Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins
In arid environments, water availability is the main limiting factor for primary production, and it is expected that not only drought-resistance, but also plant strategies for soil water use will be under natural selection. Our aim was to investigate the strategies of soil water use and the response...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2018
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| Online Access: | https://link.springer.com/article/10.1007/s11258-013-0228-4 http://hdl.handle.net/20.500.12123/2745 https://doi.org/10.1007/s11258-013-0228-4 |
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| author | Quiroga, Raul Emiliano Fernandez, Roberto J. Golluscio, Rodolfo Angel Blanco, Lisandro Javier |
| author_browse | Blanco, Lisandro Javier Fernandez, Roberto J. Golluscio, Rodolfo Angel Quiroga, Raul Emiliano |
| author_facet | Quiroga, Raul Emiliano Fernandez, Roberto J. Golluscio, Rodolfo Angel Blanco, Lisandro Javier |
| author_sort | Quiroga, Raul Emiliano |
| collection | INTA Digital |
| description | In arid environments, water availability is the main limiting factor for primary production, and it is expected that not only drought-resistance, but also plant strategies for soil water use will be under natural selection. Our aim was to investigate the strategies of soil water use and the responses to water shortage that lead to variability in drought resistance in Trichloris crinita plants (a native forage grass of northwestern Argentina) from sites with contrasting aridity. We established a common-garden experiment with plants from relatively “arid” and “humid” sites (326 and 625 mm mean annual precipitation, respectively). During 6 weeks, plants were subjected to two contrasting watering levels: control and drought. We found different water use strategies and drought resistance between plants from arid and humid sites: the former used water more conservatively and grew more under drought. During the first 2 weeks of the drought treatment, plants from arid sites dried out the soil slower than those from humid sites. Plants from arid sites subjected to drought showed less leaf senescence and a greater leaf elongation rate and biomass of green leaves than those from humid sites. This variability in adaptation to drought in T. crinita plants could be used to select plant materials for arid land revegetation or to be incorporated into breeding programs for forage purposes. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2745 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA27452020-12-18T16:55:51Z Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins Quiroga, Raul Emiliano Fernandez, Roberto J. Golluscio, Rodolfo Angel Blanco, Lisandro Javier Gramineas Resistencia a la Sequía Uso del Agua Zona Arida Grasses Drought Resistance Water Use Arid Zones Trichloris Crinita In arid environments, water availability is the main limiting factor for primary production, and it is expected that not only drought-resistance, but also plant strategies for soil water use will be under natural selection. Our aim was to investigate the strategies of soil water use and the responses to water shortage that lead to variability in drought resistance in Trichloris crinita plants (a native forage grass of northwestern Argentina) from sites with contrasting aridity. We established a common-garden experiment with plants from relatively “arid” and “humid” sites (326 and 625 mm mean annual precipitation, respectively). During 6 weeks, plants were subjected to two contrasting watering levels: control and drought. We found different water use strategies and drought resistance between plants from arid and humid sites: the former used water more conservatively and grew more under drought. During the first 2 weeks of the drought treatment, plants from arid sites dried out the soil slower than those from humid sites. Plants from arid sites subjected to drought showed less leaf senescence and a greater leaf elongation rate and biomass of green leaves than those from humid sites. This variability in adaptation to drought in T. crinita plants could be used to select plant materials for arid land revegetation or to be incorporated into breeding programs for forage purposes. EEA Catamarca Fil: Quiroga, Raul Emiliano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Catamarca; Argentina Fil: Fernandez, Roberto J. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Ecología; Argentina Fil: Golluscio, Rodolfo A. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Forrajicultura; Argentina Fil: Blanco, Lisandro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina 2018-07-10T12:01:53Z 2018-07-10T12:01:53Z 2013-08 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://link.springer.com/article/10.1007/s11258-013-0228-4 http://hdl.handle.net/20.500.12123/2745 1385-0237 1573-5052 https://doi.org/10.1007/s11258-013-0228-4 eng info:eu-repo/semantics/restrictedAccess application/pdf Plant Ecology 214 (8) : 1027–1035 (August 2013) |
| spellingShingle | Gramineas Resistencia a la Sequía Uso del Agua Zona Arida Grasses Drought Resistance Water Use Arid Zones Trichloris Crinita Quiroga, Raul Emiliano Fernandez, Roberto J. Golluscio, Rodolfo Angel Blanco, Lisandro Javier Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins |
| title | Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins |
| title_full | Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins |
| title_fullStr | Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins |
| title_full_unstemmed | Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins |
| title_short | Differential water-use strategies and drought resistance in Trichloris crinita plants from contrasting aridity origins |
| title_sort | differential water use strategies and drought resistance in trichloris crinita plants from contrasting aridity origins |
| topic | Gramineas Resistencia a la Sequía Uso del Agua Zona Arida Grasses Drought Resistance Water Use Arid Zones Trichloris Crinita |
| url | https://link.springer.com/article/10.1007/s11258-013-0228-4 http://hdl.handle.net/20.500.12123/2745 https://doi.org/10.1007/s11258-013-0228-4 |
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