Gas exchange and water use efficiency of native cover crops (Mendoza, Argentina), introduced crop species and weeds
Cover crops have been largely used in the soil management of vineyards as an environmentally sustainable tool for diverse purposes. A major limitation for cover crop use is the additional water consumption. Native grasses adapted to low water availability may be a feasible alternative under drip irr...
| Main Authors: | , , , |
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| Format: | Online |
| Language: | spa |
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Facultad de Ciencias Agropecuarias
2014
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| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/16529 |
| _version_ | 1811172543034294272 |
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| author | Uliarte, E.M. Parera, C.A. Alessandria, E.E. Dalmasso, A.D. |
| author_facet | Uliarte, E.M. Parera, C.A. Alessandria, E.E. Dalmasso, A.D. |
| author_sort | Uliarte, E.M. |
| collection | Portal de Revistas |
| description | Cover crops have been largely used in the soil management of vineyards as an environmentally sustainable tool for diverse purposes. A major limitation for cover crop use is the additional water consumption. Native grasses adapted to low water availability may be a feasible alternative under drip irrigation. The aim of the study was to evaluate water use efficiency and carbon dioxide fixation of three introduced cover crops, two weeds and six native grasses selected from three viticultural regions of Mendoza, Argentina. The experiment was conducted in Lujan de Cuyo, Mendoza, with experimental units (pots) distributed in a completely randomized design with 12 treatments and five replicates. Water consumption following the gravimetric method and gas exchange in whole plant were measured. Native C4 grasses presented the lowest annual water consumption and high water use efficiency under elevated temperature and limited water availability, since evapotranspiration decreased proportionally more than the carbon dioxide fixation. Results obtained under controlled conditions suggest that these native grasses can succeed as interrow cover crops in vineyards under drip irrigation. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-16529 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2014 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-165292020-02-27T18:43:10Z Gas exchange and water use efficiency of native cover crops (Mendoza, Argentina), introduced crop species and weeds Intercambio gaseoso y eficiencia en el uso del agua de cultivos de cobertura con especies nativas (Mendoza, Argentina), exóticas cultivadas y malezas Uliarte, E.M. Parera, C.A. Alessandria, E.E. Dalmasso, A.D. gramíneas nativas exóticas cultivadas malezas uso de agua fijación de CO2 native grasses exotic cultivated weeds water use CO2 fixation Cover crops have been largely used in the soil management of vineyards as an environmentally sustainable tool for diverse purposes. A major limitation for cover crop use is the additional water consumption. Native grasses adapted to low water availability may be a feasible alternative under drip irrigation. The aim of the study was to evaluate water use efficiency and carbon dioxide fixation of three introduced cover crops, two weeds and six native grasses selected from three viticultural regions of Mendoza, Argentina. The experiment was conducted in Lujan de Cuyo, Mendoza, with experimental units (pots) distributed in a completely randomized design with 12 treatments and five replicates. Water consumption following the gravimetric method and gas exchange in whole plant were measured. Native C4 grasses presented the lowest annual water consumption and high water use efficiency under elevated temperature and limited water availability, since evapotranspiration decreased proportionally more than the carbon dioxide fixation. Results obtained under controlled conditions suggest that these native grasses can succeed as interrow cover crops in vineyards under drip irrigation. Los cultivos de cobertura son utilizados como una herramienta ambientalmente sostenible con diversos propósitos. Una de las mayores limitantes para el uso de una cobertura vegetal es el consumo adicional de agua. Las especies herbáceas nativas adaptadas a baja disponibilidad hídrica pueden ser una alternativa factible en cultivos bajo riego localizado. El objetivo del estudio fue evaluar la eficiencia en el uso de agua y la fijación de dióxido de C de tres especies exóticas cultivadas, dos malezas y seis gramíneas nativas seleccionadas en tres regiones vitivinícolas de Mendoza, Argentina. La experimentación se efectuó en Luján de Cuyo, Mendoza, con unidades experimentales (macetas) distribuidas en diseño completamente aleatorizado con 12 tratamientos y 5 repeticiones. Se determinó consumo hídrico por el método gravimétrico e intercambio gaseoso en la planta entera. Las especies nativas tipo C4 su presentaron el menor consumo hídrico anual y elevada eficiencia en el uso del agua en condiciones de restricción hídrica y temperatura elevada, debido a que su evapotranspiración se redujo proporcionalmente más que la fijación de dióxido de C. Los resultados obtenidos bajo condiciones controladas sugieren que estas gramíneas nativas pueden tener éxito como cultivos de cobertura en el sitio interfilar de viñedos bajo riego por goteo. Facultad de Ciencias Agropecuarias 2014-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/16529 10.31047/1668.298x.v31.n2.16529 AgriScientia; Vol. 31 No. 2 (2014); 49-61 AgriScientia; Vol. 31 Núm. 2 (2014); 49-61 1668-298X 10.31047/1668.298x.v31.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/16529/16341 |
| spellingShingle | gramíneas nativas exóticas cultivadas malezas uso de agua fijación de CO2 native grasses exotic cultivated weeds water use CO2 fixation Uliarte, E.M. Parera, C.A. Alessandria, E.E. Dalmasso, A.D. Gas exchange and water use efficiency of native cover crops (Mendoza, Argentina), introduced crop species and weeds |
| title | Gas exchange and water use efficiency of native cover crops (Mendoza, Argentina), introduced crop species and weeds |
| title_alt | Intercambio gaseoso y eficiencia en el uso del agua de cultivos de cobertura con especies nativas (Mendoza, Argentina), exóticas cultivadas y malezas |
| title_full | Gas exchange and water use efficiency of native cover crops (Mendoza, Argentina), introduced crop species and weeds |
| title_fullStr | Gas exchange and water use efficiency of native cover crops (Mendoza, Argentina), introduced crop species and weeds |
| title_full_unstemmed | Gas exchange and water use efficiency of native cover crops (Mendoza, Argentina), introduced crop species and weeds |
| title_short | Gas exchange and water use efficiency of native cover crops (Mendoza, Argentina), introduced crop species and weeds |
| title_sort | gas exchange and water use efficiency of native cover crops mendoza argentina introduced crop species and weeds |
| topic | gramíneas nativas exóticas cultivadas malezas uso de agua fijación de CO2 native grasses exotic cultivated weeds water use CO2 fixation |
| topic_facet | gramíneas nativas exóticas cultivadas malezas uso de agua fijación de CO2 native grasses exotic cultivated weeds water use CO2 fixation |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/16529 |
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