956534829056 |
|---|---|
| author | Ferrari Usandizaga, Silvana Consuelo Brugnoli, Elsa Andrea Maidana, Carlos Emilio Martinez, Eric Javier Acuña, Carlos Alberto |
| author_browse | Acuña, Carlos Alberto Brugnoli, Elsa Andrea Ferrari Usandizaga, Silvana Consuelo Maidana, Carlos Emilio Martinez, Eric Javier |
| author_facet | Ferrari Usandizaga, Silvana Consuelo Brugnoli, Elsa Andrea Maidana, Carlos Emilio Martinez, Eric Javier Acuña, Carlos Alberto |
| author_sort | Ferrari Usandizaga, Silvana Consuelo |
| collection | INTA Digital |
| description | Acroceras macrum, a forage grass from Africa, offers potential for enhancing cattle production in subtropical flood-prone regions. Despite its use in Northeast Argentina since the 1980s, the lack of available fertile seeds limits its widespread adoption and large-scale cultivation. We evaluate a germplasm collection of hybrids generated for breeding purposes in Corrientes, Argentina. To assess the feasibility of breeding programs, we examined heterosis and heritability through phenotypic traits. We evaluated growth characteristics (initial vigor, ground cover), plant morphology (leaf and internode size), biomass production (across two sites and years), reproductive stem proportion, flowering peak timing, and seed filling (measured on four dates). Six families were assessed: four full-sibling families compared to the superior parent, and two half-sibling families. The timing of the flowering peak exhibited a correlation with photoperiod. All traits depended on parental combinations, exhibiting significant intra-familial variability ranging from negative heterotic hybrids exceeding 80% to positive hybrids reaching 90%. Correlations between heterosis of the traits and parents’ genetic distance must be confirmed. Nevertheless, correlativeness was mainly observed for biomass production for distinct years and seasons. Hence, genetic distance could be a useful tool for the election of the parental combinations to improve this key trait in the species. Furthermore, heritability, was significant for most evaluated traits. It also could be exploited for breeding. This comprehensive assessment sheds light on the phenotypic behavior of A. macrum families, providing valuable insights for future breeding efforts aimed at enhancing its agronomic potential in subtropical regions prone to flooding. |
| format | info:ar-repo/semantics/artículo |
| id | INTA19009 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA190092024-08-20T11:18:02Z Heterosis on morphological, reproductive and productive behavior of Acroceras macrum Stapf hybrids Ferrari Usandizaga, Silvana Consuelo Brugnoli, Elsa Andrea Maidana, Carlos Emilio Martinez, Eric Javier Acuña, Carlos Alberto Acroceras macrum Forage Hybrids Heterosis Plant Morphology Phenology Forrajes Híbridos Vigor Híbrido Morfología Vegetal Fenología Pasto del Nilo Nile Grass Acroceras macrum, a forage grass from Africa, offers potential for enhancing cattle production in subtropical flood-prone regions. Despite its use in Northeast Argentina since the 1980s, the lack of available fertile seeds limits its widespread adoption and large-scale cultivation. We evaluate a germplasm collection of hybrids generated for breeding purposes in Corrientes, Argentina. To assess the feasibility of breeding programs, we examined heterosis and heritability through phenotypic traits. We evaluated growth characteristics (initial vigor, ground cover), plant morphology (leaf and internode size), biomass production (across two sites and years), reproductive stem proportion, flowering peak timing, and seed filling (measured on four dates). Six families were assessed: four full-sibling families compared to the superior parent, and two half-sibling families. The timing of the flowering peak exhibited a correlation with photoperiod. All traits depended on parental combinations, exhibiting significant intra-familial variability ranging from negative heterotic hybrids exceeding 80% to positive hybrids reaching 90%. Correlations between heterosis of the traits and parents’ genetic distance must be confirmed. Nevertheless, correlativeness was mainly observed for biomass production for distinct years and seasons. Hence, genetic distance could be a useful tool for the election of the parental combinations to improve this key trait in the species. Furthermore, heritability, was significant for most evaluated traits. It also could be exploited for breeding. This comprehensive assessment sheds light on the phenotypic behavior of A. macrum families, providing valuable insights for future breeding efforts aimed at enhancing its agronomic potential in subtropical regions prone to flooding. EEA Corrientes Fil: Ferrari Usandizaga, Silvana Consuelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Corrientes; Argentina Fil: Brugnoli, Elsa Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina Fil: Brugnoli, Elsa Andrea. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina Fil: Maidana, Carlos Emilio. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cerro Azul; Argentina Fil: Martínez, Eric Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina Fil: Martínez, Eric Javier. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina Fil: Acuña, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste; Argentina Fil: Acuña, Carlos Alberto. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina 2024-08-20T11:15:21Z 2024-08-20T11:15:21Z 2024-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/19009 https://link.springer.com/article/10.1007/s10681-024-03401-7 0014-2336 1573-5060 https://doi.org/10.1007/s10681-024-03401-7 eng 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 Springer Euphytica 220 : article number 142. (August 2024) |
| spellingShingle | Acroceras macrum Forage Hybrids Heterosis Plant Morphology Phenology Forrajes Híbridos Vigor Híbrido Morfología Vegetal Fenología Pasto del Nilo Nile Grass Ferrari Usandizaga, Silvana Consuelo Brugnoli, Elsa Andrea Maidana, Carlos Emilio Martinez, Eric Javier Acuña, Carlos Alberto Heterosis on morphological, reproductive and productive behavior of Acroceras macrum Stapf hybrids |
| title | Heterosis on morphological, reproductive and productive behavior of Acroceras macrum Stapf hybrids |
| title_full | Heterosis on morphological, reproductive and productive behavior of Acroceras macrum Stapf hybrids |
| title_fullStr | Heterosis on morphological, reproductive and productive behavior of Acroceras macrum Stapf hybrids |
| title_full_unstemmed | Heterosis on morphological, reproductive and productive behavior of Acroceras macrum Stapf hybrids |
| title_short | Heterosis on morphological, reproductive and productive behavior of Acroceras macrum Stapf hybrids |
| title_sort | heterosis on morphological reproductive and productive behavior of acroceras macrum stapf hybrids |
| topic | Acroceras macrum Forage Hybrids Heterosis Plant Morphology Phenology Forrajes Híbridos Vigor Híbrido Morfología Vegetal Fenología Pasto del Nilo Nile Grass |
| url | http://hdl.handle.net/20.500.12123/19009 https://link.springer.com/article/10.1007/s10681-024-03401-7 https://doi.org/10.1007/s10681-024-03401-7 |
| work_keys_str_mv | AT ferrariusandizagasilvanaconsuelo heterosisonmorphologicalreproductiveandproductivebehaviorofacrocerasmacrumstapfhybrids AT brugnolielsaandrea heterosisonmorphologicalreproductiveandproductivebehaviorofacrocerasmacrumstapfhybrids AT maidanacarlosemilio heterosisonmorphologicalreproductiveandproductivebehaviorofacrocerasmacrumstapfhybrids AT martinezericjavier heterosisonmorphologicalreproductiveandproductivebehaviorofacrocerasmacrumstapfhybrids AT acunacarlosalberto heterosisonmorphologicalreproductiveandproductivebehaviorofacrocerasmacrumstapfhybrids |