Effect of clonal integration on drought and waterlogging response in urochloa humidicola
Clonal integration allows for the sharing of resources such as water, nutrients, and photosynthates among individual subunits of clonal plants, promoting adaptation to diverse environmental and ecological conditions. In livestock production systems, a key aspect in adapting to climate change is the...
| Main Authors: | , |
|---|---|
| Format: | Poster |
| Language: | Inglés |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/155545 |
| _version_ | 1855533135053193216 |
|---|---|
| author | Mayorga, Mildred Cardoso Arango, Juan Andres |
| author_browse | Cardoso Arango, Juan Andres Mayorga, Mildred |
| author_facet | Mayorga, Mildred Cardoso Arango, Juan Andres |
| author_sort | Mayorga, Mildred |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Clonal integration allows for the sharing of resources such as water, nutrients, and photosynthates among individual subunits of clonal plants, promoting adaptation to diverse environmental and ecological conditions. In livestock production systems, a key aspect in adapting to climate change is the use of forage materials tolerant to abiotic stresses such as water deficit and waterlogging. The accession of Urochloa humidicola CIAT 679 (cv. Tully) is a promising forage due to its good adaptation to acidic soils with low fertility, drought, and waterlogging. It also has a high biological nitrification inhibition capacity and efficient propagation through stolons, a reproductive system that allows for the maintenance of clonal integration among shoots of different generations. This study aimed to evaluate whether clonal integration is one of the strategies that confers tolerance to drought and waterlogging in CIAT 679. The treatments consisted of interactions between three stress conditions applied to the recipient clone: drought, control (no stress), and waterlogging, with two conditions of clonal integration: with integration and without integration (cutting between donor plant and recipient plant). Stomatal conductance, transpiration, SPAD index, relative water content (RWC), biomass distribution, and non-structural carbohydrates (NSC) were evaluated in the recipient plants. Stomatal conductance, transpiration, SPAD index, RWC, and NSC were lower in drought and waterlogging treatments that did not have clonal integration, with drought without integration being the most affected treatment. Root biomass was lower in drought treatments with and without clonal interaction, as well as in the waterlogging treatment with integration. This treatment also presented the lowest Root: Shoot ratio. The results suggest that clonal integration contributes to tolerance to waterlogging and drought stress in CIAT 679 plants, possibly through photosynthate translocation. |
| format | Poster |
| id | CGSpace155545 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| record_format | dspace |
| spelling | CGSpace1555452025-11-05T12:15:37Z Effect of clonal integration on drought and waterlogging response in urochloa humidicola Mayorga, Mildred Cardoso Arango, Juan Andres abiotic stress estrés abiótico translocation (plant physiology) stolons translocación de especies clon estolón clonal integration Clonal integration allows for the sharing of resources such as water, nutrients, and photosynthates among individual subunits of clonal plants, promoting adaptation to diverse environmental and ecological conditions. In livestock production systems, a key aspect in adapting to climate change is the use of forage materials tolerant to abiotic stresses such as water deficit and waterlogging. The accession of Urochloa humidicola CIAT 679 (cv. Tully) is a promising forage due to its good adaptation to acidic soils with low fertility, drought, and waterlogging. It also has a high biological nitrification inhibition capacity and efficient propagation through stolons, a reproductive system that allows for the maintenance of clonal integration among shoots of different generations. This study aimed to evaluate whether clonal integration is one of the strategies that confers tolerance to drought and waterlogging in CIAT 679. The treatments consisted of interactions between three stress conditions applied to the recipient clone: drought, control (no stress), and waterlogging, with two conditions of clonal integration: with integration and without integration (cutting between donor plant and recipient plant). Stomatal conductance, transpiration, SPAD index, relative water content (RWC), biomass distribution, and non-structural carbohydrates (NSC) were evaluated in the recipient plants. Stomatal conductance, transpiration, SPAD index, RWC, and NSC were lower in drought and waterlogging treatments that did not have clonal integration, with drought without integration being the most affected treatment. Root biomass was lower in drought treatments with and without clonal interaction, as well as in the waterlogging treatment with integration. This treatment also presented the lowest Root: Shoot ratio. The results suggest that clonal integration contributes to tolerance to waterlogging and drought stress in CIAT 679 plants, possibly through photosynthate translocation. 2024-09-12 2024-10-24T04:47:50Z 2024-10-24T04:47:50Z Poster https://hdl.handle.net/10568/155545 en Open Access application/pdf Mayorga, M.; Cardoso Arango, J.A. (2024) Effect of clonal integration on drought and waterlogging response in urochloa humidicola. Poster prepared for Tropentag: Explore opportunities... for managing natural resources and a better life for all, on 11-13 September 2024 in Vienna (Austria). 1 p. |
| spellingShingle | abiotic stress estrés abiótico translocation (plant physiology) stolons translocación de especies clon estolón clonal integration Mayorga, Mildred Cardoso Arango, Juan Andres Effect of clonal integration on drought and waterlogging response in urochloa humidicola |
| title | Effect of clonal integration on drought and waterlogging response in urochloa humidicola |
| title_full | Effect of clonal integration on drought and waterlogging response in urochloa humidicola |
| title_fullStr | Effect of clonal integration on drought and waterlogging response in urochloa humidicola |
| title_full_unstemmed | Effect of clonal integration on drought and waterlogging response in urochloa humidicola |
| title_short | Effect of clonal integration on drought and waterlogging response in urochloa humidicola |
| title_sort | effect of clonal integration on drought and waterlogging response in urochloa humidicola |
| topic | abiotic stress estrés abiótico translocation (plant physiology) stolons translocación de especies clon estolón clonal integration |
| url | https://hdl.handle.net/10568/155545 |
| work_keys_str_mv | AT mayorgamildred effectofclonalintegrationondroughtandwaterloggingresponseinurochloahumidicola AT cardosoarangojuanandres effectofclonalintegrationondroughtandwaterloggingresponseinurochloahumidicola |